US4507434A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Blends of vinyl halide-polyolefin graft polymers and polycarbonate polymers
Assignee: Occidental Chemical Corp
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Filing: 1983-10-12
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Granted: 1985-03-26
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Expires: 2003-10-12
Abstract
Abstract A novel thermoplastic polymer composition comprises a high impact vinyl halide polymer, particularly a vinyl halide-polyolefin graft polymer, and a polycarbonate.
Inventors
- 👤 Gautam R. Ranade
- 👤 Gideon Salee
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 22:51
CPC Classifications
C; C08; C08L; C08L51/00; C08L51/06; C08L69/00
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
16 words
A polymer composition consisting essentially of a vinyl halide hydrocarbon polyolefin graft polymer and a polycarbonate.
Claim 2
Dependent Claim
16 words
A polymer composition consisting essentially of a vinyl halide hydrocarbon polyolefin graft polymer and a polycarbonate.
Claim 3
Dependent Claim
81 words
The polymer composition of claim 1 wherein the vinyl halide-hydrocarbon polyolefin graft polymer comprises the product of bulk liquid phase polymerization of vinyl halide monomer alone or in combination with up to 50% by weight based on the total weight of monomer of another ethylenically unsaturated monomer copolymerizable therewith, in the presence of a free radical initiator compound for said polymerization, and about 0.05% to about 20% by weight, based upon said vinyl halide monomer, of a hydrocarbon olefin trunk polymer.
Claim 4
Dependent Claim
13 words
The polymer composition of claim 2 wherein the vinyl halide is vinyl chloride.
Claim 5
Dependent Claim
38 words
A polymer composition consisting essentially of a vinyl chloride polyolefin graft polymer wherein the polyolefin is present in a proportion of about 2 to about 20 weight percent based on the weight of vinyl chloride, and a polycarbonate.
Claim 6
Dependent Claim
38 words
A polymer composition consisting essentially of a vinyl chloride polyolefin graft polymer wherein the polyolefin is present in a proportion of about 2 to about 20 weight percent based on the weight of vinyl chloride, and a polycarbonate.
Claim 7
Dependent Claim
29 words
The polymer composition of claim 4 where the polyolefin is present in a proportion of about 5 to about 18 weight percent based on the weight of vinyl chloride.
Claim 8
Dependent Claim
19 words
The polymer composition of claim 5 wherein the polyolefin is a terpolymer of ethylene propylene and a diene monomer.
Claim 9
Dependent Claim
33 words
The polymer composition of claim 6 wherein the vinyl chloride polyolefin graft polymer is present in a proportion of about 40 to about 60 weight percent based on the weight of polymer components.
Claim 10
Dependent Claim
12 words
The polymer composition of claim 4 which also contains an ABS polymer.
Claim 11
Dependent Claim
29 words
The polymer composition of claim 4 which also contains a styrene acrylonitile copolymer that is modified with an acrylic polymer, chlorinated polyethylene or an ethylene, propylene polyene modified polymer.
References Cited (Backward Citations)
US3882192A
Cited
US4105711A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1988-03-25 | 1988-09-24 | 1989-03-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-03-25 | 1992-09-24 | 1993-03-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-03-25 | 1996-09-24 | 1997-03-26 | $7700.00 | Window Closed / Lapsed |