US4308355A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for terpolymer polyblends having high gloss and ductility
Assignee: Bayer Antwerpen NV
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Filing: 1980-04-14
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Granted: 1981-12-29
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Expires: 2000-04-14
Abstract
Abstract The invention relates to a process for preparing terpolymer polyblends having high gloss and ductility in formed articles, wherein, rubber particles in an aqueous latex are reacted with an alkenyl aromatic, alkenyl nitrile and alkyl acrylate monomer formulation such that said rubber particles become grafted with at least a portion of said monomers while said monomers form a matrix terpolymer phase of said monomers followed by separating said matrix phase terpolymer and said grafted rubber particles from said latex as a terpolymer polyblend. The invention also relates to a composition of said process.
Inventors
- 👤 Edward F. Tokas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 00:28
CPC Classifications
C; C08; C08F; C08F279/00; C08F279/02; C08L; C08L25/00; C08L25/02; C08L25/04; C08L25/08; C08L25/12; C08L25/14; C08L51/00; C08L51/04
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
107 words
A terpolymer polyblend composition comprising: A. a matrix phase terpolymer of alkenyl aromatic, alkenyl nitrile and alkyl acrylate monomers, B. a diene rubber phase grafted with said monomers as graft terpolymer and dispersed in said matrix phase as rubber particles having an average particle size of about 0.2 to 0.7 microns, said matrix and graft terpolymers having present about 1 to 15% by weight of said alkyl acrylate monomer, C. said terpolymer polyblend having high gloss and ductility in formed articles, said diene rubber being a polybutadiene rubber, said terpolymer polyblend being prepared by the emulsion polymerization of said monomers in the presence of said rubber particles.
Claim 2
Dependent Claim
107 words
A terpolymer polyblend composition comprising: A. a matrix phase terpolymer of alkenyl aromatic, alkenyl nitrile and alkyl acrylate monomers, B. a diene rubber phase grafted with said monomers as graft terpolymer and dispersed in said matrix phase as rubber particles having an average particle size of about 0.2 to 0.7 microns, said matrix and graft terpolymers having present about 1 to 15% by weight of said alkyl acrylate monomer, C. said terpolymer polyblend having high gloss and ductility in formed articles, said diene rubber being a polybutadiene rubber, said terpolymer polyblend being prepared by the emulsion polymerization of said monomers in the presence of said rubber particles.
Claim 3
Dependent Claim
24 words
A composition of claim 1 wherein said alkenyl aromatic monomer is styrene, alpha-methyl styrene, chlorostyrene, bromostyrene, aralkyl styrene and arhaloalkyl styrene or mixtures thereof.
Claim 4
Dependent Claim
17 words
A composition of claim 1 wherein said alkenyl nitrile monomer is acrylonitrile, metha-acrylonitrile, ethyl-acrylonitrile or mixtures thereof.
Claim 5
Dependent Claim
22 words
A composition of claim 1 wherein said alkenyl acrylate monomer is selected from the group of C 1 -C 12 alkyl acrylates.
Claim 6
Dependent Claim
12 words
A composition of claim 1 wherein said alkyl acrylate is butyl acrylate.
Claim 7
Dependent Claim
136 words
A terpolymer polyblend composition comprising: A. a matrix phase terpolymer of alkenyl aromatic, alkenyl nitrile and alkyl acrylate monomers, B. a diene rubber phase grafted with said monomers as graft terpolymer and dispersed in said matrix phase as rubber particles having an average particle size of about 0.2 to 0.7 microns, said matrix and graft terpolymers having present about 1 to 15% by weight of said alkyl acrylate monomer, C. said terpolymer polyblend having high gloss and ductility in formed articles, said diene rubber being a polybutadiene rubber, said terpolymer polyblend being prepared by the emulsion polymerization of said monomers in the presence of said rubber particles and said terpolymer polyblend having present a copolymer of said alkenyl aromatic and alkenyl nitrile monomers in an amount up to about 50% by weight of said matrix phase.
Claim 8
Dependent Claim
136 words
A terpolymer polyblend composition comprising: A. a matrix phase terpolymer of alkenyl aromatic, alkenyl nitrile and alkyl acrylate monomers, B. a diene rubber phase grafted with said monomers as graft terpolymer and dispersed in said matrix phase as rubber particles having an average particle size of about 0.2 to 0.7 microns, said matrix and graft terpolymers having present about 1 to 15% by weight of said alkyl acrylate monomer, C. said terpolymer polyblend having high gloss and ductility in formed articles, said diene rubber being a polybutadiene rubber, said terpolymer polyblend being prepared by the emulsion polymerization of said monomers in the presence of said rubber particles and said terpolymer polyblend having present a copolymer of said alkenyl aromatic and alkenyl nitrile monomers in an amount up to about 50% by weight of said matrix phase.
References Cited (Backward Citations)
US3449471A
Cited
US3557251A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1984-12-28 | 1985-06-29 | 1985-12-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-12-28 | 1989-06-29 | 1989-12-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-12-28 | 1993-06-29 | 1993-12-29 | $7700.00 | Window Closed / Lapsed |