US4654402A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Graft polymer of acrylic ester rubber and polyolefin
Assignee: Advanced Elastomer Systems LP
•
Filing: 1985-09-09
•
Granted: 1987-03-31
•
Expires: 2005-09-09
Abstract
Abstract Compatibilized polymer blends are described comprising a blend of olefin polymer, cross-linkable acrylic ester copolymer rubber, and a compatibilizing amount of a graft copolymer comprising acrylic ester copolymer compatibilizing segments and olefin polymer compatibilizing segments.
Inventors
- 👤 Raman Patel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 21:06
CPC Classifications
C; C08; C08L; C08L23/00; C08L23/02; C08K; C08K3/00; C08K3/34; C08K3/346; C08K3/36; C08K5/00; C08K5/04; C08K5/09; C08K5/13; C08K5/14; C08L23/10; C08L33/00; C08L33/04; C08L33/06; C08L33/08; C08L2312/00; C08L51/00; C08L51/06; Y; Y10; Y10S; Y10S525/00; Y10S525/931
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
89 words
A graft polymer comprising two different polymeric blocks A and B, which blocks are linked by the reaction of functional groups on each block, block A comprising a crystalline, essentially saturated homopolymer of ethylene or propylene which homopolymer has been modified at attach functional groups thereto derived from methylol phenolic material or from maleic acid or anhydride, block B comprising a rubbery copolymer of ethylene and an alkyl acrylate, which copolymer is cross-linkable by virtue of containing reactive groups selected from carboxy, hydroxy, halo, amino, isocyanate, sulfonyl or sulfonate.
Claim 2
Dependent Claim
89 words
A graft polymer comprising two different polymeric blocks A and B, which blocks are linked by the reaction of functional groups on each block, block A comprising a crystalline, essentially saturated homopolymer of ethylene or propylene which homopolymer has been modified at attach functional groups thereto derived from methylol phenolic material or from maleic acid or anhydride, block B comprising a rubbery copolymer of ethylene and an alkyl acrylate, which copolymer is cross-linkable by virtue of containing reactive groups selected from carboxy, hydroxy, halo, amino, isocyanate, sulfonyl or sulfonate.
Claim 3
Dependent Claim
17 words
The graft polymer of claim 1 wherein block A is polypropylene and block B contains carboxy groups.
Claim 4
Dependent Claim
22 words
The graft polymer of claim 2 wherein block B is a terpolymer from ethylene, an alkyl acrylate and an unsaturated carboxylic acid.
Claim 5
Dependent Claim
37 words
The graft polymer of claim 3 wherein block B contains at least 50 mole percent of ethylene, about 0.5 to 10 mole percent of carboxylic acid and up to about 49.5 mole percent of an alkyl acrylate.
Claim 6
Dependent Claim
39 words
The graft polymer of claim 4 wherein block A contains groups derived from maleic acid or anhydride and blocks A and B are linked through a grafting agent which is an organic compound containing at least two amino groups.
Claim 7
Dependent Claim
13 words
The graft polymer of claim 5 wherein the grafting agent is methylene dianiline.
References Cited (Backward Citations)
US3236914A
Cited
GB1283213A
Cited
US3972961A
Cited
US3966672A
Cited
US4129608A
Cited
US4211691A
Cited
US4278572A
Cited
US4299931A
Cited
US4366289A
Cited
US4528329A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1990-03-30 | 1990-09-29 | 1991-03-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-03-30 | 1994-09-29 | 1995-03-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-03-30 | 1998-09-29 | 1999-03-31 | $7700.00 | Window Closed / Lapsed |