Patent EP0110856A1 successfully refreshed from Google Patents.
US4289668A
Expired / Lapsed
US
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Polymer systems plasticized with hydroxy fatty acids
Assignee: Standard Oil Co
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Filing: 1980-10-14
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Granted: 1981-09-15
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Expires: 2000-10-14
Abstract
Abstract A plasticized resin system is described, and the system comprises an intimate mixture of (a) an interpolymer derived from at least one vinyl monomer and an α,β- unsaturated dicarboxylic acid, anhydride or the lower alkyl esters thereof, and (b) a plasticizing amount of a hydroxy substituted fatty acid containing at least about eight carbon atoms. The plasticized resin system also may contain at least one additional polar resin such as polycarbonates, polysulfones, polyesters, etc. The use of the hydroxy substituted fatty acid in this manner improves the processability of the interpolymers.
Inventors
- 👤 George S. Li
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 11:01
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/04; C08K5/09
Claims Analysis
Total Claims: 23
Claim 1
Independent Claim
51 words
A plasticized resin system comprising an intimate mixture of (a) an interpolymer derived from (i) at least one vinyl monomer and (ii) an α,β-unsaturated dicarboxylic acid anhydride or the lower alkyl esters thereof, and (b) a plasticizing amount of a hydroxy substituted fatty acid containing at least about 8 carbon atoms.
Claim 2
Dependent Claim
51 words
A plasticized resin system comprising an intimate mixture of (a) an interpolymer derived from (i) at least one vinyl monomer and (ii) an α,β-unsaturated dicarboxylic acid anhydride or the lower alkyl esters thereof, and (b) a plasticizing amount of a hydroxy substituted fatty acid containing at least about 8 carbon atoms.
Claim 3
Dependent Claim
23 words
The resin system of claim 1 wherein (ii) is maleic acid, fumaric acid, the lower alkyl esters of these acids or maleic anhydride.
Claim 4
Dependent Claim
36 words
The plasticized resin system of claim 1 wherein the interpolymer of (a) comprises from about 40 to 90 molar parts of at least one vinyl monomer (i) and about 10 to 60 molar parts of (ii).
Claim 5
Dependent Claim
67 words
The plasticized resin system of claim 1 wherein the vinyl monomer (i) is represented by the formula ##STR3## wherein A is a hydrogen or an alkyl group containing from 1 to about 4 carbon atoms, B is hydrogen or an alkyl, alkenyl, alkoxy, acyl, phenyl, substituted phenyl, nitrile, carboxyl, carboxylic ester, carboxylic amide group, or A, B and C' taken together form a cyclic or bicyclic group.
Claim 6
Dependent Claim
21 words
The plasticized resin system of claim 1 wherein the hydroxy substituted fatty acid contains from about 8 to 22 carbon atoms.
Claim 7
Dependent Claim
14 words
The plasticized resin system of claim 1 wherein the vinyl monomer is a styrene.
Claim 8
Dependent Claim
24 words
The plasticized resin system of claim 1 containing up to about 20 parts of the hydroxy substituted fatty acid per 100 parts of resin.
Claim 9
Dependent Claim
17 words
The plasticized resin system of claim 5 wherein the hydroxy substituted fatty acid is 12-hydroxy stearic acid.
Claim 10
Dependent Claim
22 words
The plasticized resin system of any one of claims 1-8 wherein the system also contains (C) at least one additional polar resin.
Claim 11
Dependent Claim
25 words
The plasticized resin system of claim 9 wherein the additional polar resin is a polycarbonate, polysulfone, polyester, polyamide, polyphenylene oxide, ABS, SAN or nitrile polymer.
Claim 12
Dependent Claim
32 words
The plasticized resin system of claim 9 wherein up to about 400 parts of the additional polar resin are included in the resin system per 100 parts of the interpolymer of (a).
Claim 13
Dependent Claim
22 words
The plasticized resin system of claim 9 wherein the resin system also contains up to about 40% by weight of glass fibers.
Claim 14
Dependent Claim
63 words
A plasticized resin system comprising an intimate mixture of (a) a interpolymer of a styrene and maleic anhydride, (b) from 0 to 400 parts, per 100 parts of (a), of at least one additional polar resin selected from the group consisting of polyesters, polycarbonates and polysulfones, and (c) a plasticizing amount of a hydroxy substituted fatty acid containing at least 8 carbon atoms.
Claim 15
Dependent Claim
63 words
A plasticized resin system comprising an intimate mixture of (a) a interpolymer of a styrene and maleic anhydride, (b) from 0 to 400 parts, per 100 parts of (a), of at least one additional polar resin selected from the group consisting of polyesters, polycarbonates and polysulfones, and (c) a plasticizing amount of a hydroxy substituted fatty acid containing at least 8 carbon atoms.
Claim 16
Dependent Claim
20 words
The plasticized resin system of claim 13 wherein the fatty acid contains from about 8 to about 22 carbon atoms.
Claim 17
Dependent Claim
27 words
The plasticized resin system of claim 13 wherein from about 1 to 20 parts of the hydroxy substituted fatty acid is included per 100 parts of resin.
Claim 18
Dependent Claim
29 words
The plasticized resin system of claim 13 wherein the interpolymer of (a) comprises from 40 to 90 parts of styrene and about 10 to 60 parts of maleic anhydride.
Claim 19
Dependent Claim
14 words
The plasticized resin system of claim 13 wherein the polar resin is a polysulfone.
Claim 20
Dependent Claim
14 words
The plasticized resin system of claim 13 wherein the polar resin is a polycarbonate.
Claim 21
Dependent Claim
14 words
The plasticized resin system of claim 13 wherein the polar resin is a polyester.
Claim 22
Dependent Claim
17 words
The plasticized resin system of claim 13 wherein the hydroxy substituted fatty acid is 12-hydroxy stearic acid.
Claim 23
Dependent Claim
19 words
The plasticized resin system of claim 13 wherein the resin also contains up to about 40% of glass fibers.
References Cited (Backward Citations)
US3719618A
Cited
US4128185A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1984-09-14 | 1985-03-16 | 1985-09-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-09-14 | 1989-03-16 | 1989-09-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-09-14 | 1993-03-16 | 1993-09-15 | $7700.00 | Window Closed / Lapsed |