U.S. patent application number 10/091295 was filed with the patent office on 2002-10-24 for aqueous suspension concentrate.
This patent application is currently assigned to BASF Aktiengesellschaft. Invention is credited to Aven, Michael.
Application Number | 20020155954 10/091295 |
Document ID | / |
Family ID | 26815555 |
Filed Date | 2002-10-24 |
United States Patent
Application |
20020155954 |
Kind Code |
A1 |
Aven, Michael |
October 24, 2002 |
Aqueous suspension concentrate
Abstract
The invention relates to an aqueous, concentrated suspension
(SC) for crop protection active compounds which comprises (a) 50 to
400 g/L of at least one crop protection active compound; (b) 50 to
500 g/L of at least one adjuvant, which reduces the surface tension
in the spray dilution 40 mN/m or less and does not promote the
particle growth of the crop protection active compound; (c) at
least one surfactant selected from the groups (c1) and (c2): (c1) 5
to 75 g/L of one or more non-ionic dispersants, (c2) 10 to 100 g/L
of one or more anionic dispersants, (d) up to 150 g/L of one or
more anti-freezing agents, (e) up to 25 g/L of one or more
defoamers, (f) up to 25 g/L of one or more preservatives, and (g)
200 to 800 g/L of water, wherein the adjuvant (b) is selected from
the group consisting of amine alkoxylates, polyoxyalkylene
triglycerides, alkylpolyglycosides, alkenyl succinic anhydride
derivatives, polyvinylpyrrolidones, perfluoroalkyl acids
derivatives, and mixtures thereof; and to the use of such a
concentrate suspension as a pesticide.
Inventors: |
Aven, Michael; (Mainz,
DE) |
Correspondence
Address: |
Legal Department, NOL/P
BASF Corporation
3000 Continental Drive - North
Mount Olive
NJ
07828-1234
US
|
Assignee: |
BASF Aktiengesellschaft
Ludwigshafen
DE
|
Family ID: |
26815555 |
Appl. No.: |
10/091295 |
Filed: |
March 5, 2002 |
Related U.S. Patent Documents
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Application
Number |
Filing Date |
Patent Number |
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10091295 |
Mar 5, 2002 |
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09484563 |
Jan 18, 2000 |
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6383984 |
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60117708 |
Jan 29, 1999 |
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Current U.S.
Class: |
504/348 ;
504/365 |
Current CPC
Class: |
A01N 25/04 20130101 |
Class at
Publication: |
504/348 ;
504/365 |
International
Class: |
A01N 035/00; A01N
025/04; A01N 025/16 |
Claims
What is claimed is:
1. An aqueous, concentrated suspension (SC) for crop protection
active compounds which comprises (a) 50 to 400 g/L of at least one
crop protection active compound; (b) 50 to 500 g/L of at least one
adjuvant, which has the capability of reducing the surface tension
in the spray dilution to 40 mN/m or lower and does not promote the
particle growth of the crop protection active compound; (c) at
least one surfactant selected from the groups (c1) and (c2): (c1) 5
to 75 g/L of one or more non-ionic dispersants, and (c2) 10 to 100
g/L of one or more anionic dispersants, (d) up to 150 g/L of one or
more anti-freezing agents, (e) up to 25 g/L of one or more
defoamers, (f) up to 25 g/L of one or more preservatives, and (g)
200 to 800 g/L of water, wherein the adjuvant (b) is selected from
the group consisting of amine alkoxylates, polyoxyalkylene
triglycerides, alkylpolyglycosides, alkenyl succinic anhydride
derivatives, polyvinylpyrrolidones, perfluoroalkyl acids
derivatives, and mixtures thereof.
2. A SC in accordance with claim 1 wherein the crop protection
active compound (a) comprises a benzoylbenzene of formula I
4wherein R.sup.1 represents a halogen atom, an optionally
substituted alkyl, alkanoyloxy or alkoxy group; or a hydroxy group,
R.sup.2 represents a halogen atom, an optionally substituted alkyl
group, R.sup.3 represents a halogen atom or an optionally
substituted alkyl group, m is 0 or an integer of 1 to 3; R.sup.4
independently represents a halogen atom, an optionally substituted
alkyl or alkoxy group or a nitro group; R.sup.5 represents an
optionally substituted alkyl group; R.sup.6 represents a halogen
atom, a cyano, carboxy, hydroxy or nitro group or an optionally
substituted alkyl, alkoxy, alkenyl, alkylthio, alkylsulphinyl,
alkylsulphonyl or amino group; R.sup.7 represents a halogen atom or
a nitro group, an optionally substituted alkyl, alkoxy, alkenyloxy,
alkynyloxy, alkylthio, cycloalkyl, cycloalkyloxy, aryloxy group;
and n is 0,1 or 2.
3. A SC in accordance with claim 1 comprising 75 to 450 g/L of at
least one alkylpolyglycoside, at least one amine ethoxylate or at
least one alkenyl succinic anhydride diglucamide.
4. A SC in accordance with claim 1 comprising 55 to 150 g/L of at
least cone perfluoro(C.sub.6-18)alkylphosphonic acid,
perfluoro(C.sub.6-18)alky- l-phosphiric acid or a mixture
thereof.
5. A SC in accordance with claim 1 wherein the ratio of the crop
protection active compounds (a) to said adjuvant (b) is between 1:
0.5 and 1:100, preferably between 1:0.75 and 1:10.
6. A SC in accordance with claim 1 comprising in addition to the
components (a) to (g): (h) 0.1 to 30 g/l of at least one
thickener.
7. A SC in accordance with claim 1 wherein the non-ionic dispersant
(c1) is a block copolymer which consists of a polyoxypropylene and
polyoxyethylene moieties.
8. A SC in accordance with claim 1 wherein the anionic dispersant
(c2) is an amino sulfonate or an alkali or earth alkali
sulfonate.
9. A SC in accordance with claim 1 wherein the anti-freezing agent
(d) is an alkyleneglycol derivative.
10. A SC in accordance with claim 1 wherein the defoamer (e) is a
silicone derivative.
11. A method for the enhancement of the efficacy of crop protection
active compounds which comprises combining said crop protection
active compounds with an effective amount of at least one adjuvant,
which has the capability of reducing the surface tension in an
aqueous spray dilution to 40 mN/m or lower being selected from the
group consisting of amine alkoxylates, polyoxyalkylene
triglycerides, alkylpolyglycosides, alkenyl succinic anhydride
derivatives, polyvinylpyrrolidones, perfluoroalkyl acids
derivatives, and mixtures thereof.
12. A method for combating a fungus at a locus which comprises
diluting a formulation as claimed in any of the claims 1 to 10 with
water and treating said locus with the obtained diluted aqueous
formulation.
Description
BACKGROUND OF THE INVENTION
[0001] This invention concerns an aqueous, storage stable
suspension concentrate (SC) for crop protection active compounds, a
method for the manufacture of such suspensions, and their use for
combating pests.
[0002] As a rule inert ingredients must be used to bring crop
protection active compounds, for example fungicidal compounds, into
such a form that the user can apply them either as such or after
dilution with water. The correct choice of suitable inert
ingredients for the formulation often determines to a significant
extent whether the active ingredient can display its full efficacy
after application. When selecting suitable ingredients to insure
the physicochemical stability of the formulation, it must be taken
into account that not every active ingredient can be processed into
any given formulation type without losses in stability and/or
efficacy.
[0003] The efficacy of the active components can often be improved
by addition of other ingredients such as adjuvants. An adjuvant is
defined here as a substance which can increase the biological
activity of an active ingredient but is not itself significantly
biologically active. The adjuvant can either be included in the
formulation or can be added to the spray tank together with the
formulation containing the active ingredient. In view of an easy
and safe handling and dosing of these adjuvants by the end-user and
in view of avoiding unnecessary packing material, it is desirable
to develop concentrated formulations which already contain such
adjuvants.
SUMMARY OF THE INVENTION
[0004] The present invention relates to an aqueous, concentrated
suspension (SC) for crop protection active compounds which
comprises
[0005] (a) 50 to 400 g/L of at least one crop protection active
compound;
[0006] (b) 50 to 500 g/L of at least one adjuvant, which has the
capability of reducing the surface tension in the spray dilution to
40 mN/m or lower and does not significantly promote the particle
growth of the crop protection active compound in the stored SC;
[0007] (c) at least one surfactant selected from the groups (c1)
and (c2):
[0008] (c1) 5 to 75 g/L of one or more non-ionic dispersants,
and
[0009] (c2) 10 to 100 g/L of one or more anionic dispersants,
[0010] (d) up to 150 g/l of one or more anti-freezing agents,
[0011] (e) up to 25 g/L of one or more defoamers,
[0012] (f) up to 25 g/L of one or more preservative, and
[0013] (g) 200 to 800 g/L of water,
[0014] wherein the adjuvant (b) is selected from the group
consisting of amine alkoxylates, polyoxyalkylene triglycerides,
alkylpolyglycosides, alkenyl succinic anhydride derivatives,
polyvinylpyrrolidones, perfluoroalkyl acids derivatives, mixtures
thereof and mixtures with diluents. Another aspect of the present
invention is a process for the preparation of such a SC which
comprises
[0015] (1) air-milling of 50 to 400 g/L of one or more crop
protection active compounds (a) optionally in the presence of one
or more anionic dispersants (c2), and/or a milling aid such as
kaolin or silica, and (2) mixing all the components (a) to (g) in a
dissolver.
[0016] Furthermore, the invention relates to a method for the
control of pests at a locus which comprises diluting a SC according
to the invention with water and treating the said locus with the
obtained diluted formulation.
[0017] Those and other objects and features of the invention will
become more apparent from the detailed description set forth
hereinbelow.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
[0018] It has now been found that, surprisingly, stable aqueous SC
formulation comprising one or more crop protection active compounds
(a) and one or more adjuvants (b) in combination with one or more
non-ionic dispersants (c1) and/or one or more anionic dispersants
(c2) and can be prepared
[0019] The biological activity of the active ingredients (a) can be
increased by including the adjuvants (b) in the spray dilution or
directly in the formulation. However, according to the present
invention the adjuvants (b) are incorporated into the concentrated
formulation.
[0020] The term pests as used hereinabove and hereinbelow includes
but is not limited to plant pathogens, insects and weeds.
[0021] In principle all crop protection active compounds can be
used for the non-aqueous concentrated suspensions according to the
invention. However, solid crop protection active compounds are
preferred.
[0022] As a rule solid crop protection active compounds are used
which have a low solubility in water. A solubility of less than 10
g/L, in particular less than 5 g/L in water is preferred.
[0023] The compositions of this invention can be applied to the
plants or their environment with other active substances. These
active substances (a) can be either fertilizers or agents which
donate trace elements or other preparations which influence plant
growth. However, they can also be selective herbicides,
insecticides, fungicides, bactericides, nematicides, algicides,
molluscicides, rodenticides, virucides, compounds inducing
resistance into plants, biological control agents such as viruses,
bacteria, nematodes, fungi and other microorganisms, repellents of
birds and animals, and plant growth regulators, or mixtures of
several of these preparations.
[0024] The active ingredients, which are provided in the form of
the aqueous SC formulation according to the invention, include all
suitable biologically active compounds for plant protection,
preferably fungicides, herbicides, insecticides, acaricides,
nematicides and repellents, in particular fungicides. Active
ingredients which are solid at room temperature are preferred, in
particular those with a melting point of higher than 50.degree.
C.
[0025] Mixtures of different biologically active compounds can have
a broader spectrum of activity than a single compound alone.
Furthermore, these can exhibit a synergistic effect compared with
the single active ingredients. In a preferred embodiment, the
formulation of the present invention can be used with a mixture of
active ingredients, in the case of mixtures one of the active
ingredients can be dissolved in the continuous phase of the SC
formulation according to the invention.
[0026] Preferred fungicides for use in the compositions of the
present invention are the commercially available compounds selected
from the group consisting of:
[0027] AC 382042, anilazine, azoxystrobin, benalaxyl, benomyl,
binapacryl, bitertanol, blasticidin S, Bordeaux mixture,
bromuconazole, bupirimate, captafol, captan, carbendazim, carboxin,
carpropamid, chlorbenzthiazon, chlorothalonil, chlozolinate,
copper-containing compounds such as copper oxychloride, and copper
sulfate, cycloheximide, cymoxanil, cypofuram, cyproconazole,
cyprodinil, dichlofluanid, dichlone, dichloran, diclobutrazol,
diclocymet, diclomezine, diethofencarb, difenoconazole,
diflumetorim, dimethirimol, dimethomorph, diniconazole, dinocap,
ditalimfos, dithianon, dodemorph, dodine, edifenphos,
epoxiconazole, etaconazole, ethirimol, etridiazole, famoxadone,
fenapanil, fenamidone, fenarimol, fenbuconazole, fenfuram,
fenhexamid, fenpiclonil, fenpropidin, fenpropimorph, fentin, fentin
acetate, fentin hydroxide, ferimzone, fluazinam, fludioxonil,
flumetover, fluquinconazole, flusilazole, flusulfamide, flutolanil,
flutriafol, folpet, fosetyl-aluminium, fuberidazole, furalaxyl,
furametpyr, guazatine, hexaconazole, IKF-916, imazalil,
iminoctadine, ipconazole, iprodione, isoprothiolane, iprovalicarb,
kasugamycin, KH-7281, kitazin P, kresoxim-methyl, mancozeb, maneb,
mepanipyrim, mepronil, metalaxyl, metconazole, methfuroxam, MON
65500, myclobutanil, neoasozin, nickel dimethyldithiocarbamate,
nitrothalisopropyl, nuarimol, ofurace, organo mercury compounds,
oxadixyl, oxycarboxin, penconazole, pencycuron, phenazineoxide,
phthalide, polyoxin D, polyram, probenazole, prochloraz,
procymidione, propamocarb, propiconazole, propineb, pyrazophos,
pyrifenox, pyrimethanil, pyroquilon, pyroxyfur, quinomethionate,
quinoxyfen, quintozene, spiroxamine, SSF-126, SSF-129,
streptomycin, sulfur, tebuconazole, tecloftalame, tecnazene,
tetraconazole, thiabendazole, thifluzamide, thiophanate-methyl,
thiram, tolclofosmethyl, tolylfluanid, triadimefon, triadimenol,
triazbutil, triazoxide, tricyclazole, tridemorph, trifloxystrobin,
triflumizole, triforine, triticonazole, validamycin A, vinclozolin,
XRD-563, zarilamid, zineb, ziram.
[0028] In addition, the formulations according to the invention may
contain at least one compound of the following classes of
biological control agents such as viruses, bacteria, nematodes,
fungi, and other microorganisms which are suitable for the control
of insects, weeds or plant diseases, or to induce host resistance
in the plants. Examples of such biological control agents are:
Bacillus thuringiensis, Verticillium lecanii, Autographica
californica NPV, Beauvaria bassiana, Ampelomyces quisqualis,
Bacilis subtilis, Pseudomonas fluorescens, Steptomyces
griseoviridis and Trichoderma harzianum.
[0029] Moreover, the formulations according to the invention may
contain at least one chemical agent that induces the systemic
acquired resistance in plants such as, for example, isonicotinic
acid or derivatives thereof,
2,2-dichloro-3,3-dimethylcylopropylcarboxylic acid or BION.
[0030] Also preferred compositions can include derivatives of
benzoylbenzenes which are disclosed, for example, by European
Patent Applications EP 0 727 141, in particular the compounds of
formula I 1
[0031] wherein
[0032] R.sup.1 represents a halogen atom, an optionally substituted
alkyl, alkanoyloxy or alkoxy group; or a hydroxy group,
[0033] R.sup.2 represents a halogen atom, an optionally substituted
alkyl group,
[0034] R.sup.3 represents a halogen atom or an optionally
substituted alkyl group,
[0035] m is 0 or an integer of 1 to 3;
[0036] R.sup.4 independently represents a halogen atom, an
optionally substituted alkyl or alkoxy group or a nitro group;
[0037] R.sup.5 represents an optionally substituted alkyl
group;
[0038] R.sup.6 represents a halogen atom, a cyano, carboxy, hydroxy
or nitro group or an optionally substituted alkyl, alkoxy, alkenyl,
alkylthio, alkylsulphinyl, alkylsulphonyl or amino group;
[0039] R.sup.7 represents a halogen atom or a nitro group, an
optionally substituted alkyl, alkoxy, alkenyloxy, alkynyloxy,
alkylthio, cycloalkyl, cycloalkyloxy, aryloxy group; and
[0040] n is 0,1 or 2.
[0041] Preferred are those compounds of formula I wherein R.sup.1
represents a, chlorine atom or a methyl, methoxy or a hydroxy group
and R.sup.2 represents a chlorine atom or a methyl group; R.sup.3
represents a halogen atom; R.sup.4 and R.sup.5 each represents a
methyl group; and R.sup.6 and R.sup.7 each represent a C.sub.1-6
alkoxy or a benzyloxy group; m is 0 or 1 and n is 1.
[0042] Particularly preferred are those compounds of formula I
wherein
[0043] R.sup.1 represents a methoxy group; most preferred are the
following benzoylbenzenes:
[0044] 6'-butoxy-2,6-dichloro-4',5'-dimethoxy-2'-methylbenzophenone
(coded
BB-1);2,6-dichloro-4',5'-dimethoxy-6'-(2-fluorobenzyloxy)-2'-methylbenzop-
henone (coded BB-2);6'-benzyloxy-4',5'-dimethoxy-2,6-dimethyl
2'-methylbenzophenone (coded BB-3); and
3-bromo-2',6-dimethyl-2,4',5',6'-- tetramethoxybenzophenone (coded
BB-4).
[0045] Preferred herbicides are the commercially available
compounds selected from the group consisting of:
[0046] 2,4 D, 2,4-DB, 2,4-DP, acetochlor, acifluorfen, alachlor,
alloxydim, ametrydidne, amidosulfuron, asulam, atrazin,
azimsulfuron, benfuresate, bensulfuiron, bentazon, bifenox,
bromobutide, bromoxynil, butachlor, cafenstrole, carfentrazone,
chloridazon, chlorimuron, chlorpropham, chlorsulfuron,
chlortoluron, cinmethylin, cinosulfuron, clomazone, clopyralid,
cyanazin, cycloate, cyclosulfamuron, cycloxydim, daimuron,
desmedipham, di-methazone, dicamba, dichlobenil, diclofop,
diflufenican, dimethenamid, dithiopyr, diuron, eptame, esprocarb,
ethiozin, fenoxaprop, flamprop M-isopropyl, flamprop-M-methyl
fluazifop, fluometuron, fluoroglycofen, fluridone, fluroxypyr,
flurtamone, fluthiamid, fomesafen, glufosinate, glyphosate,
halosafen, haloxyfop, hexazinone, imazamethabenz, imazamethapyr,
imazamox, imazapyr, imazaquin, imazethapyr, ioxynil, isoproturon,
isoxaben, isoxaflutole, lactofen, MCPA, MCPP, mefenacet,
metabenzthiazuron, metamitron, metazachlor, methyidirnron,
metolachlor, metribuzin, metsulfuron, molinate, nicosulfuion,
norflurazon, oryzalin, oxadiargyl, oxasulfuron, oxyfluorfen,
pendimethalin, picloram, pretilachlor, propachlor, propanil,
prosulfocarb, pyrazosulfuron, pyridate, qinmerac, quinchlorac,
quizalofopethyl, sethoxydim, simetryne, sulcotrione, sulfentrazone,
sulfosate, terbutryne, terbutylazin, thiameturon, thifensulfuron,
thiobencarb, tralkoxydim, triallate, triasulfuron, tribenuron,
triclopyr, trifluralin.
[0047] Furthermore preferred are the derivatives of
aryloxypicolineamides which are disclosed, for example, by European
Patent Application EP-A-0 447 004, in particular,
N-(4-fluorophenyl) 6-(3-trifluoromethylphenoxy)-p-
yrid-2-ylcarboxamide having the proposed common name
picolinafen.
[0048] Examples of insecticidal compounds are alpha-cypermethrin,
benfuracarb, BPMC, buprofezine, carbosulfan, cartap,
chlorfenvinphos, chlorpyrifos-methyl, cycloprothrin, cypermethrin,
esfenvalerate, ethofenprox, fenpropathrin, flucythrinate,
flufenoxuron, hydramethylnon, imidacloprid, isoxathion, MEP, MPP,
nitenpyram, PAP, permethrin, propaphos, pymetrozine, silafluofen,
tebufenozide, teflubenzuron, temephos, terbufos, tetrachlorvinphos
and triazamate.
[0049] Liquid active ingredients such as for example fenpropimorph
can be formulated according to the present invention by adsorbing
the active ingredient onto a carrier.
[0050] As a rule the non-aqueous SC according to the invention
comprises by 50 to 400 g/L, preferably 75 to 375 g/L, in particular
80 to 350 g/L of one or more crop protection active compounds.
[0051] The adjuvants (b) are preferably selected from the group
consisting of amine alkoxylates, alkylpolyglycosides, alkenyl
succinic acid derivatives, polyvinylpyrrolidones, perfluoroalkyl
acid derivatives, in particular,
perfluoro(C.sub.6-18)alkylphosphonic acids,
perfluoro(C.sub.6-18)alkyl-phosphinic acids,
perfluoro(C.sub.3-20)alkyl esters of polymeric carboxylic acids,
mixtures thereof and mixtures with diluents.
[0052] The aliphatic moieties of the amines ethoxylates may be
straight-chained or branched. Preferably these compounds correspond
to a oligomer of the following formula
H.sub.2n+C.sub.n--N[(CH.sub.2CH.sub.2O).sub.xH].sub.2,
[0053] in which
[0054] n is an integer from 9 to 20, in particular 12 to 18;
[0055] x is an integer from 2 to 14, in particular 2 to 10.
[0056] Of particular interest are those polyalkoxylated aliphatic
amines, which are liquids at temperatures down to at least
20.degree. C. having a viscosity of 100 to 1000 mPa.multidot.s at
25.degree. C. The compounds which are commercially available under
the trademark Berol.RTM. (Akzo-Nobel), in particular Berol.RTM. 381
has been proven to be especially advantageous.
[0057] The alkylpolyglycosides (APG) are obtainable from a
acid-catalyzed Fischer reaction of starch or glucose syrups with
fatty alcohols, in particular C.sub.8-18 alcohols. Most preferred
are C.sub.8-10 and C.sub.12-14 alkylpolyglycosides having a degree
of polymerization of 1.3 to 1.6., in particular 1.4 or 1.5. These
APGs are commercially available for example under the tradenames
Agrimul.RTM. and Glucopon.RTM., which are APGs diluted with water,
in particular Glucopon.RTM. 215CSUP or Glucopon.RTM. 600CSUP from
Henkel KGaA or Atplus.RTM.430, Atplus.RTM.435, Atplus.RTM.450,
Atplus.RTM.469, which are APGs diluted with hydrotrope agents, from
Uniqema (formerly ICI Surfactants).
[0058] Preferred polyoxyalkylene triglycerides are as a rule
obtainable by alkoxylaltion of triglycerides. The alkoxylation of
triglycerides results in mixtures of compounds with one to three
glyceride side chains having 9-24, preferably 12-22 and in
particular 14-20 C-atoms, in particular with ethyleneoxide. The
aliphatic moieties of the said triglycerides may be
straight-chained or branched. Preferably these compounds correspond
to mixed oligomers resulting from the alkoxylation of castor or
canola oil. Most preferred are castor and canola oil ethoxylate
having 20 to 50, in particular 30 or 40 ethyleneoxide units, which
are commercially available under the tradename Eumulgin.RTM., in
particular Eumulgin.RTM. RT40.
[0059] Preferred alkenyl succinic acid derivatives are compounds of
formula 2
[0060] or salts thereof, in which
[0061] R represents a C.sub.4-18 alkyl group, in particular a
hexyl, heptyl or dodecyl group;
[0062] X represents O or N(C.sub.1-6 alkyl)
[0063] P.sup.1 and P.sup.2 each represent a polymer back bone
selected from the formulae (1) and(2): 3
[0064] R' represents a hydrogen atom or an alkyl group,
[0065] x represents 0 or an integer from 1 to 10, and
[0066] y represents an integer from 1 to 10.
[0067] Preferred are alkenyl succinic acid diglucamides, alkenyl
succinic acid alkcxylates and alkenyl succinic acid
alkylpolyglykosides, in particular Atplus.RTM. ADG 1001 and
Atplus.RTM. ADG 1201 obtainable from Uniqema.
[0068] Preferred polyvinylpyrrolidones (PVP) have an average
molecular weight of more than 6000 g/mol, in particular 7000 to
9000 g/mol, most preferred is a PVP having an average molecular
weight of 8000 g/mol which is available as Agrimer.RTM. 15 from
ISP.
[0069] As a rule the aqueous SC according to the invention
comprises 50 to 500 g/L, preferably 75 to 450 g/L, in particular
150 to 400 g/L of one or more adjuvants (b).
[0070] The non-ionic dispersants (c1) are preferably liquid
polyalkoxylated aliphatic fatty acids or straight-chained alcohols.
These adjuvants are as a rule obtainable by alkoxylation of fatty
acids or straight-chained alcohols having 9-24, preferably 12-22
and in particular 14-20 C-atoms, with alkyleneoxide having 2-6,
preferably 2-3 C-atoms, in particular with a mixture of
ethylenoxide and propyleneoxide. Preferably these compounds
correspond to mixed random or block oligomers of the following
formula
H.sub.2n+1C.sub.n--(CO).sub.r--O(CH.sub.2CH.sub.2O).sub.x(C.sub.2H.sub.3(C-
H.sub.3)O).sub.yH,
[0071] in which
[0072] r is 0 or 1, and the average of the indexes given is as
follows:
[0073] n is an integer from 9 to 20, in particular 15 to 19;
[0074] x is an integer from 4 to 22, in particular 5 to 18; and
[0075] y is an integer from 6 to 12, in particular 7 to 10.
[0076] Of particular interest are those polyalkoxylated aliphatic
alcohols, which are liquids at temperatures down to at least
20.degree. C. having a viscosity of 30 to 100, in particular 50 to
80 mPa.multidot.s at 25.degree. C. The compounds which are
commercially available under the trademark Synperonic.RTM.
(Uniqema), in particular Synperonic.RTM. 91-6.
[0077] In preferred embodiment of the present invention the
non-ionic dispersant (c1) is a fatty acid or phenol. These
dispersants are as a rule obtainable by alkoxylation fatty acids or
phenols.
[0078] Preferred dipersants (c1) are for example Arkopal.RTM.-type
alkylarylethoxylates (Clariant GmbH former Hoechst AG) or
Genapol.RTM.-type (Clariant GmbH former Hoechst AG)
alkanoylethoxylates.
[0079] Another preferred dispersant (c1) is a nonylphenolethoxylate
for example Synperonic.RTM. NP-4, which is commercially available
from Uniqema.
[0080] Furthermore preferred dispersants (c1) are are
polyethyleneoxide-polypropyleneoxide block-copolymers of
formula
HO--(CH.sub.2CH.sub.2O).sub.x(C.sub.2H.sub.3(CH.sub.3)O).sub.y--(CH.sub.2C-
H.sub.2O).sub.zH,
[0081] in which
[0082] the sum of x and z is an integer from 1 to 80, in particular
2 to 75; and
[0083] y is an integer from 10 to 70, in particular 20 to 60.
[0084] Most preferred are the Pluronic.RTM.-type block-copolymers,
which are available from BASF AG, in particular Pluronic.RTM. PE
10500.
[0085] As a rule the aqueous SC according to the invention
comprises 5 to 75 g/L, preferably 7.5 to 40 g/L, in particular 8 to
30 g/L of one or more non-ionic dispersants (c1).
[0086] The anionic dispersant (c2) is as a rule an alkali or earth
alkali sulfonate, which includes also concentrated mixtures of such
an alkali or earth alkali sulfonate with a polar diluent such as an
alcohol an aromatic hydrocarbon, preferably butanol, 2-ethylhexanol
or Solvesso.RTM. 200. Such a mixture preferably consists of 40 to
90 wt.-% of at least one alkali or earth alkali sulfonate and 10 to
60 wt.-% of an organic diluent. Ammonium, alkali and earth alkali
alkylbenzene sulfonates are preferred, in particular calcium
dodecylbenzene sulfonates such as Rhodocal.RTM. 70/B (Rhodia,
formerly Rhne-Poulenc) or Phenylsulfonat CA100 (Clariant GmbH,
formerly Hoechst AG) or isopropylammonium dodecyl benzene sulfonate
such as Atlox.RTM. 3300B (Uniqema). In particularly preferred
embodiment of this invention the anionic dispersant is an
alkylnaphthalene sulfonic acid formaldehyde condensate such as
Morwet.RTM. D425 (Witco Corporation, USA).
[0087] As a rule the aqueous SC according to the invention
comprises 10 to 100 g/L, preferably 10 to 80 g/L, in particular 15
to 75 g/L of one or more anionic dispersants.
[0088] The appropriate relative amounts of active ingredient (a)
and the adjuvant (b) lie, in accordance with the invention, between
1:0.5 and 1:100, preferably between 1:0.75 and 1:10 and, in
particular, between 1:1 and 1:5. In general and within certain
limits, the pesticidal efficacy can be enhanced to a higher degree
by the addition of larger amounts of the adjuvant (b) as is shown
in the experimental results described below.
[0089] Recommended doses for various applications are known for the
crop protection active compounds (a) where the efficacy can be
enhanced in accordance with the invention. Addition of the
adjuvants suggested here can (depending on the active ingredient,
the adjuvant and their amounts) reduce the amount of active
ingredient per hectare required in these recommendations by half or
more, whereby it becomes possible to control additional diseases at
reasonable doses.
[0090] An important advantage is the rapid onset and the high
persistency of activity on use of the new additives. This enlarges
the period for application of the pesticide and makes its use more
flexible.
[0091] The pesticidal formulations according to the present
invention can be used protectively and curatively.
[0092] As a rule the aqueous SC according to the invention
comprises 200 to 800 g/L, preferably 300 to 700 g/L, in particular
350 to 650 g/L of water.
[0093] In a particularly preferred embodiment according to this
invention the non-aqueous SC essentially consists of
[0094] (a) 75 to 350 g/L, preferably 100 to 300 g/L of one or more
crop protection active compounds, in particular a compound of
formula I;
[0095] (b) 75 to 450 g/L, preferably 100 to 300 g/L of one or more
adjuvants selected from the group consisting of alkoxylated amines,
alkylpolyglycosides and alkenyl succinic anhydride
diglucamides.
[0096] (c) at least one surfactant selected from the groups (c1)
and (c2):
[0097] (c1) 5 to 25 g/L, preferably 7.5 to 20 g/L of one or more
non-ionic dispersant;
[0098] (c2) 10 to 50 g/L, preferably 15 to 40 g/L of one or more
anionic dispersant;
[0099] (d) 0 to 75 g/L, preferably 0.5 to 60 g/L of an
anti-freezing agent;
[0100] (e) 0 to 5 g/L, preferably 0.5 to 5 g/L of a defoamer;
[0101] (f) up to 10 g/L, preferably 0.5 to 5 g/L of one or more
preservatives,
[0102] (g) 300 to 700 g/L water, and
[0103] (h) up to 30 g/L, preferably 0.5 to 15 g/L of one or more
structure agents, preferably Xanthan gum such as Rhodopol.RTM. 23
from Rhodia and/or hydrated silicates such as Attagel.RTM. 50 from
Engelhard Corp. or Veegum.RTM. T from Vanderbilt Export Corp.
[0104] The adjuvants (b) according to the invention, the pesticidal
active compounds (a) and dispersants (c) and water and optionally
one or more anti-freezing agents (d) and/or defoamers are processed
to suspension concentrates according to the invention by
well-established procedures. These procedures include intensive
mixing and/or milling of the active ingredients with the other
substances, such as solvents, wetting agents, and adjuvants. The
form of application such as spraying, atomizing, dispersing or
pouring may be chosen like the compositions according to the
desired objectives and the given circumstances.
[0105] Suspension concentrates according to the present invention
are usually produced so as to obtain a stable, non-sedimenting
flowable product and usually contain 5 to 40% w/v active
ingredient, 5 to 50% w/v adjuvant, 0.5 to 17.5% w/v of dispersing
agents, 0 to 15% w/v antifreezing agent, 0 to 10% w/v of suspending
agents such as protective colloids and thixotropic agents, 0 to
2.5% w/v preservatives, 0 to 10% w/v of other additives such as
defoamers, corrosion inhibitors, stabilizers, penetrants and
stickers, and an organic liquid in which the active ingredient is
substantially insoluble.
[0106] Preferred anti-foam agents (e) are silica,
polydialkylsiloxanes and mixtures thereof, in particular
Rhodorsil.RTM. 416, Rhodorsil.RTM. 426R or Rhodosil.RTM. 454 from
Rhodia. Particularly preferred is a combination of
polydimethylsiloxanes and
perfluoroalkylphosphonic/perfluoroalkylphosp- hinc acids.
[0107] The term preservatives (f) includes chemical stabilizers to
prevent decomposition of the compound of formula I during storage
such as alkaline earth and transition metal sulfates and biocides,
in particular bactericides such as Proxel.RTM. GXL (Zeneca)
[0108] In a preferred embodiment the crop protection compound (a)
is air-milled optionally in the presence of dispersant (c2) before
admixing the components (b) to (g) and optionally (h).
[0109] The finished non-aqueous suspension concentrates according
to the invention are stable in storage, i.e. even on storage over a
relatively long period. Although phase separation may occur upon
storage due to sedimentation of the active ingredient, no
aggregates are formed. The SCs according to the present invention
allow the inclusion of high loadings of one or more adjuvants in a
one-pack formulation with a pesticide and, therefore, offer the
advantage of an optimized and easy-to-use formulation of the crop
protection active compound. The separate addition of an adjuvant by
the end-user before application has therefore become
unnecessary.
[0110] Aqueous dispersions and emulsions, for example compositions
obtained by diluting the formulated product according to the
invention with water, also lie within the scope of the
invention.
[0111] As a commodity the compositions may preferably be in a
concentrated form whereas the end user generally employs diluted
compositions. The compositions may be diluted to a concentration
down to 0.001% of active ingredient. The doses are usually in the
range of 0.01 to 10 kg a.i./ha.
[0112] For a more clear understanding of the invention, specific
examples are set forth below. These examples are merely
illustrations and are not to be understood as limiting the scope
and underlying principles of the invention in any way. Various
modifications of the invention in addition to those shown and
described herein will become apparent to those skilled in the art
from the following examples and foregoing description. Such
modifications are also intended to fall within the scope of the
appended claims.
[0113] Examples of aqueous suspension concentrates according to the
invention are shown in the following examples A to M:
IDENTITY OF INGREDIENTS USED IN EXAMPLES
[0114]
1 Name Function Identity Agrimer 15 (ISP) Adjuvant
Polyvinylpyrrolidone having a molecular weight of 8,000 g/mol
Agrimer 30 (ISP) Adjuvant Polyvinylpyrrolidone having a molecular
weight of 38,000 g/mol Agrimer VA7W (ISP) Adjuvant Polyvinylacetate
polyvinylpyrrolidone copolymer Agsol EX 8 (ISP) Adjuvant
N-octylpyrrolidone Arkopal N-80 (Clariant) Adjuvant Nonylphenol
polyglycolether (8 EO) Atplus 450 .RTM. (Uniqema) Adjuvant
Alkylpolysaccharide blend Atplus 469 .RTM. (Uniqema) Adjuvant
Alkylpolysaccharide blend Atplus 430 .RTM. (Uniqema) Adjuvant
Alkylpolysaccharide blend Atplus 435 .RTM. (Uniqema) Adjuvant
Alkylpolysaccharide blend Atplus MBA 11-7 .RTM. Adjuvant branched
alcohol ethoxylate (Uniqema) Berol 381 (Akzo-Nobel) Adjuvant Amine
ethoxylate Bevaloid 6338 (Rhodia) Defoamer Emulsion of inert
polymeric substances Eumulgin RT40 (Henkel) Adjuvant Castor oil
ethoxylate (40 EO) Fluorad FC-430 (3M) Adjuvant Perfluoroaliphatic
polymeric ester Fluorad FC-129 (3M) Adjuvant
Perfluoroalkylsulfonate Fluowet PL80 (Clariant) Adjuvant 80%
mixture of perfluorinated alkylphosphinic/alkylphos- phonic acids
Geropon T36 (Rhodia) Dispersant Sodium polycarboxylate Glucopon
600CSUP Adjuvant C.sub.12-14 alkylpolyglycoside in water (Henkel)
Glucopon 215CSUP Adjuvant C.sub.8-10 alkylpolyglycoside in water
(Henkel) Morwet D425 (Witco) Dispersant Alkylnaphthalene sulfonic
acid formaldehyde condensate Pluronic PE10500 (BASF) Dispersant
Ethyleneoxide/propyleneoxide block copolymer Proxel GXL (Zeneca)
Biocide aqueous dipropylene glycol solution containing 20%
1,2-benzisothiazoli-3- one Rhodopol 23 (Rhodia) Structure agent
heteropolysccharide having a molecular weight of about 2,000,000
g/mol Atplus ADG 1001 Adjuvant C.sub.12 alkenyl succinic anhydride
(Uniqema) diglucamide Atplus ADG 1201 Adjuvant 50% C.sub.12 alkenyl
succinic anhydride (Uniqema) diglucamide in propylene glycol
Silicon Antifoam TP 20 Defoamer Polydimethylsiloxane emulsion (OSi
Specialities GmbH) Silica FK 320 (Degussa Defoamer Amorphous silica
AG) Rhodorsil 426 R (Rhodia) Defoamer polydimethylsiloxane emulsion
Soprophor FL (Rhodia) Dispersant Ammonium polyarylphenyl ether
phosphate Supragil MNS/90 (Rhodia) Dispersant Sodium naphthalene
sulfonate formaldehyde condensate Vanisperse CB (Lignotech,
Dispersant Sodium ligninsulfonate Norway) Veegum T (Vanderbilt Exp.
Structure agent Hydrated magnesium aluminium silicate Corp., USA)
Synperonic 91-6 Adjuvant alcohol ethoxylate (Uniqema)
Examples 1 to 3
[0115] The following SC formulations according to the invention are
prepared by mixing the ingredients with the exception of the
structure agent, the antifreeze agent and the adjuvant in a
dissolver. Subsequently, the suspension is milled using a
Dyno-mill. The adjuvant is then stirred into the milled suspension.
Subsequently, a suspension of the structure agent and the
antifreeze agent is produced and also stirred into the milled
suspension.
[0116] Alternatively, the structure agent can be added to the
un-milled suspension and milled together with the active
ingredient.
[0117] The obtained SC formulations are compared with similar SC
formulations (C-1 and C-2), in which the adjuvant (b) was replaced
by n-octylpyrrolidone or an alcohol ethoxylate (Synperonic
91-6)
[0118] The following formulations are obtained:
2 Concentration (g/L) Example Ingredient 1 2 3 C-1 C-2 BB-4 200 200
200 200 200 Morwet D425 20 20 20 20 20 Pluronic PE 10500 10 10 10
10 10 Proxel GXL 2 2 2 2 2 Rhodorsil 426R 2 2 2 2 2 Rhodopol 23 3 3
3 3 3 Propylene glycol 50 50 50 50 50 Agsol Ex8 -- -- -- 50 --
Synperonic 91-6 -- -- -- 200 250 Atplus 450 250 -- -- -- Atplus 469
250 -- -- -- Atplus ADG 1201 -- -- 250 -- -- Water to 1 L to 1 L to
1 L to 1 L to 1 L
[0119] The density, and the particle size distribution upon storage
for two weeks at room temperature (RT), at 40.degree. C.
(2W40.degree. C.) and at 54.degree. C. (2W54.degree. C.) of the SC
formulations are shown in the following table I:
3 TABLE I Example Properties 1 2 3 C-1 C-2 Density [g/mL] 1.106
1.121 1.116 1.078 1.085 Particle size .times..sub.10 [.mu.m] 0.74
0.74 0.76 0.88 0.74 distribution .times..sub.50 [.mu.m] 1.92 1.92
1.98 3.19 1.95 (RT) .times..sub.90 [.mu.m] 4.83 4.78 5.00 6.77 4.77
Particle size .times..sub.10 [.mu.m] 0.73 0.74 0.73 1.04 0.82
distribution .times..sub.50 [.mu.m] 1.87 1.88 1.89 3.73 2.28 (2W40
.degree. C.) .times..sub.90 [.mu.m] 4.56 4.50 4.70 7.59 5.44
Particle size .times..sub.10 [.mu.m] 0.74 0.76 0.74 1.39 1.00
distribution .times..sub.50 [.mu.m] 1.90 1.96 1.88 5.07 2.89 (2W54
.degree. C.) .times..sub.90 [.mu.m] 4.51 4.42 4.49 10.16 6.54
[0120] Whereas the particle size distribution of the formulations
according to the present invention is constant upon storage at
elevated temperature, the particle size increases drastically with
alcohol ethoxylates as adjuvants alone or with an
N-alkylpyrrolidone.
Examples 4 to 6
[0121] The following SC formulations according to the invention are
prepared analogously to examples 1 to 3.
[0122] The following formulations are obtained:
4 Concentration (g/L) Example Ingredient 4 5 6 BB-4 200 200 200
Morwet D425 20 20 20 Pluronic PE 10500 10 10 10 Proxel GXL 2 2 2
Rhodorsil 426R 2 2 2 Rhodopol 23 3 3 3 Propylene glycol 50 50 50
Agrimer 15 250 -- -- Fluowet PL80 70 -- Atplus 430 -- -- 250 Water
to 1 L to 1 L to 1 L
[0123] The density, and the particle size distribution upon storage
for two weeks at room temperature (RT), at 40.degree. C.
(2W40.degree. C.) and at 54.degree. C. (2W54.degree. C.) of the SC
formulations are shown in the following table II:
5 TABLE II Example Properties 4 5 6 Density [g/mL] 1.141 1.100
1.121 Particle size X.sub.10 [.mu.m] 0.75 0.76 0.75 distribution
X.sub.50 [.mu.m] 1.98 2.04 1.95 (RT) X.sub.90 [.mu.m] 4.98 5.39
4.02 Particle size X.sub.10 [.mu.m] 0.73 0.76 0.74 distribution
X.sub.50 [.mu.m] 1.86 2.03 1.90 (2W40.degree. C.) X.sub.90 [.mu.m]
4.55 5.26 4.09 Particle size X.sub.10 [.mu.m] 0.75 0.75 0.75
distribution X.sub.50 [.mu.m] 1.92 2.03 1.95 (2W54.degree. C.)
X.sub.90 [.mu.m] 4.55 5.38 4.01
[0124] The particle size distribution of the formulations according
to the present invention is constant upon storage at elevated
temperature.
Example 7
[0125] The following SC formulation according to the invention is
prepared analogously to Examples 1 to 3. It is compared with a
similar SC formulation (C-3), in which the adjuvant (b) was
replaced by a polyoxyethylene sorbitol ester (Tween 80).
[0126] The following formulations are obtained:
6 Concentration (g/L) Example Ingredient 7 C-3 BB-4 200 200 Morwet
D425 20 20 Pluronic PE 10500 10 10 Proxel GXL 2 2 Rhodorsil 426R 2
2 Rhodopol 23 3 3 Propylene glycol 50 50 Atplus 435 250 -- Tween 80
-- 250 Water to 1 L to 1 L
[0127] The density, and the particle size distribution upon storage
at room for two weeks at temperature (RT), 2 at 40.degree. C.
(2W40.degree. C.) and at 54.degree. C. (2W54.degree. C.) of the SC
formulations are shown in the following table III:
7 TABLE III Example Properties 7 C-3 Density [g/mL] 1.111 1.108
Particle size X.sub.10 [.mu.m] 0.75 0.75 distribution X.sub.50
[.mu.m] 1.97 2.27 (RT) X.sub.90 [.mu.m] 4.97 4.64 Particle size
X.sub.10 [.mu.m] 0.74 0.84 distribution X.sub.50 [.mu.m] 1.89 2.27
(2W40.degree. C.) X.sub.90 [.mu.m] 4.54 5.40 Particle size X.sub.10
[.mu.m] 0.76 0.98 distribution X.sub.50 [.mu.m] 1.96 2.74
(2W54.degree. C.) X.sub.90 [.mu.m] 4.64 6.26
[0128] Whereas the particle size distribution of the formulations
according to the present invention is constant upon storage at
elevated temperature, the particle size increases drastically with
polyoxyethylene sorbitol esters as adjuvants.
Examples 8 to 12
[0129] The following SC formulations according to the invention are
prepared analogously to Examples 1 to 3.
[0130] The following formulations are obtained:
8 Concentration (g/L) Example Ingredient 8 9 10 11 12 BB-4 200 200
200 200 200 Morwet D425 20 20 20 20 20 Pluronic PE 10500 10 10 10
10 10 Proxel GXL 2 2 2 2 2 Rhodorsil 426R 2 2 2 2 2 Rhodopol 23 3 3
3 3 3 Propylene glycol 50 50 50 50 50 Berol 381 250 -- -- -- --
Fluorad FC430 100 -- -- -- Fluorad FC129 -- -- 100 -- -- Glucopon
600 CSUP -- -- -- 250 -- Glucopon 215 CSUP -- -- -- -- 250 Water to
1 L to 1 L to 1 L to 1 L to 1 L
[0131] The density, and the particle size distribution upon storage
for two weeks at room temperature (RT) and at 54.degree. C.
(2W54.degree. C.) of the SC formulations are shown in the following
table IV:
9 TABLE IV Example Properties 8 9 10 11 12 Density [g/mL] 1.101
1.105 1.101 1.103 1.085 Particle size .times..sub.10 [.mu.m] 0.72
0.74 0.73 0.73 0.74 distribution .times..sub.50 [.mu.m] 1.97 1.96
1.96 2.05 2.05 (RT) .times..sub.90 [.mu.m] 5.35 5.50 5.52 5.85 5.78
Particle size .times..sub.10 [.mu.m] 0.70 0.70 0.71 0.72 0.72
distribution .times..sub.50 [.mu.m] 1.87 1.84 1.84 1.96 1.92 (2W54
.degree. C.) .times..sub.90 [.mu.m] 5.12 5.01 5.00 5.57 5.30
[0132] The particle size distribution of the formulations according
to the present invention is constant upon storage at elevated
temperature.
Examples 13 to 15
[0133] The following SC formulations according to the invention are
prepared analogously to Examples 1 to 3
[0134] The following formulations are obtained:
10 Concentration (g/L) Example Ingredient 13 14 15 BB-4 200 200 200
Morwet D425 20 20 20 Pluronic PE 10500 10 10 10 Proxel GXL 2 2 2
Rhodorsil 426R 2 2 2 Rhodopol 23 3 3 3 Propylene glycol 50 50 50
SCS 3631 250 -- -- Emulgin RT40 250 -- Agrimer 30 -- -- 100 Water
to 1 L to 1 L to 1 L
[0135] The density, and the particle size distribution upon storage
for two weeks at room temperature (RT) and 2 weeks at 54.degree. C.
(2W54.degree. C.) of the SC formulations are shown in the following
table V:
11 TABLE V Example Properties 13 14 15 Density [g/mL] 1.126 1.107
1.104 Particle size X.sub.10 [.mu.m] 0.72 0.72 0.73 distribution
X.sub.50 [.mu.m] 2.03 1.95 2.98 (RT) X.sub.90 [.mu.m] 5.77 5.44
5.50 Particle size X.sub.10 [.mu.m] 0.70 0.71 0.70 distribution
X.sub.50 [.mu.m] 1.88 1.91 1.84 (2W54.degree. C.) X.sub.90 [.mu.m]
5.14 5.45 4.96
[0136] The particle size distribution of the formulations according
to the present invention is constant upon storage at elevated
temperature.
Examples 16 to 18
[0137] The following SC formulations according to the invention are
prepared analogously to Examples 1 to 3.
12 Concentration (g/L) Ingredient Example 16 Example 17 Example 18
Dimethomorph 375 375 250 Soprophor FL 15.6 15.6 7.8 Bevaloid 6338
1.9 1.9 1.3 Proxel GXL 0.9 0.9 0.7 Propylene glycol 50 50 33
Rhodopol 23 1.7 1.7 1.1 Fluowet PL80 250 -- -- Atplus 469 -- 250 --
Glucopon 215 CSUP -- -- 500 Water to 1 liter to 1 liter to 1 liter
Density (g/mL) 1.16 1.15 1.12
Examples 19 to 21
[0138] The following SC formulations according to the invention are
prepared analogously to Examples 1 to 3.
13 Concentration (g/L) Ingredient Example 19 Example 20 Example 21
Metconazole 100 100 100 Vanisperse CB 13.3 13.3 13.3 Rhodorsil 426R
0.6 0.6 0.6 Proxel GXL 0.8 0.8 0.8 Propylene glycol 64 64 64
Rhodopol 23 1.4 1.4 1.4 SCS 3631 100 -- -- Atplus 469 -- 100 --
Glucopon 215 CSUP -- -- 100 Water to 1 liter to 1 liter to 1 liter
Density (g/mL) 1.11 1.09 1.08
Examples 22 to 24
[0139] The following SC formulations according to the invention are
prepared analogously to Examples 1 to 3.
14 Concentration (g/L) Ingredient Example 22 Example 23 Example 24
Picolinafen 125 150 125 Supragil MNS/90 7.5 9 7.5 Geropon T36 6.3
7.5 6.3 Rhodorsil 426R 0.5 0.6 0.5 Proxel GXL 0.3 0.3 0.3 Citric
Acid 3.0 3.6 3.0 Propylene glycol 25 30 25 Rhodopol 23 1.25 1.5
1.25 Agrimer VA7W 500 -- -- Atplus 469 -- 400 -- Glucopon 215 CSUP
-- -- 500 Water to 1 liter to 1 liter to 1 liter Density (g/mL)
1.10 1.11 1.07
Example 25
[0140] The following SC formulation according to the invention is
prepared analogously to Examples 1 to 3
15 Ingredient Concentration (g/L) Pendimethalin 300 Agrimer 15 250
Soprophor FL 45 Arkopal N-80 38 Veegum T 4.5 Silicon Antifoam TP 20
5.6 Proxel GXL 0.75 Silica EK 320 3.8 Water to 1 liter Density
(g/mL) 1.13
[0141] The SCs described in the examples 16-25 show insignificant
particle growth when stored for 2 weeks at 54.degree. C. (2 weeks
at 40.degree. C. for example 28). When the adjuvant is replaced by
the equivalent amount of alcohol ethoxylate (e.g. Synperonic 91-6),
unacceptable particle growth is observed in all cases.
* * * * *