Patent US859629A successfully refreshed from Google Patents.
Patent USH732H successfully refreshed from Google Patents.
USH732H
Expired / Lapsed
US
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Polymer blend
Assignee: Shell USA Inc
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Filing: 1988-06-20
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Granted: 1990-02-06
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Expires: 2008-06-20
Abstract
Abstract Non-miscible blends comprising, as a major component, a linear alternating polymer of carbon monoxide and at least one ethylenically unsaturated hydrocarbon and, as a minor component, an oligomer derived from an epihalohydrin and a hydroxyphenylalkane, demonstrate improved processability.
Inventors
- 👤 Robert G. Lutz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 13:47
CPC Classifications
C; C08; C08L; C08L63/00; C08F; C08F283/00; C08F283/10; C08L73/00
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
38 words
A composition comprising a non-miscible blend of, as a major component, a linear alternating polymer of carbon monoxide and at least one ethylenically unsaturated hydrocarbon and, as a minor component as oligomer derived from spihalohydrin and a hydroxyphenylalkane.
Claim 2
Dependent Claim
38 words
A composition comprising a non-miscible blend of, as a major component, a linear alternating polymer of carbon monoxide and at least one ethylenically unsaturated hydrocarbon and, as a minor component as oligomer derived from spihalohydrin and a hydroxyphenylalkane.
Claim 3
Dependent Claim
24 words
The composition of claim 1 wherein the oligomer is an alternating oligomer of bis(oxyphenyl)alkane moieties and 2-hydroxypropane moieties and is capped with glycidyl groups.
Claim 4
Dependent Claim
51 words
The composition of claim 2 wherein the oligomer is represented by the formula ##STR4## wherein R' is alkylidine of up to 8 carbon atoms inclusive, R is lower alkyl or middle halogen, r is an integer from 0 to 4 inclusive and n is a number from 0 to about 40.
Claim 5
Dependent Claim
14 words
The composition of claim 3 wherein the oligomer is represented by the formula ##STR5##
Claim 6
Dependent Claim
15 words
The composition of claim 1 wherein the oligomer is a polyglycidyl ether of a poly(hydroxyphenylalkane).
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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) | 1993-02-05 | 1993-08-07 | 1994-02-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-02-05 | 1997-08-07 | 1998-02-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-02-05 | 2001-08-07 | 2002-02-06 | $7700.00 | Window Closed / Lapsed |