U.S. patent application number 10/113739 was filed with the patent office on 2002-12-05 for cleaning device and its use.
This patent application is currently assigned to Unilever Home & Personal Care USA, Division of Conopco, Inc.. Invention is credited to Goldoni, Francesca, Hutchinson, Wendi, Kevelam, Jan, Leerink, Arinus Frederikus, van der Vlist, Pieter, van Reeven, Pieter W..
Application Number | 20020178511 10/113739 |
Document ID | / |
Family ID | 27513109 |
Filed Date | 2002-12-05 |
United States Patent
Application |
20020178511 |
Kind Code |
A1 |
Goldoni, Francesca ; et
al. |
December 5, 2002 |
Cleaning device and its use
Abstract
A device for spot cleaning a fabric with a liquid cleaning
composition, the device comprising a reservoir for holding the
composition, an applicator for applying the composition from the
reservoir to the fabric and absorbent means for absorbing at least
some of the composition from the fabric. In a method of use, the
liquid cleaning composition is applied to the fabric with the
applicator and some of the composition so applied is absorbed into
the absorbent means.
Inventors: |
Goldoni, Francesca; (Breda,
NL) ; Kevelam, Jan; (Vlaardingen, NL) ;
Leerink, Arinus Frederikus; (Zwijndrecht, NL) ; van
Reeven, Pieter W.; (Vlaardingen, NL) ; van der Vlist,
Pieter; (Vlaardingen, NL) ; Hutchinson, Wendi;
(Leeds, GB) |
Correspondence
Address: |
UNILEVER
PATENT DEPARTMENT
45 RIVER ROAD
EDGEWATER
NJ
07020
US
|
Assignee: |
Unilever Home & Personal Care
USA, Division of Conopco, Inc.
|
Family ID: |
27513109 |
Appl. No.: |
10/113739 |
Filed: |
April 1, 2002 |
Current U.S.
Class: |
8/158 ;
68/213 |
Current CPC
Class: |
C11D 17/041 20130101;
A47L 25/08 20130101; C11D 1/83 20130101; C11D 1/94 20130101; C11D
11/0017 20130101; C11D 17/046 20130101; C11D 1/825 20130101 |
Class at
Publication: |
8/158 ;
68/213 |
International
Class: |
D06B 019/00 |
Foreign Application Data
Date |
Code |
Application Number |
Apr 2, 2001 |
GB |
0108196.7 |
Apr 2, 2001 |
GB |
0108193.4 |
Apr 2, 2001 |
GB |
0108195.9 |
Oct 29, 2001 |
EP |
01204119.0 |
Dec 21, 2001 |
EP |
01205064.7 |
Claims
1. A device for spot cleaning a fabric with a liquid cleaning
composition, the device comprising a reservoir for holding the
composition, an applicator for applying the composition from the
reservoir to the fabric and absorbent means for absorbing at least
some of the composition from the fabric.
2. A device according to claim 1, in the form of a member having a
first end and a second end, wherein the reservoir is located within
or forms at least part of the member.
3. A device according to claim 2, wherein one of the applicator and
the absorbent means is located at one of said first and second ends
of the member and the other of the applicator and the absorbent
means is located at the other of the first and second ends of the
member.
4. A device according to claim 2, wherein both the applicator and
the absorbent means are located at the same first end or second end
of the member.
5. A device according to claim 4, wherein the applicator and
absorbent means are concentric with each other and at least part of
the member which is adjacent to the first or second end at which
the applicator or absorbent means are located.
6. A device according to claim 1, wherein the applicator has a
point or region of exit for the composition and the absorbent means
surrounds the point or region of exit.
7. A device according to claim 1, wherein mesh means is provided
for rubbing the fabric so that liquid absorbed by the absorbent
means from the fabric passes through the mesh means.
8. A device according to claim 7, wherein the absorbent member is
held in a chamber having an opening covered by said mesh means.
9. A device according to claim 7, wherein the absorbent means is
held by a holding means and is covered by said mesh means.
10. A device according to claim 1, wherein said applicator
comprises a slot or hole of dimensions for restricting the out-flow
of the liquid composition.
11. A device according to claim 1, wherein the applicator comprises
a liquid permeable member.
12. A device according to claim 1, wherein a removable cap is
provided for covering the applicator when not in use.
13. A device according to claim 1, wherein the liquid composition
comprises water, at least one organic solvent and optionally,
surfactant.
14. A method of spot cleaning a fabric by applying a liquid
cleaning composition to the fabric with an applicator of a device
according to claim 1 and absorbing at least some of the composition
so applied with the absorbent means of said device.
15. A method of spot cleaning according to claim 14 when applying a
device according to claim 8 or claim 9, wherein the mesh means is
used to rub the fabric after application of the liquid composition.
Description
TECHNICAL FIELD
[0001] The present invention relates to a device for spot cleaning
of a fabric and use of that device in a method of spot
cleaning.
BACKGROUND OF THE INVENTION
[0002] In recent years, there has been interest in providing
products for spot removal of stains on fabrics, particularly
garments. This may for example be for removal of stains due to food
spillage or other stains which are stained during wear, as well as
the localised cleaning of collars and cuffs prior to a main wash.
As used herein, in the broadest sense, "spot cleaning" refers to
cleaning of any part of a fabric other than the whole item.
[0003] U.S. Pat. No. 5,122,158 discloses a method and device for
accelerating cleaning of soiled parts of clothes by rub coating
with an enzyme-containing liquid detergent. An applicator device
comprises a container closed by a porous body made of a heated and
sintered synthetic plastics material. This is used to rub the
garment to apply the liquid composition.
[0004] WO-A-97/20099 discloses a method of treating a spot or stain
on a textile by applying a detergent composition, then placing an
absorbent layer adjacent to one side of the textile fabric in the
region of the spot or stain and applying heat, pressure or both to
the opposing side. The detergent composition is applied in the form
of a liquid composition, preferably comprising an organic solvent,
optionally also containing a surfactant. The composition is
dispensed from a container closed by an applicator device such as a
porous plug with fabric or brush texturing, or a roller-ball
device.
[0005] WO-A-99/02769 discloses a method for spot cleaning a stain
spot on a fabric by wiping with an applicator impregnated with a
cleaning solution comprising water, an alcohol, glycol,
glycol-ether or glycerine and from 0.0001-1% by weight of
surfactant. The applied solution is allowed to migrate outwardly
from the spot and the volatile components evaporate. The wiping
applicator is preferably stored in an airtight container and is
preferably a polymer towelette. The cleaning solution may also
contain enzyme. This product has a disadvantage of felting of the
wipe if too much pressure is applied. Further, outward migration of
the solvent tends to produce a "halo" effect on drying.
[0006] WO-A-01/04260 discloses a fabric treatment applicator which
is constructed in a form generally analogous to a felt-tipped pen.
A synthetic fibre nib is used to apply a liquid composition
contained in the body of the pen-like device. The liquid
composition must contain at least one bleach and at least one
surfactant. The absence of means to absorb the applied solution
means that soil is largely redistributed rather than removed.
[0007] WO-A-01/04407 discloses and claims an applicator for
applying a spot-treatment stain removal aqueous solution to a
textile fabric. The liquid composition preferably contains a bleach
and the application device is preferably a nib. The application
device must have a frictional stress of from 0.05 N mm.sup.-2 to 10
N mm.sup.-2. Again, the absence of means to absorb the applied
solution means that soil is largely redistributed rather than
removed.
[0008] However, none of the prior proposals teaches an apparatus
whereby a cleaning composition can be applied to a spot or stain on
a textile fabric in optimal manner and then absorbed, together with
stain material, using the same device and without the need for a
separate absorbent pad or cloth which is not convenient for
cleaning garments whilst being worn. The present invention solves
the problem of providing these functions in a single device.
DEFINITION OF THE INVENTION
[0009] Thus, in a first aspect, the present invention provides a
device for spot cleaning a fabric with a liquid cleaning
composition, the device comprising a reservoir for holding the
composition, an applicator for applying the composition from the
reservoir to the fabric and absorbent means for absorbing at least
some of the composition from the fabric.
[0010] We may also claim the device of the first aspect of the
invention in the form where the reservoir actually contains the
liquid cleaning composition.
[0011] A second aspect of the present invention provides a method
of spot cleaning a fabric by applying a liquid cleaning composition
to the fabric with an applicator or a device according to the first
aspect of the present invention, and absorbing at least some of the
composition so applied with the absorbent means of said device.
DETAILED DESCRIPTION OF THE INVENTION
[0012] The body of the device may be in any convenient shape, eg.
elongated, spherical or partly spherical or having any
aesthetically appealing or novelty shape. However, most preferably,
the device is in the form of a member having a first end and a
second end, wherein the reservoir is located within or forms at
least part of the member. Thus, the first and second ends may be
respective ends of a tubular or other elongated member having any
cross-section. It may also have one or more bends or angles
therein, eg. so that one part can act as a handle whilst the other
end is being applied to the fabric.
[0013] In a preferred embodiment, one of the applicator and the
absorbent means is located at the first end of the member and the
other is located at the second end of the member. Alternatively, in
another preferred embodiment, both the applicator and the absorbent
means are located at the same first end or second end of the
member. In that case, one of the applicator and the absorbent means
may be arranged concentric to the other, and preferably also with
at least the adjacent part of the reservoir member, for simplicity
of use. Each of the applicator and absorbent means may be protected
by removable cap.
[0014] Preferably, mesh means is also provided for rubbing the
fabric so that the liquid absorbed by the absorbent means from the
fabric passes through the mesh means. The absorbent member is
conveniently held in a holding means such as a chamber having an
opening covered by a mesh means. Alternatively, the absorbent means
may be mounted on a support member and covered by the mesh means.
In a coaxial form of such an arrangement, an outlet of the
applicator may pass through the support and absorbent means. The
mesh can assist soil removal by rubbing.
[0015] The loosened soil then passes through the mesh to be
absorbed by the absorbent means, before it can be redistributed on
the fabric. Further, hydrophobic soil such as lipstick can be
removed by adhering directly to the mesh means. If a mesh means is
not present, such hydrophobic soil will be directly absorbed by the
absorbent means and/or adhere to it. Preferably, the device also
comprises a holding means to hold the absorbent means. The
absorbent means may for example be held in a chamber, compartment,
recess, on support member or a surface of the device by any
suitable means. The absorbent means may be glued, simply wedged or
held by any other suitable manner in the holding means. The holding
means for the absorbent means is preferably a non detachable part
of the device. The absorbent means will usually be much smaller
than the device. So small that the absorbent means itself may be
difficult to hold when it is rubbed against the stain. One
advantage according to this aspect of the invention is that the
absorbent means is held in place by the holding means of the device
and the user can still transfer an effective force to remove the
stain by holding the device and rubbing the absorbent means,
optionally covered by mesh means, against the stain.
[0016] The applicator closes the reservoir but allows the liquid
composition to flow-out in controlled manner. It may for example,
comprise a simple slot or hole of dimensions such that the out-flow
of the liquid composition is restricted. It can also comprise a nib
of metal or plastics construction, or a permeable member such as of
foam or sintered composition or a fibre member. Optionally, a
snap-off, pull-off or cut-off seal or else a cap or plug may be
provided for sealing before first use. After opening, a removable
cap may be provided for covering the applicator before repeat use,
so that liquid cannot evaporate or escape.
[0017] To assist removal of the composition from the reservoir, the
reservoir may in whole or in part, be formed of a flexible material
so that it may be squeezed. The reservoir may also be provided with
a plunger (e.g. rod and piston) arrangement to assist dispensing of
the liquid.
[0018] The mesh means is preferably a mesh of natural or synthetic
polymer eg. made of polyethylene, polyester or nylon The mesh size
is to be understood as the opening or clear space between the
wires. Preferably the average mesh size is greater than 200,
preferably greater than 250, more preferably greater than 300
micrometers. The average mesh size is preferably smaller than 2000,
more preferably smaller than 1500 and even more preferably smaller
than 1000 micrometers. A mesh thickness of from 50 micrometers to
500 micrometers is typical and is preferably of from 150
micrometers to 400 micrometers. The wire diameter is preferably
from 50 micrometers to 500 micrometers and is more preferably from
150 micrometers to 400 micrometers. The mesh means may even be a
coarsely woven fabric.
[0019] The absorbent means must be capable of absorbing liquid
composition from the fabric, having at least some of the stain
absorbed or dispersed therein. It may for example be of cotton or
synthetic fibre absorbent wool, woven or non-woven natural or
synthetic fabric, or it may be a super absorbent polymer such as
Hysorb.TM. (ex BASF) or OASIS.TM. fibre (ex Courtaulds).
[0020] The liquid composition is preferably aqueous, although the
present invention also extends to compositions wherein a
substantially non-aqueous liquid composition is applied, eg. having
less than 25% by weight or less, preferably 20% by weight or less,
more preferably 15% by weight or less, eg. 10% by weight or less,
most preferably 5% by weight or less of water.
[0021] In the case of the aqueous compositions, it is also
preferred to have at least one organic solvent present, which
preferably should be water-miscible. It is also preferred in some
embodiments for the composition to contain a surfactant component
comprising one or more surfactants selected from an ionic,
cationic, zwitterionic and amphoteric surfactant. If present,
preferably the organic solvent content is from 0.1 to 75% by weight
of the composition, more preferably from 1% to 110% by weight. When
present, the surfactant component is preferably present from
0.00001% to 10%, more preferably from 0.0001% to 1% by weight of
the composition. The presence of surfactant is beneficial for
removing oily stains from hydrophobic fabrics such as polyester.
However, in the case of oily stains on hydrophilic fabrics such as
cotton, it may be preferably to avoid surfactant, i.e. to have less
than 1 wt %, preferably less than 0.1 wt %, most preferably no
surfactant by weight of the liquid cleaning composition.
[0022] Preferred organic solvents are selected from alcohols,
ketones, esters, glycol ethers and mixtures thereof.
[0023] For optional cleaning, it is advantageous for the viscosity
of the liquid composition to be preferably from 0.1 mPaS to 1000
mPaS, more preferably from 10 mPaS to 500 mPaS. If the inherent
viscosity of the composition is not already within such a range, a
thickener e.g. of polymeric type may be included. For the avoidance
of doubt, in the case of non-Newtonian liquid compositions (which
is preferable), the viscosity is that measured at a shear rate of
100 s.sup.31 1.
[0024] Optionally, other components may be dissolved or dispersed
in the liquid compositions, eg. selected from detergency builders,
bleaches and bleach systems, enzymes, fluorescers and other
materials which are conventional in laundry wash compositions for
hand or machine washing.
[0025] The amount of liquid cleaning composition in the reservoir
means is preferably from 0.001 to 10 ml, more preferably from 0.1
ml to 1 ml.
[0026] According another aspect of the present invention a device
is provided for spot cleaning a fabric with a liquid cleaning
composition, the device comprising a reservoir for holding the
composition, an applicator for applying the composition from the
reservoir to the fabric and chemical heating means, wherein the
chemical heating means comprises at least one substance which
produces heat when wetted by liquid composition from the
fabric.
[0027] Yet another aspect of the present invention provides a
method of spot cleaning a fabric by applying a liquid cleaning
composition to the fabric with an applicator or a device according
to the first aspect of the present invention, and contacting at
least some of the composition so applied and the chemical means of
said device.
[0028] The chemical heating means produces heat when wetted by the
liquid cleaning composition from the fabric.
[0029] One class of suitable substance for producing heat when
wetted comprises anhydrous substances which exhibit an exothermic
effect when wetted. Preferred anhydrous substances are anhydrous
aluminosilicates, metal oxides, and the like. Examples of
aluminosilicates include anhydrous Molecular Sieves (ex Aldrich),
zeolite type A (having sodalite cages), zeolite type X. chabazite,
and the like. Suitable examples of metal oxides include calcium
oxide or magnesium oxide. Other metal salts may be employed as
well, e.g. (partially) dehydrated calcium sulphate (gypsum). It is
preferred that these compounds are in a suitable granular form so
that the compound can be easily retained by a matrix and not dust
or powder escapes from the device during use or storage. The
compounds may be employed as such or as mixtures.
[0030] Alternatively, the material for producing the heat may
comprise at least two different chemical species which undergo an
exothermic chemical reaction when wetted, for solid acids and solid
bases, such as sodium hydrogen sulphate and sodium carbonate or
citric acid and sodium carbonate. Preferably, these solids are
intimately admixed.
[0031] As used herein, reference to "wetting" refers to hydration
with water, other aqueous solutions or dispersions, and equivalent
wetting semi-aqueous liquids or non-aqueous liquids which form the
liquid composition and which trigger the exothermic on. However,
water and aqueous liquid solutions or dispersions will be the
liquid of choice in most cases.
[0032] It is also preferred if the device can physically absorb a
significant quality of liquid composition from the fabric, together
with at least some stain or soil. Many materials which produce heat
when wetted are also absorbent, especially if provided in finely
powdered or sintered form. However, if the chemical heating means
is not in itself very absorbent, separate absorbent means may also
be provided. Separate absorbent means may also be provided, even if
the chemical heating means is quite absorbent in itself.
[0033] According to yet another aspect, the present invention
provides a device for spot cleaning a fabric using a first liquid
composition and a second liquid composition, the device comprising
reservoir means which comprises a first reservoir for holding the
first liquid composition and a second reservoir for holding the
second liquid composition, the device further comprising applicator
means for applying the first and second liquid compositions from
the reservoir means to the fabric.
[0034] For the avoidance of doubt, any optional or preferable
feature of any aspect of the present invention may be utilised in
any other aspect of the invention.
[0035] The present invention will now be explained in more detail
by way of the following description of preferred embodiments, and
with reference to the accompanying drawings.
DESCRIPTION OF DRAWINGS
[0036] FIG. 1 shows a cross-section through a first embodiment of a
device according to the present invention;
[0037] FIG. 2 shows a cross-section through a second embodiment of
a device according to the present invention; and
[0038] FIG. 3 shows a cross-section through a third embodiment of a
device according to the present invention.
DESCRIPTION OF PREFERRED EMBODIMENTS
[0039] As shown in FIG. 1, there is shown a first embodiment of a
spot cleaning device 1 according to the present invention. Overall,
it is of a size to be hand-held
[0040] The device comprises an elongate member 3 having a first end
5 and a second end 7. The elongate member 3 contains a reservoir 9
into which is filled a liquid cleaning composition 11.
[0041] At the first end 5 of the elongate member 3, is located an
applicator 13 which comprises a frusto-conical extension 15 of the
elongate member 3 and integral therewith, narrowing to a restricted
opening 17. This restricted opening is sealed before sale and use
with a snap-off member 19.
[0042] At the second end 7 of the elongate member 3, there is
attached thereto, a chamber member 21 attached to the elongate
member by a frustoconical section 23. Thus, the elongate member 3
and the chamber 21 and frustoconical connector 23 are cylindrical
in cross-section but the chamber member 21 is of wider diameter
than the elongate member 3.
[0043] Contained within the chamber 21 is a particulate
super-absorbent polymer material (Hysorb.TM.) designated 25.
Optionally, this may also occupy the frustoconical section 23. The
chamber member 21 has an open end 27 which is closed by a mesh
(net) 29 made of nylon. The mesh size is approximately 450
micrometers. The mesh size is in any event smaller than the average
particle size of the polymer 25. The elongate member 3,
frustoconical sections 15 and 23 and the chamber 21 together with
the snap-off member 19 are conveniently moulded as one-piece
construction, eg. by injection moulding of high density
polypropylene.
[0044] In use, the consumer snaps-off member 17 and tips the device
so that an appropriate amount of liquid cleaning composition is
dispensed through narrow opening 17 to the stain. The pen is then
inverted and the stain and surrounding fabric, which is wetted with
the liquid composition, is rubbed/scrubbed with the mesh member 29.
In this way, the liquid composition on the fabric, together with
stain material dispersed or dissolved therein, is absorbed into the
absorbent polymer 25 and/or the soil adheres to the mesh and/or
polymer.
[0045] Turning now to FIG. 2 of the drawings, there is shown a
second embodiment of a spot cleaning device 31 according to the
present invention.
[0046] In the device of this embodiment, a hard disc 33, preferably
of a plastic material such as polypropylene, has formed through its
centre, a channel 35. Situated above the disc, is a reservoir in
the form of a cylinder 37 in which is located an aqueous liquid
cleaning composition 39. The reservoir cylinder 37 is coaxial with
the channel 35 formed in the hard disc 33. A dosing knob 41 is
located at the top 43 of the reservoir cylinder, i.e. at the end
remote from the hard disc 33. Attached to the dosing knob 41 is a
push rod 45 which extends through a hole 47 in the top 49 of the
cylinder. The push rod 45 is attached to a plunger or piston 51
which is located above and communicating with the liquid cleaning
composition 39.
[0047] The bottom end 53 of the reservoir cylinder 37, remote from
the top end 49, rests on an upper surface 55 of the hard disc
33.
[0048] Attached to the underside surface 57 of the hard disc 33, is
a mass 59 of the same super-absorbent material as used in the first
embodiment, contained in a fabrics bag (not shown). This mass 59
has a channel 61 formed therethrough, communicating with and
extending from, the channel 35 through the hard disc 33. The
channel 61 terminates in an opening 62 which before use is sealably
closed with a soft polymer plug (not shown).
[0049] A nylon net 63 of the same construction used in the first
embodiment, covers the pad and is attached to the circumference 65
of the hard disc 33. Thus, the super absorbent pad 59 is enclosed
by the nylon net 63 and the underside 57 of the hard disc 33.
[0050] In use, the plug is removed from the opening 62 at the
bottom of channel 61. The device is then lowered onto the stain 67
so that the nylon net 63 is directly in contact therewith and in
contact with the surrounding fabric and liquid cleaning composition
39 is ejected through the channel 35 hard disc and channel 61 in
the super-absorbent pad, to be ejected through the net to wet the
stain 67 and surrounding fabric 69. This is effected by pushing
upon dosing knob 41, which moves the push rod 45 and thus, the
plunger or piston 51 to force the liquid composition out of the
device through the opening 62. Simultaneously, manual pressing and
rotating causes both stain soil together with liquid composition
absorbed by the fabric to be absorbed into the super-absorbent
59.
[0051] There is now shown in FIG. 3, a third embodiment of a device
71 according to the present invention.
[0052] In this embodiment, a reservoir in the form of a "pipette"
73, i.e. a flexibly deformable plastics container, is filled with a
liquid cleaning composition 75. The body 77 of the pipette tapers
at its lower end 79 into a frustoconical section 81 and thence into
a tubular nozzle 83 which terminates in a nipple 85 which is
cut-off before use.
[0053] The nozzle 83 is surrounded by a mass of super-absorbent
material 87 held in a woven fabric bag (not shown). This is the
same material as utilised in the first and second embodiments. The
top 89 of the mass of super absorbent material is attached to a
plastics collar 91 which surrounds the upper part 93 of the nozzle
83.
[0054] Surrounding the mass super-absorbent material 87 is a nylon
net 95 which is the same form of nylon net as used in the first and
second embodiments.
[0055] Operation of the device according to the third embodiment is
essentially analogous to the device of the second embodiment,
except that the nipple 85 is first cut-off. Again, after
positioning the device above the stain, the device is then lowered
to touch the fabric. Instead of pushing a dosing knob, as in the
previous embodiment, liquid cleaning composition is ejected by
squeezing the pipette reservoir 73, so that it is ejected through
the opening 85 of the nozzle 83, through the bottom of the nylon
mesh 95. The underside of the net 95 abrades the stain through a
pressing and rotating action, so that liquid composition absorbed
by the fabric and also stain material is absorbed.
[0056] The liquid cleaning compositions 11, 39, 75 used in the
above embodiments may have the following formulations:
1 Trade Name Supplier Material Type wt. % Permulen TR 2 BF Goodrich
polymeric emulsified 0.1 Lialet 111-5.5 Condea Augusta nonionic
surfactant 0.2 Admox 12 Albermarle tertiary amine oxide 0.15 Sodium
dioctyl Sigma wetting agent 0.3 sulfosuccinate KOH Baker pH control
0.021 Kathon CG-ICP Rohm & Haas Biocide 0.0003 Water balance pH
= 7.0 Example 2 Trade Name Supplier Material Type wt. % Permulen
TR2 BF Goodrich Polymeric emulsifier 0.10 Lialet 111-5.5 Condea
Augusta Nonionic surfactant 0.20 Admox 12 Albemarle Tertiary amine
oxide 0.15 Sodium dioctyl Sigma Anionic surfactant/wet 0.30
sulfosuccinate Kathon CG-ICP Rohm and Haas Biocide 0.0003 KOH to pH
7.0 Water balance Example 3 Trade Name Supplier Material Type wt. %
Permulen TR2 BF Goodrich Polymeric emulsifier 0.10 Lialet 111-5.5
Condea Augusta Nonionic surfactant 0.20 Admox 12 Albemarle Tertiary
amine oxide 0.15 Dynol 604 Air Products nonionic surfactant/ 0.30
wet Kathon CG-ICP Rohm and Haas Biocide 0.0003 KOH to pH 7.0 Water
Balance
[0057] In an alternative formulation, the amount of Pemulen TR2 is
0.1 wt % and 0.75 wt % is the amount of Lialet 111-5.
* * * * *