Patent US4358563A successfully refreshed from Google Patents.
US4358563A
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Polycarbonate composition
Assignee: General Electric Co
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Filing: 1981-02-17
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Granted: 1982-11-09
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Expires: 2001-02-17
Abstract
Abstract This invention is directed to an impact modified polycarbonate composition comprising in admixture a high molecular weight aromatic carbonate polymer terminated with a novel endcapper and a minor amount of a polyolefin.
Inventors
- 👤 Clayton B. Quinn
- 👤 William Hilakos
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 20:34
CPC Classifications
C; C08; C08G; C08G64/00; C08G64/04; C08G64/06; C08G64/14; C08L; C08L69/00
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
114 words
A composition comprising a. a high molecular weight polymer having as a repeating unit an aromatic carbonate ##STR2## said polymer endcapped with XR wherein X is derived from an organic moiety having a single substituent reactive with the acidic hydrogen of a phenol or the chlorine of phosgene and R is selected from the group consisting of the hydrocarbyl portion of the following acids or acid chlorides; stearic, isostearic, palmitic, myristic, lauric, pelagronic, caproic, caprylic, oleic, linoleic and abietic in admixture with b. about one to about ten parts of a polyolefin selected from the group consisting of polyethylene or polypropylene, said parts per 100 parts by weight of the polymer of section a.
Claim 2
Dependent Claim
114 words
A composition comprising a. a high molecular weight polymer having as a repeating unit an aromatic carbonate ##STR2## said polymer endcapped with XR wherein X is derived from an organic moiety having a single substituent reactive with the acidic hydrogen of a phenol or the chlorine of phosgene and R is selected from the group consisting of the hydrocarbyl portion of the following acids or acid chlorides; stearic, isostearic, palmitic, myristic, lauric, pelagronic, caproic, caprylic, oleic, linoleic and abietic in admixture with b. about one to about ten parts of a polyolefin selected from the group consisting of polyethylene or polypropylene, said parts per 100 parts by weight of the polymer of section a.
Claim 3
Dependent Claim
19 words
A composition in accordance with claim 1 wherein X is derived from a carboxylic acid or carboxylic acid halide.
Claim 4
Dependent Claim
23 words
A composition in accordance with claim 2 wherein XR is derived from stearic acid, stearic acid chloride, lineolic acid or linoleic acid chloride.
Claim 5
Dependent Claim
18 words
A composition in accordance with claim 2 wherein the polyolefin is from about four to about six parts.
Claim 6
Dependent Claim
18 words
A composition in accordance with claim 3 wherein the polyolefin is from about four to about six parts.
Claim 7
Dependent Claim
16 words
A composition in accordance with claims 2 or 5 wherein Ar is derived from bisphenol A.
References Cited (Backward Citations)
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Cited
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Cited
US3290409A
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US3477978A
Cited
US3801673A
Cited
US4097457A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1985-11-08 | 1986-05-10 | 1986-11-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-11-08 | 1990-05-10 | 1990-11-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-11-08 | 1994-05-10 | 1994-11-09 | $7700.00 | Window Closed / Lapsed |