US4021510A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cyano-substituted norbornene polymers blended with polyvinyl chloride resins
Assignee: Resonac Holdings Corp
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Filing: 1974-03-19
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Granted: 1977-05-03
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Expires: 1994-03-19
Abstract
Abstract A resin composition is prepared from 5 to 95 parts by weight of a polymer prepared by ring-opening polymerization of cyano-substituted norbornene derivatives having at least one nitrile group or substituents including nitrile group and 95 to 5 parts by weight of (a) homopolymer or copolymer of vinyl chloride, (b) styrene homopolymer or vinyl copolymer containing at least 50 per cent by weight of at least one vinyl compound selected from the group consisting of styrene, acrylonitrile and methyl methacrylate, (c) said homopolymer or copolymer compounded with elastomer, or (d) graft copolymer obtained by grafting at least one of said vinyl compounds to said elastomer.
Inventors
- 👤 Takashi Ueshima
- 👤 Yasuzi Tanaka
- 👤 Toshiro Yokoyama
- 👤 Shoichi Kobayashi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 12:51
CPC Classifications
C; C08; C08L; C08L27/00; C08L27/02; C08L27/04; C08L27/06; C08G; C08G61/00; C08G61/02; C08G61/04; C08G61/06; C08G61/08; C08L45/00; C08L65/00
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
53 words
Resin compositions comprising 5 to 90 parts by weight of homopolymer prepared by ring-opening polymerization of 5-cyano bicyclo[2,2,1]-heptene-2 and 95 to 10 parts by weight of polyvinyl chloride resin selected from the group consisting of vinyl chloride homopolymer, vinyl chloride-vinyl acetate copolymers, vinyl chloride-ethylene copolymers, vinyl chloride-propylene copolymers and vinyl chloride-vinyl ether copolymers.
Claim 2
Dependent Claim
53 words
Resin compositions comprising 5 to 90 parts by weight of homopolymer prepared by ring-opening polymerization of 5-cyano bicyclo[2,2,1]-heptene-2 and 95 to 10 parts by weight of polyvinyl chloride resin selected from the group consisting of vinyl chloride homopolymer, vinyl chloride-vinyl acetate copolymers, vinyl chloride-ethylene copolymers, vinyl chloride-propylene copolymers and vinyl chloride-vinyl ether copolymers.
Claim 3
Dependent Claim
42 words
Resin compositions comprising 10 to 80 parts by weight of homopolymer prepared by ring-opening polymerization of 5-cyano bicyclo[2,2,1]-heptene-2 and 90 to 20 parts by weight of polyvinyl chloride selected from the group consisting of vinyl chloride homopolymer and copolymer of vinyl chloride.
Claim 4
Dependent Claim
42 words
Resin compositions comprising 10 to 80 parts by weight of homopolymer prepared by ring-opening polymerization of 5-cyano bicyclo[2,2,1]-heptene-2 and 90 to 20 parts by weight of polyvinyl chloride selected from the group consisting of vinyl chloride homopolymer and copolymer of vinyl chloride.
Claim 5
Dependent Claim
34 words
Resin compositions according to claim 2 wherein the copolymer of vinyl chloride is selected from the group consisting of vinyl chloride-vinyl acetate copolymers, vinyl chloride-ethylene copolymers, vinyl chloride-propylene copolymers and vinyl chloride-vinyl ether copolymers.
References Cited (Backward Citations)
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US3277036A
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US3330815A
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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) | 1980-05-02 | 1980-11-01 | 1981-05-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-05-02 | 1984-11-01 | 1985-05-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-05-02 | 1988-11-01 | 1989-05-03 | $7700.00 | Window Closed / Lapsed |