US3758640A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Opolymer and a polyester polymer composition comprising vinylmonomer butadiene polymer graft c
Assignee: Hooker Chemical Corp
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Filing: 1970-07-20
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Granted: 1973-09-11
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Expires: 1990-07-20
Abstract
Abstract Polymers are produced by reacting a polymerizable monomer having aliphatic carbon-to-carbon unsaturation and a polymer of butadiene in an emulsion-suspension polymerization system. The polymers can be blended with another polymer of butadiene such as a polymer of a polymerizable monomer and polybutadiene to produce useful products or used alone to produce molded articles, laminates, extruded products, protective coatings and the like having superior tensile strength together with high impact strength. Blends with halogen containing polyesters and phosphorous containing polyesters or other materials are particularly useful in producing fire retardant polymers.
Inventors
- 👤 D Thorpe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 23:35
CPC Classifications
C; C08; C08F; C08F279/00; C08F279/02; C08K; C08K5/00; C08K5/02; C08K5/03; C08L; C08L51/00; C08L51/04; C08L67/00; C08L67/06
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
15 words
The polymer composition of claim 1 wherein said polyester is a halogen-containing or phosphorus-containing polyester.
Claim 2
Dependent Claim
24 words
The polymer composition of claim 1 wherein the polycarboxylic compound is an adduct of a hexahalocyclopentadiene and a dicarboxylic compound containing aliphatic carbon-to-carbon unsaturation.
Claim 3
Dependent Claim
59 words
The polymer cOmposition of claim 1 wherein the polycarboxylic compound is selected from the group consisting of chlorendic acid and chlorendic anhydride, wherein said polyester comprises 10 to 50 weight percent of said polymer composition and has a molecular weight of at least about 1,000, and wherein said graft copolymer comprises a graft copolymer of polybutadiene, styrene and acrylonitrile.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-09-10 | 1977-03-12 | 1977-09-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-09-10 | 1981-03-12 | 1981-09-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-09-10 | 1985-03-12 | 1985-09-11 | $7700.00 | Window Closed / Lapsed |