U.S. patent application number 14/824077 was filed with the patent office on 2016-06-30 for modified thermoplastic polyurethane rolling film and preparation method.
The applicant listed for this patent is Jinxian Lin, Yuying Zheng. Invention is credited to Jinxian Lin, Yuying Zheng.
Application Number | 20160185923 14/824077 |
Document ID | / |
Family ID | 50523623 |
Filed Date | 2016-06-30 |
United States Patent
Application |
20160185923 |
Kind Code |
A1 |
Zheng; Yuying ; et
al. |
June 30, 2016 |
Modified thermoplastic polyurethane rolling film and preparation
method
Abstract
This present invention discloses a modified thermoplastic
polyurethane (TPU) rolling film and relates to a preparation method
thereof. The modified thermoplastic polyurethane (TPU) rolling film
comprises: 100 parts by weight of TPU resin, 3 to 8 parts by weight
of Thermoplastic polyolefin (TPO) resin, 5 to 10 parts by weight of
Thermoplastic Silicone Vulcanizate (TPSiV) resin, 5 to 15 parts by
weight of TPU color masterbatch, 0.5 to 1.5 parts by weight of
antioxidant, 0.5 to 1.5 parts by weight of light stabilizer, 10 to
15 parts by weight of flame retardant, and 0.03 to 0.1 parts by
weight of compound lubricant. This kind of rolling film has a
uniform thickness and high surface gloss, and is yellowing
resistant, abrasion resistant, flame retardant, and low-temperature
resistant.
Inventors: |
Zheng; Yuying; (Fuzhou,
CN) ; Lin; Jinxian; (Fuzhou, CN) |
|
Applicant: |
Name |
City |
State |
Country |
Type |
Zheng; Yuying
Lin; Jinxian |
Fuzhou
Fuzhou |
|
CN
CN |
|
|
Family ID: |
50523623 |
Appl. No.: |
14/824077 |
Filed: |
August 12, 2015 |
Current U.S.
Class: |
524/91 ;
264/175 |
Current CPC
Class: |
C08L 75/04 20130101;
B29B 7/005 20130101; B29K 2023/00 20130101; B29C 48/08 20190201;
B29K 2995/0016 20130101; C08J 2483/04 20130101; B29B 9/06 20130101;
B29K 2021/003 20130101; B29B 9/12 20130101; C08J 2383/00 20130101;
B29K 2509/14 20130101; C08J 2323/02 20130101; B29L 2007/008
20130101; C08J 5/18 20130101; C08J 2475/04 20130101; C08J 2423/02
20130101; B29C 48/0019 20190201; C08L 83/04 20130101; B29K 2083/00
20130101; C08J 2423/14 20130101; C08J 2375/04 20130101; B29B 7/02
20130101; B29C 48/78 20190201; B29K 2075/00 20130101; B29C 48/022
20190201; C08L 23/00 20130101; B29K 2995/0055 20130101 |
International
Class: |
C08J 5/18 20060101
C08J005/18; B29C 47/78 20060101 B29C047/78; B29C 47/00 20060101
B29C047/00; B29B 7/02 20060101 B29B007/02; B29B 7/00 20060101
B29B007/00 |
Foreign Application Data
Date |
Code |
Application Number |
Dec 24, 2014 |
CN |
PCT/CN2014/095866 |
Claims
1. A modified thermoplastic polyurethane (TPU) rolling film
comprising: 100 parts by weight of TPU resin, 3 to 8 parts by
weight of Thermoplastic polyolefin (TPO) resin, 5 to 10 parts by
weight of Thermoplastic Silicone Vulcanizate (TPSiV) resin, 5 to 15
parts by weight of TPU color masterbatch, 0.5 to 1.5 parts by
weight of antioxidant, 0.5 to 1.5 parts by weight of light
stabilizer, 10 to 15 parts by weight of flame retardant, and 0.03
to 0.1 parts by weight of compound lubricant.
2. The composition as claimed in claim 1 wherein the TPU color
masterbatch is prepared through an extruding and granulating
process with TPU resin (DP6386A) used as carrier and toner.
3. The composition as claimed in claim 1 wherein the antioxidant is
prepared by mixing .beta.-(3,5-di-tert-butyl-4-hydroxyphenyl)
propionic acid octadecanol ester with N, N'-hexamethylene bis
(3,5-di-tert-butyl-4-hydroxyphenyl propionamide) at a mass ratio of
1:1.5.
4. The composition as claimed in claim 1 wherein the light
stabilizer is prepared by mixing 2-(2'-hydroxy-3',5'-cumylphenyl)
benzotriazole with 2-(2'-hydroxy-3',5'-di-tert-amyl-phenyl)
benzotriazole at a mass ratio of 1:2.
5. The composition as claimed in claim 1 wherein the flame
retardant is prepared by mixing the organophosphate flame
retardants with talcum powder of 5000 mesh at a mass ratio of
3:1.
6. The composition as claimed in claim 1 wherein the compound
lubricant is prepared by mixing Erucamide with Oleic acid amide and
Stearic acid at a mass ratio of 1:1:1.
7. A process of preparing a modified TPU rolling film as claimed in
claims 1-6 comprising the following steps (1), (2), and (3): Step
(1): adding all ingredients according to the compositions specified
in claims 1-6 into a stirring pot and stirring the mixture evenly
at a high speed under a temperature between 85.degree. C. and
100.degree. C.; Step (2): adding the mixture obtained from Step 1
into an internal batch mixer wherein the mixture is mixed for 3 to
5 minutes; Step (3): plasticating, then extruding, and finally
calendering the mixture obtained from Step (2) using a rolling
turbine, an extruder, and a calender, respectively, to produce the
film.
8. A process according to claim 7 wherein the temperatures for said
plasticating, extruding, and calendering as described in Step (3)
are maintained at 130.degree. C. to 150.degree. C., 130.degree. C.
to 150.degree. C., and 140.degree. C. to 160.degree. C.
respectively.
Description
CROSS-REFERENCE TO RELATED APPLICATIONS
[0001] This application is a continuation of International
Application No. PCT/CN2014/095866, with an international filing
date of Dec. 24, 2014.
BACKGROUND OF THE INVENTION
[0002] This present invention, which discloses a modified
thermoplastic polyurethane (TPU) rolling film and a preparation
method thereof, belongs to the field of resin film
manufacturing.
[0003] Thermoplastic polyurethane (TPU) film has been widely used
in automotive electronics, medical equipment, daily necessities,
and other areas due to its superior characteristics of excellent
toughness, high strength, non-toxic, tasteless, and thermal
processing performance. Tape casting is currently a widely used
method for the manufacture of TPU films. The method suffers from
low productivity, non-uniform thickness, and high production cost
because all of the modified additives must be granulated before
being added. As such, application of the thermoplastic polyurethane
(TPU) film is limited.
[0004] This present invention has optimized the recipe and the
preparation method, overcome the process issues of uneven
plasticizing and easily stuck to the roller and so on. The modified
thermoplastic polyurethane (TPU) rolling film disclosed herein
offers better economic and social advantages due to its properties
of high productivity, uniform thickness, high surface gloss, and
excellent resistance to yellowing, abrasion, flame, and low
temperature.
BRIEF SUMMARY OF THE INVENTION
[0005] The present invention aims at developing a modified TPU
rolling film and a preparation method thereof to overcome the
shortcomings of the prior art. The modified TPU rolling film
disclosed herein offers the features of high productivity, uniform
thickness, high surface gloss, yellowing resistant (48 hours, UVB,
reach to 4 grade), abrasion resistant, flame retardant (the
thickness is 2.0 mm, reach to V0 grade), low temperature resistant
(-30.degree. C.) and excellent folding capability (Folding 150000
times to 200000 times).
[0006] The modified TPU rolling film comprises: [0007] 100 parts by
weight of TPU resin, [0008] 3 to 8 parts by weight of Thermoplastic
polyolefin (TPO) resin, [0009] 5 to 10 parts by weight of
Thermoplastic Silicone Vulcanizate (TPSiV) resin, [0010] 5 to 15
parts by weight of TPU color masterbatch, [0011] 0.5 to 1.5 parts
by weight of antioxidant, [0012] 0.5 to 1.5 parts by weight of
light stabilizer, [0013] 10 to 15 parts by weight of flame
retardant, [0014] and 0.03 to 0.1 parts by weight of compound
lubricant.
[0015] The grade of said TPU resin is TPU DP6386A, which was
purchased from Bayer AG.
[0016] The grade of said TPO resin is CMW402, which was purchased
from Exxon Mobil.
[0017] The said Thermoplastic Silicone Vulcanizate (TPSiV) resin is
3011 series, which was purchased from Dow Coming.
[0018] The said TPU color masterbatch is prepared through an
extruding and granulating process with TPU resin (DP6386A) used as
carrier and toner.
[0019] The said antioxidant is prepared by mixing
.beta.-(3,5-di-tert-butyl-4-hydroxyphenyl) propionic acid
octadecanol ester with N, N'-hexamethylene bis
(3,5-di-tert-butyl-4-hydroxyphenyl propionamide) at a mass ratio of
1:1.5.
[0020] The said light stabilizer is prepared by mixing
2-(2'-hydroxy-3',5'-cumylphenyl) benzotriazole with
2-(2'-hydroxy-3',5'-di-tert-amyl-phenyl) benzotriazole at a mass
ratio of 1:2.
[0021] The flame retardant is prepared by mixing the
organophosphate flame retardants with talcum powder of 5000 mesh at
a mass ratio of 3:1.
[0022] The compound lubricant is prepared by mixing erucamide with
oleic acid amide and stearic acid, at a mass ratio of 1:1:1.
[0023] The TPSiV resin, developed by the Dow Corning, is a kind of
thermoplastic silicone elastomer that is composed by thermoplastic
substrates and vulcanization silicone rubber particles.
[0024] The process for preparing the modified TPU rolling film
comprises the following steps: [0025] Step (1): adding all
ingredients according to the specified compositions into a stirring
pot and stirring the mixture evenly at a high speed under a
temperature between 85.degree. C. and 100.degree. C.; [0026] Step
(2): adding the mixture obtained from Step (1) into an internal
batch mixer wherein the mixture is mixed for 3 to 5 minutes; [0027]
Step (3): plasticating, then extruding, and finally calendering the
mixture obtained from Step (2) using a rolling turbine, an
extruder, and a calender, respectively, to produce the film. The
temperatures of said plasticating, extruding, and calendaring are
maintained at 130.degree. C. to 150.degree. C., 130.degree. C. to
150.degree. C., 140.degree. C. to 160.degree. C. respectively.
[0028] In the present invention, TPO resin controls the hardness of
TPU films and improve TPU workability. TPSiV resin makes TPU film
surface clean and dry, yet still maintains high mechanical
properties after air aging. The modified TPU rolling film has the
properties of both TPU and organosilicon material, has excellent
aging resistance, scratch resistance, and oil resistance, and can
be used at low temperature. More importantly, TPSiV resin has good
compatibility with TPU resin. The antioxidant is compounded by
antioxidants of different melting points and molecular weights. The
light stabilizer is compounded by light stabilizers of different
melting points and molecular weights. Every component acts
synergistically with each other, which improves the yellowing
resistance of TPU films. The flame retardant is a blend of the
organophosphate flame retardants and talcum powder, which form
synergies, decrease the fire resistance of melt drip of TPU
material, and improve the flame retardance. The compound lubricant
is a blend of erucamide, oleic acid amide and stearic acid with
different primary effect and termination effect in machining
Erucamide, oleic acid amide, and stearic acid complement each other
seamlessly, which ensures that the compound lubricant has excellent
properties during the processing, and can avoid the phenomenon of
uneven plasticizing and sticking.
[0029] The modified TPU rolling film disclosed herein offers high
productivity, uniform thickness, high surface gloss, excellent
resistance to yellowing (48 hours, UVB, reach to grade 4),
abrasion, flame (the thickness is 2.0 mm, reach to grade V0), and
low temperature (-30.degree. C.), and excellent folding capability
(folding 150000 times to 200000 times), and free from the
phenomenon of uneven plasticizing and sticking.
BRIEF DESCRIPTION OF DRAWINGS
[0030] Not Applicable
DETAILED DESCRIPTION OF THE INVENTION
[0031] The present invention is further described in the following
three exemplified preferred embodiments to illustrate the
application of the principles of the invention. It is understood
that the invention may be embodied otherwise without departing from
such principles. The scope of the claims of the present invention
expressly should not be limited to such exemplary or preferred
embodiments.
Embodiment 1
[0032] In this embodiment, the present application provides a
modified TPU rolling film comprising: [0033] 100 parts by weight of
TPU resin, [0034] 3 parts by weight of TPO resin, [0035] 10 parts
by weight of TPSiV resin, [0036] 5 parts by weight of TPU color
masterbatch, [0037] 0.5 parts by weight of antioxidant, [0038] 1.5
parts by weight of light stabilizer, [0039] 15 parts by weight of
flame retardant, [0040] and 0.1 parts by weight of compound
lubricant.
[0041] The grade of said TPU resin is TPU DP6386A, which was
purchased from Bayer Company.
[0042] The grade of said TPO resin is CMW402, which was purchased
from Exxon Mobil.
[0043] The said TPSiV resin is 3011 series, which was purchased
from Dow Coming.
[0044] The said TPU color masterbatch is prepared through the
extruding and granulating process with TPU resin (DP6386A) used as
carrier and toner.
[0045] The said antioxidant is prepared by mixing
.beta.-(3,5-di-tert-butyl-4-hydroxyphenyl) propionic acid
octadecanol ester (antioxidant 1076) with N, N'-hexamethylene bis
(3,5-di-tert-butyl-4-hydroxyphenyl propionamide) (antioxidant 1098)
at a mass ratio of 1:1.5.
[0046] The said light stabilizer is prepared by mixing
2-(2'-hydroxy-3',5'-cumylphenyl) benzotriazole (UV234) with
2-(2'-hydroxy-3',5'-di-tert-amyl-phenyl) benzotriazole (UV328) at a
mass ratio of 1:2.
[0047] The flame retardant is prepared by mixing the
organophosphate flame retardants (grade OP1320) with talcum powder
of 5000 mesh at a mass ratio of 3:1.
[0048] The compound lubricant is prepared by mixing erucamide with
oleic acid amide and stearic acid, at a mass ratio of 1:1:1.
[0049] The TPSiV resin, developed by the Dow Corning, is a kind of
thermoplastic silicone elastomer that is composed of thermoplastic
substrates and vulcanization silicone rubber particles.
[0050] The present application further provides a process for
preparing the modified thermoplastic polyurethane (TPU) rolling
film, comprising the following steps: [0051] Step (1): adding all
ingredients according to the compositions into a stirring pot and
stirring the mixture evenly at a high speed under a temperature of
85.degree. C.; [0052] Step (2): pouring the mixture from Step (1)
into an internal batch mixer wherein the mixture is mixed for 5
minutes; [0053] Step (3): plasticating, then extruding, and finally
calendering the mixture obtained from Step (2) using a rolling
turbine, an extruder, and a calender, respectively. The
temperatures of said plasticating, extruding, and calendaring are
maintained at 130.degree. C., 130.degree. C., 150.degree. C.
respectively.
Embodiment 2
[0054] In the second embodiment, the present application provides a
modified TPU rolling film comprising: [0055] 100 parts by weight of
TPU resin, [0056] 5 parts by weight of TPO resin, [0057] 8 parts by
weight of TPSiV resin, [0058] 10 parts by weight of TPU color
masterbatch, [0059] 0.7 parts by weight of antioxidant, [0060] 1.1
parts by weight of light stabilizer, [0061] 13 parts by weight of
flame retardant, [0062] and 0.08 parts by weight of compound
lubricant.
[0063] The grade of said TPU resin is TPU DP6386A, which was
purchased from Bayer Company.
[0064] The grade of said TPO resin is CMW402, which was purchased
from Exxon Mobil.
[0065] The said TPSiV resin is 3011 series, which was purchased
from Dow Coming.
[0066] The said TPU color masterbatch is prepared through the
extruding and granulating process with TPU resin (DP6386A) used as
carrier and toner.
[0067] The said antioxidant is prepared by mixing
.beta.-(3,5-di-tert-butyl-4-hydroxyphenyl) propionic acid
octadecanol ester (antioxidant 1076) with N, N'-hexamethylene bis
(3,5-di-tert-butyl-4-hydroxyphenyl propionamide) (antioxidant 1098)
at a mass ratio of 1:1.5, respectively.
[0068] The said light stabilizer is prepared by mixing
2-(2'-hydroxy-3',5'-cumylphenyl) benzotriazole (UV234) with
2-(2'-hydroxy-3',5'-di-tert-amyl-phenyl) benzotriazole (UV328) at a
mass ratio of 1:2.
[0069] The flame retardant is prepared by mixing the
organophosphate flame retardants (grade OP1320) with talcum powder
of 5000 mesh at a mass ratio of 3:1.
[0070] The compound lubricant is prepared by mixing erucamide with
oleic acid amide and stearic acid, at a mass ratio of 1:1:1.
[0071] The TPSiV resin, developed by the Dow Corning, is a kind of
thermoplastic silicone elastomer that is composed of thermoplastic
substrates and vulcanization silicone rubber particles.
[0072] The present application further provides a process for
preparing the modified thermoplastic polyurethane (TPU) rolling
film, comprising the following steps: [0073] Step (1): adding all
ingredients according to the compositions into a stirring pot and
stir the mixture evenly at a high speed under a temperature of
90.degree. C.; [0074] Step (2): pouring the mixture from Step (1)
into an internal batch mixer wherein the mixture is mixed for 4
minutes; [0075] Step (3): plasticating, then extruding, and finally
calendering the mixture obtained from Step (2) using a rolling
turbine, an extruder, and a calender, respectively. The
temperatures of said plasticating, extruding, and calendaring are
maintained at 140.degree. C., 150.degree. C., 140.degree. C.
respectively.
Embodiment 3
[0076] In the third embodiment, the present application provides a
modified TPU rolling film comprising: [0077] 100 parts by weight of
TPU resin, [0078] 8 parts by weight of TPO resin, [0079] 5 parts by
weight of TPSiV resin, [0080] 15 parts by weight of TPU color
masterbatch, [0081] 1.5 parts by weight of antioxidant, [0082] 0.5
parts by weight of light stabilizer, [0083] 10 parts by weight of
flame retardant, [0084] and 0.03 parts by weight of compound
lubricant.
[0085] The grade of said TPU resin is TPU DP6386A, which was
purchased from Bayer Company.
[0086] The grade of said TPO resin is CMW402, which was purchased
from Exxon Mobil.
[0087] The said TPSiV resin is 3011 series, which was purchased
from Dow Coming.
[0088] The said TPU color masterbatch is prepared through the
extruding and granulating process with TPU resin (DP6386A) used as
carrier and toner.
[0089] The said antioxidant is prepared by mixing
.beta.-(3,5-di-tert-butyl-4-hydroxyphenyl) propionic acid
octadecanol ester (antioxidant 1076) with N, N'-hexamethylene bis
(3,5-di-tert-butyl-4-hydroxyphenyl propionamide) (antioxidant 1098)
at a mass ratio of 1:1.5, respectively.
[0090] The said light stabilizer is prepared by mixing
2-(2'-hydroxy-3',5'-cumylphenyl) benzotriazole (UV234) with
2-(2'-hydroxy-3',5'-di-tert-amyl-phenyl) benzotriazole (UV328) at a
mass ratio of 1:2.
[0091] The flame retardant is prepared by mixing the
organophosphate flame retardants (grade OP1320) with talcum powder
of 5000 mesh at a mass ratio of 3:1.
[0092] The compound lubricant is prepared by mixing Erucamide with
Oleic acid amide and Stearic acid, at a mass ratio of 1:1:1.
[0093] The TPSiV resin, developed by the Dow Corning, is a kind of
thermoplastic silicone elastomer that is composed of thermoplastic
substrates and vulcanization silicone rubber particles.
[0094] The present application further provides a process for
preparing the modified thermoplastic polyurethane (TPU) rolling
film, comprising the following steps: [0095] Step (1): adding all
ingredients according to the compositions into a stirring pot and
stirring the mixture evenly at a high speed under a temperature of
100.degree. C.; [0096] Step (2): pouring the mixture from Step (1)
into an internal batch mixer wherein the mixture is mixed for 5
minutes; [0097] Step (3): plasticating, then extruding, and finally
calendering the mixture obtained from Step (2) using a rolling
turbine, an extruder, and a calender, respectively. The
temperatures of said plasticating, extruding, and calendaring are
maintained at 150.degree. C., 140.degree. C., 160.degree. C.,
respectively.
* * * * *