Patent US4299927A successfully refreshed from Google Patents.
US4299927A
Expired / Lapsed
US
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Molding compositions
Assignee: Eastman Chemical Co
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Filing: 1980-05-05
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Granted: 1981-11-10
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Expires: 2000-05-05
Abstract
Abstract Disclosed are polymer compositions comprising from about 75 to about 99% by weight of the reaction product of (a) from about 50 to about 90% by weight, based on the weight of the reaction product, of an ethylenically unsaturated polyester derived from an α,β-ethylenically unsaturated dicarboxylic acid with a saturated aliphatic polyol, and (b) from about 50 to about 10% by weight, based on the weight of the reaction product, of a modified polyolefin derived from an α,β-ethylenically unsaturated dicarboxylic acid anhydride and a polyolefin. The compositions preferably include from about 25 to about 1% by weight of a polymer or copolymer of an olefin in the reaction product, the polymer or copolymer having a molecular weight of from about 500 to about 50,000. The compositions also preferably include as compatibilizing agent an alkyl or alkenyl anhydride, the alkyl or alkenyl groups having from 8 to 22 carbon atoms.
Inventors
- 👤 John R. Dombroski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 10:06
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/04; C08K5/15; C08K5/151; C08K5/1535; C08K5/1539; C08F; C08F299/00; C08F299/02; C08F299/04; C08F299/0478; C08L; C08L51/00; C08L51/06
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
90 words
Polymer composition comprising the reaction product of (a) from about 50 to about 90% by weight of an ethylenically unsaturated polyester derived from an α,β-ethylenically unsaturated dicarboxylic acid with a saturated aliphatic polyol, (b) from about 50 to about 10% by weight of a modified polyolefin derived from an α,β-ethylenically unsaturated dicarboxylic acid anhydride and a polyolefin, and (c) from about 0.1 to about 10 percent by weight of succinic anhydride of the formula ##STR26## wherein R is an alkyl or alkenyl group having from 4 to 22 carbon atoms.
Claim 2
Dependent Claim
90 words
Polymer composition comprising the reaction product of (a) from about 50 to about 90% by weight of an ethylenically unsaturated polyester derived from an α,β-ethylenically unsaturated dicarboxylic acid with a saturated aliphatic polyol, (b) from about 50 to about 10% by weight of a modified polyolefin derived from an α,β-ethylenically unsaturated dicarboxylic acid anhydride and a polyolefin, and (c) from about 0.1 to about 10 percent by weight of succinic anhydride of the formula ##STR26## wherein R is an alkyl or alkenyl group having from 4 to 22 carbon atoms.
Claim 3
Dependent Claim
90 words
Polymer composition comprising the reaction product of (a) from about 55 to about 85% by weight of an ethylenically unsaturated polyester derived from an α,β-ethylenically unsaturated dicarboxylic acid with a saturated aliphatic polyol, (b) from about 45 to about 15% by weight of a modified polyolefin derived from an α,β-ethylenically unsaturated dicarboxylic acid anhydride and a polyolefin, and (c) from about 0.2 to about 2.0 percent by weight of succinic anhydride of the formula ##STR27## wherein R is an alkyl or alkenyl group having from 8 to 18 carbon atoms.
Claim 4
Dependent Claim
90 words
Polymer composition comprising the reaction product of (a) from about 55 to about 85% by weight of an ethylenically unsaturated polyester derived from an α,β-ethylenically unsaturated dicarboxylic acid with a saturated aliphatic polyol, (b) from about 45 to about 15% by weight of a modified polyolefin derived from an α,β-ethylenically unsaturated dicarboxylic acid anhydride and a polyolefin, and (c) from about 0.2 to about 2.0 percent by weight of succinic anhydride of the formula ##STR27## wherein R is an alkyl or alkenyl group having from 8 to 18 carbon atoms.
Claim 5
Dependent Claim
14 words
Polymer composition according to claim 2 wherein the alkyl or alkenyl group is linear.
Claim 6
Dependent Claim
19 words
Polymer composition according to claim 2 wherein R is an alkyl group having from 8 to 18 carbon atoms.
Claim 7
Dependent Claim
19 words
Polymer composition according to claim 2 wherein R is an alkenyl group having from 8 to 18 carbon atoms.
Claim 8
Dependent Claim
17 words
Polymer composition according to claim 1 wherein said polyester is derived at least in part from 2,2,4-trimethyl-1,3-pentanediol.
Claim 9
Dependent Claim
138 words
Polymer composition comprising I. from about 75 to about 99% by weight of the reaction product of (a) from about 50 to about 90% by weight of an ethylenically unsaturated polyester derived from an α,β-ethylenically unsaturated dicarboxylic acid with a saturated aliphatic polyol, and (b) from about 50 to about 10% by weight of a modified polyolefin derived from an α,β-ethylenically unsaturated dicarboxylic acid anhydride and a polyolefin, and (c) from about 0.1 to about 10 percent by weight of succinic anhydride of the formula ##STR28## wherein R is an alkyl or alkenyl group having from 4 to 22 carbon atoms II. from about 25 to about 1% by weight of a polymer or copolymer of an olefin dispersed in said reaction product, said polymer or copolymer having a molecular weight of from about 500 to about 50,000.
Claim 10
Dependent Claim
138 words
Polymer composition comprising I. from about 75 to about 99% by weight of the reaction product of (a) from about 50 to about 90% by weight of an ethylenically unsaturated polyester derived from an α,β-ethylenically unsaturated dicarboxylic acid with a saturated aliphatic polyol, and (b) from about 50 to about 10% by weight of a modified polyolefin derived from an α,β-ethylenically unsaturated dicarboxylic acid anhydride and a polyolefin, and (c) from about 0.1 to about 10 percent by weight of succinic anhydride of the formula ##STR28## wherein R is an alkyl or alkenyl group having from 4 to 22 carbon atoms II. from about 25 to about 1% by weight of a polymer or copolymer of an olefin dispersed in said reaction product, said polymer or copolymer having a molecular weight of from about 500 to about 50,000.
Claim 11
Dependent Claim
33 words
Polymer composition according to claim 7 wherein said succinic anhydride is present in an amount of from about 0.2 to about 2.0 percent by weight, based on the weight of the reaction product.
References Cited (Backward Citations)
US4258143A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1984-11-09 | 1985-05-11 | 1985-11-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-11-09 | 1989-05-11 | 1989-11-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-11-09 | 1993-05-11 | 1993-11-10 | $7700.00 | Window Closed / Lapsed |