US4713415A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rubber modified nylon composition
Assignee: Bayer Antwerpen NV
•
Filing: 1986-03-21
•
Granted: 1987-12-15
•
Expires: 2006-03-21
Abstract
Abstract A polyamide composition of improved impact comprising a blend of components (A) 20 to 79.5 weight percent of a graft rubber composition of a graft polymer of methyl (meth)acrylate and/or (meth)acrylonitrile and a vinylaromatic monomer grafted onto a substrate rubber, (B) 94.5 to 20 weight percent of a polyamide resin, an (C) 1 to 60 weight percent of a polymer compatibilizer which contains from about 0.05 to 4.0 mole percent of a comonomer containing a functional group which reacts with the polyamide resin.
Inventors
- 👤 Richard E. Lavengood
- 👤 Allen R. Padwa
- 👤 Alva F. Harris
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 02:14
CPC Classifications
C; C08; C08L; C08L25/00; C08L25/02; C08L25/04; C08L25/08; C08L25/12; C08L51/00; C08L51/04; C08L77/00
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
200 words
A polymer blend comprising: (A) 5 to 79.5 weight percent of a graft rubber composition comprising a graft copolymer of from 15 to 55 parts by weight of acrylonitrile and from 85 to 45 parts by weight of styrene, wherein monomers of acrylonitrile and styrene are polymerized in the presence of an grafted onto a substrate rubber having a glass transition temperature below 0° C., wherein the weight percentage of the rubber is in the range of from 5 to 80 percent and the weight percentage of the graft copolymer is in the range of 95 to 20 percent of the graft rubber composition; (B) 94.5 to 20 weight percent of a nylon polyamide resin; and (C) 0.5 to 60 weight percent of a compatibilizer terpolymer of styrene, acrylonitrile and maleic anhydride capable of reaction with the polyamide resin, having a styrene:acrylonitrile weight ratio of 80:20 to 50:50 and a maleic anhydride content of 0.3 to 1.5 mole percent and wherein said compatibilizer terpolymer is miscible with the graft copolymer of said graft rubber composition; wherein the percentage weights of components A, B and C are based on the total weight of components A, B and C in the blend.
Claim 2
Dependent Claim
200 words
A polymer blend comprising: (A) 5 to 79.5 weight percent of a graft rubber composition comprising a graft copolymer of from 15 to 55 parts by weight of acrylonitrile and from 85 to 45 parts by weight of styrene, wherein monomers of acrylonitrile and styrene are polymerized in the presence of an grafted onto a substrate rubber having a glass transition temperature below 0° C., wherein the weight percentage of the rubber is in the range of from 5 to 80 percent and the weight percentage of the graft copolymer is in the range of 95 to 20 percent of the graft rubber composition; (B) 94.5 to 20 weight percent of a nylon polyamide resin; and (C) 0.5 to 60 weight percent of a compatibilizer terpolymer of styrene, acrylonitrile and maleic anhydride capable of reaction with the polyamide resin, having a styrene:acrylonitrile weight ratio of 80:20 to 50:50 and a maleic anhydride content of 0.3 to 1.5 mole percent and wherein said compatibilizer terpolymer is miscible with the graft copolymer of said graft rubber composition; wherein the percentage weights of components A, B and C are based on the total weight of components A, B and C in the blend.
Claim 3
Dependent Claim
217 words
A polymer blend comprising: (A) 5 to 79.5 weight percent of a graft rubber composition comprising a graft copolymer of from 15 to 85 parts by weight of at least one monomer selected from the group consisting of C 1 to C 4 alkyl methacrylates, C 1 to C 4 alkyl acrylates, methacrylonitrile and acrylonitrile and from 85 to 15 parts by weight of a vinyl aromatic monomer, wherein the monomers are polymerized in the presence of and grafted onto a substrate rubber having a glass transition temperature below 0° C., wherein the weight percentage of the rubber is in the range of from 5 to 80 percent and the weight percentage of the graft copolymer is in the range of 95 to 20 percent of the graft rubber composition; (B) 94.5 to 20 weight percent of a nylon polyamide resin; and (C) 0.5 to 60 weight percent of a compatibilizer terpolymer of a styrene monomer, acrylonitrile and maleic anhydride and having a styrene monomer:acrylonitrile weight ratio of 80:20 to 50:50, a maleic anhydride content of 0.3 to 1.5 mole percent and an average functionality in the range of one to ten; wherein the percentage weights of components A, B and C are based on the total weight of components A, B and C in the blend.
Claim 4
Dependent Claim
217 words
A polymer blend comprising: (A) 5 to 79.5 weight percent of a graft rubber composition comprising a graft copolymer of from 15 to 85 parts by weight of at least one monomer selected from the group consisting of C 1 to C 4 alkyl methacrylates, C 1 to C 4 alkyl acrylates, methacrylonitrile and acrylonitrile and from 85 to 15 parts by weight of a vinyl aromatic monomer, wherein the monomers are polymerized in the presence of and grafted onto a substrate rubber having a glass transition temperature below 0° C., wherein the weight percentage of the rubber is in the range of from 5 to 80 percent and the weight percentage of the graft copolymer is in the range of 95 to 20 percent of the graft rubber composition; (B) 94.5 to 20 weight percent of a nylon polyamide resin; and (C) 0.5 to 60 weight percent of a compatibilizer terpolymer of a styrene monomer, acrylonitrile and maleic anhydride and having a styrene monomer:acrylonitrile weight ratio of 80:20 to 50:50, a maleic anhydride content of 0.3 to 1.5 mole percent and an average functionality in the range of one to ten; wherein the percentage weights of components A, B and C are based on the total weight of components A, B and C in the blend.
Claim 5
Dependent Claim
20 words
A polymer blend according to claim 2 wherein component A comprises a graft copolymer of acrylonitrile and a styrene monomer.
Claim 6
Dependent Claim
241 words
A polymer blend comprising: (A) 5 to 79.5 weight percent of a graft rubber composition comprising a graft copolymer of from 15 to 85 parts by weight of at least one monomer selected from the group consisting of C 1 to C 4 alkyl methacrylates, C 1 to C 4 alkyl acrylates, methacrylonitrile and acrylonitrile and from 85 to 15 parts by weight of a vinyl aromatic monomer, wherein the monomers are polymerized in the presence of and grafted onto a substrate rubber having a glass transition temperature below 0° C., wherein the weight percentage of the rubber is in the range of from 5 to 80 percent and the weight percentage of the graft copolymer is in the range of 95 to 20 percent of the graft rubber composition; (B) 94.5 to 20 weight percent of a nylon polyamide resin; and (C) 0.5 to 60 weight percent of a compatibilizer terpolymer of (1) a styrene monomer, (2) at least one monomer selected from the group consisting of C 1 to C 4 alkyl methacrylates, C 1 to C 4 alkyl acrylate methacrylonitrile and acrylonitrile and (3) 0.3 to 1.5 mole percent of a functionalized monomer capable of reaction with the polyamide resin wherein the styrene monomer:at least one monomer weight ratio is 80:20 to 50:50; wherein the percentage weights of components A, B and C are based on the total weight of components A, B and C in the blend.
Claim 7
Dependent Claim
241 words
A polymer blend comprising: (A) 5 to 79.5 weight percent of a graft rubber composition comprising a graft copolymer of from 15 to 85 parts by weight of at least one monomer selected from the group consisting of C 1 to C 4 alkyl methacrylates, C 1 to C 4 alkyl acrylates, methacrylonitrile and acrylonitrile and from 85 to 15 parts by weight of a vinyl aromatic monomer, wherein the monomers are polymerized in the presence of and grafted onto a substrate rubber having a glass transition temperature below 0° C., wherein the weight percentage of the rubber is in the range of from 5 to 80 percent and the weight percentage of the graft copolymer is in the range of 95 to 20 percent of the graft rubber composition; (B) 94.5 to 20 weight percent of a nylon polyamide resin; and (C) 0.5 to 60 weight percent of a compatibilizer terpolymer of (1) a styrene monomer, (2) at least one monomer selected from the group consisting of C 1 to C 4 alkyl methacrylates, C 1 to C 4 alkyl acrylate methacrylonitrile and acrylonitrile and (3) 0.3 to 1.5 mole percent of a functionalized monomer capable of reaction with the polyamide resin wherein the styrene monomer:at least one monomer weight ratio is 80:20 to 50:50; wherein the percentage weights of components A, B and C are based on the total weight of components A, B and C in the blend.
Claim 8
Dependent Claim
20 words
A polymer blend according to claim 4 wherein component A comprises a graft copolymer of acrylonitrile and a styrene monomer.
Claim 9
Dependent Claim
14 words
A polymer blend according to claim 5 wherein said functionalized monomer is maleic anhydride.
Claim 10
Dependent Claim
16 words
A polymer blend according to claim 6 wherein said terpolymer is miscible with said graft copolymer.
References Cited (Backward Citations)
JPS5448850A
Cited
EP0068132A2
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1990-12-14 | 1991-06-15 | 1991-12-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-12-14 | 1995-06-15 | 1995-12-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-12-14 | 1999-06-15 | 1999-12-15 | $7700.00 | Window Closed / Lapsed |