US4659766A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Graft copolymer - plasticized PVC blends as thermoplastic elastomers
Assignee: GE Chemicals Inc
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Filing: 1983-12-19
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Granted: 1987-04-21
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Expires: 2003-12-19
Abstract
Abstract Compositions comprising high rubber ABS graft copolymers, PVC and plasticizers for PVC are useful as thermoplastic elastomers. Formulations exhibiting good solvent resistance, abrasion and compression set characteristics may be used in shoe soling, wire and cable covering, hose and tubing and automotive applications.
Inventors
- 👤 John C. Falk
- 👤 Leland B. Kliever
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 16:43
CPC Classifications
C; C08; C08L; C08L27/00; C08L27/02; C08L27/04; C08L27/06; C08L55/00; C08L55/02; C08L51/00; C08L51/04
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
46 words
A thermoplastic elastomer composition comprising: (a) from 70 to 30 parts by weight of a high rubber graft copolymer; (b) from 30 to 70 parts by weight of a PVC resin; and (c) from 45 to 65 parts by weight of a plasticizer for PVC resins.
Claim 2
Dependent Claim
46 words
A thermoplastic elastomer composition comprising: (a) from 70 to 30 parts by weight of a high rubber graft copolymer; (b) from 30 to 70 parts by weight of a PVC resin; and (c) from 45 to 65 parts by weight of a plasticizer for PVC resins.
Claim 3
Dependent Claim
65 words
The composition of claim 1 wherein the high rubber graft copolymer is a graft copolymer comprising less than 50 wt% of a rigid graft phase formed of at least one monomer selected from the group consisting of vinyl monomers, vinylidene monomers and mixtures thereof, and correspondingly greater than 50 wt% of a rubbery substrate selected from the group consisting of 1,3-diene polymers and copolymers thereof.
Claim 4
Dependent Claim
37 words
The composition of claim 1 wherein the high rubber graft copolymer is an ABS graft copolymer consisting of greater than 50 wt% of a rubbery substrate copolymer and, correspondingly, less than 50 wt% of rigid graft phase.
Claim 5
Dependent Claim
66 words
A thermoplastic elastomer composition comprising: (a) from 70 to 30 parts by weight of an ABS graft copolymer consisting of greater than 50 wt% of a rubbery substrate and, correspondingly, less than 50 wt% of a rigid graft phase; (b) from 30 to 70 parts by weight of a PVC resin; and (c) from 45 to 65 parts by weight of a plasticizer for PVC resins.
Claim 6
Dependent Claim
66 words
A thermoplastic elastomer composition comprising: (a) from 70 to 30 parts by weight of an ABS graft copolymer consisting of greater than 50 wt% of a rubbery substrate and, correspondingly, less than 50 wt% of a rigid graft phase; (b) from 30 to 70 parts by weight of a PVC resin; and (c) from 45 to 65 parts by weight of a plasticizer for PVC resins.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1990-04-20 | 1990-10-20 | 1991-04-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-04-20 | 1994-10-20 | 1995-04-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-04-20 | 1998-10-20 | 1999-04-21 | $7700.00 | Window Closed / Lapsed |