Patent US4588776A successfully refreshed from Google Patents.
US4588776A
Expired / Lapsed
US
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Polyvinyl halide polymer composition and shaped articles produced therefrom
Assignee: Monsanto Co
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Filing: 1984-06-29
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Granted: 1986-05-13
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Expires: 2004-06-29
Abstract
Abstract A polymer composition adapted for use in producing polyvinyl halide polymer products comprising a blend of a vinyl halide polymer and a particulate terpolymer having a molecular weight of at least about 100,000 and a glass transition temperature of at least about 50 DEG C. The terpolymer comprises repeating units derived from an olefin, a diester of an addition polymerizable unsaturated dicarboxylic acid, and a solubilizing monomer which promotes compatibility of the terpolymer with the vinyl halide polymer. A shaped plastic article produced from this composition, and method of producing the shaped article are also disclosed.
Inventors
- 👤 Vladimir Bekker
- 👤 Wayne J. Buchheim
- 👤 William Vanderlinde
- 👤 Donald S. T. Wang
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 07:02
CPC Classifications
C; C08; C08F; C08F246/00; C08L; C08L27/00; C08L27/02; C08L27/04; C08L27/06; C08F222/00; C08F222/10; C08F222/12; C08F222/14; C08F222/145; C08L25/00; C08L25/02; C08L25/04; C08L25/08
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
114 words
A polymer composition comprising a blend of a vinyl halide polymer and a particulate polymer, said particulate polymer having a molecular weight of at least about 100,000 and a glass transition temperature of between about 60° C. and 100° C. and comprising between about 30% and about 90% by weight of repeating units derived from an olefin, between about 1% and about 30% by weight of diester repeating units derived from a diester of an addition polymerizable unsaturated dicarboxylic acid, and between about 1% and about 40% by weight of repeating units derived from a solubilizing monomer selected from acrylonitrile and methacrylonitrile which promotes compatibility of the particulate polymer with said vinyl halide polymer.
Claim 2
Dependent Claim
114 words
A polymer composition comprising a blend of a vinyl halide polymer and a particulate polymer, said particulate polymer having a molecular weight of at least about 100,000 and a glass transition temperature of between about 60° C. and 100° C. and comprising between about 30% and about 90% by weight of repeating units derived from an olefin, between about 1% and about 30% by weight of diester repeating units derived from a diester of an addition polymerizable unsaturated dicarboxylic acid, and between about 1% and about 40% by weight of repeating units derived from a solubilizing monomer selected from acrylonitrile and methacrylonitrile which promotes compatibility of the particulate polymer with said vinyl halide polymer.
Claim 3
Dependent Claim
45 words
A polymer composition as set forth in claim 1 wherein: said olefin comprises a vinyl aromatic compound; and said diester is selected from dialkyl fumarates, diaryl fumarates, aryl alkyl fumarates, dialkyl maleates, diaryl maleates, aryl alkyl maleates, dialkyl itaconates, diaryl itaconates, and aryl alkyl itaconates.
Claim 4
Dependent Claim
15 words
A polymer composition as set forth in claim 1 wherein said solubilizing monomer is acrylonitrile.
Claim 5
Dependent Claim
15 words
A polymer composition as set forth in claim 2 wherein said solubilizing monomer is acrylonitrile.
Claim 6
Dependent Claim
16 words
A polymer composition as set forth in claim 2 wherein said diester comprises a dialkyl fumarate.
Claim 7
Dependent Claim
59 words
A polymer composition as set forth in claim 1 wherein said particulate polymer comprises between about 60% and about 85% of repeating units derived from said olefin, between about 5% and about 20% by weight of repeating units derived from said diester and between about 10% and about 20% by weight of repeating units derived from said solubilizing monomer.
Claim 8
Dependent Claim
25 words
A polymer composition as set forth in claim 1 wherein said olefin is styrene, said diester is dibutyl fumarate and said solubilizing monomer is acrylonitrile.
Claim 9
Dependent Claim
147 words
A polymer composition adapted for use in producing vinyl halide polymer products, comprising a blend of a vinyl halide polymer and a particulate polymer having a molecular weight of at least about 100,000 and a glass transition temperature of between about 60° C. and 100° C., said particulate polymer comprising between about 30% and about 90% by weight of repeating units derived from an olefin, between about 1% and about 30% by weight of diester repeating units derived from a diester of an addition polymerizable unsaturated dicarboxylic acid, and between about 1% and about 40% by weight of repeating units derived from a solubilizing monomer selected from acrylonitrile and methacrylonitrile which promotes compatibility of the particulate polymer with said vinyl halide polymer, said particulate polymer having a particle size distribution such that at least about 90% by weight of the particles are smaller than about 100 microns.
Claim 10
Dependent Claim
147 words
A polymer composition adapted for use in producing vinyl halide polymer products, comprising a blend of a vinyl halide polymer and a particulate polymer having a molecular weight of at least about 100,000 and a glass transition temperature of between about 60° C. and 100° C., said particulate polymer comprising between about 30% and about 90% by weight of repeating units derived from an olefin, between about 1% and about 30% by weight of diester repeating units derived from a diester of an addition polymerizable unsaturated dicarboxylic acid, and between about 1% and about 40% by weight of repeating units derived from a solubilizing monomer selected from acrylonitrile and methacrylonitrile which promotes compatibility of the particulate polymer with said vinyl halide polymer, said particulate polymer having a particle size distribution such that at least about 90% by weight of the particles are smaller than about 100 microns.
Claim 11
Dependent Claim
25 words
A polymer composition as set forth in claim 8 wherein said olefin is styrene, said diester is dibutyl fumarate and said solubilizing monomer is acrylonitrile.
Claim 12
Dependent Claim
120 words
A shaped plastic article fabricated of a polymer blend comprising a vinyl halide polymer and a processing aid, said processing aid comprising a particulate polymer having a molecular weight of at least about 100,000 and a glass transition temperature of between about 60° C. and 100° C. and containing between about 30% and about 90% by weight of repeating units derived from an olefin, between about 1% and about 30% by weight of diester repeating units derived from a diester of an addition polymerizable unsaturated dicarboxylic acid, and between about 1% and about 40% by weight repeating units derived from a solubilizing monomer selected from acrylonitrile and methacrylonitrile which promotes compatability of the particulate polymer with said vinyl halide polymer.
Claim 13
Dependent Claim
120 words
A shaped plastic article fabricated of a polymer blend comprising a vinyl halide polymer and a processing aid, said processing aid comprising a particulate polymer having a molecular weight of at least about 100,000 and a glass transition temperature of between about 60° C. and 100° C. and containing between about 30% and about 90% by weight of repeating units derived from an olefin, between about 1% and about 30% by weight of diester repeating units derived from a diester of an addition polymerizable unsaturated dicarboxylic acid, and between about 1% and about 40% by weight repeating units derived from a solubilizing monomer selected from acrylonitrile and methacrylonitrile which promotes compatability of the particulate polymer with said vinyl halide polymer.
Claim 14
Dependent Claim
26 words
A shaped plastic article as set forth in claim 10 wherein: said olefin is styrene; said diester is dibutyl fumarate; and said solubilizing monomer is acrylonitrile.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-05-12 | 1989-11-11 | 1990-05-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-05-12 | 1993-11-11 | 1994-05-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-05-12 | 1997-11-11 | 1998-05-13 | $7700.00 | Window Closed / Lapsed |