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US4661565A
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Uniformly crosslinked polyesters
Assignee: Dow Chemical Co
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Filing: 1986-03-17
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Granted: 1987-04-28
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Expires: 2006-03-17
Abstract
Abstract This invention relates to a new uniformly crosslinked polymer having the formula: ##STR1## wherein R 1 is an alkylene, a cycloalkylene, an alkenylene, an alkynlene or a p-arylene and n is a whole integer greater than 1 and less than 100,000.
Inventors
- 👤 Stephen A. Noding
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 10:09
CPC Classifications
C; C08; C08G; C08G63/00; C08G63/91; C08G63/914; C08G63/916
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
36 words
A composition of matter having the formula: ##STR4## wherein R 1 is an alkylene, a cycloalkylene, an alkenylene, an alkynlene or a p-arylene and n is a whole integer greater than 1 and less than 100,000.
Claim 2
Dependent Claim
36 words
A composition of matter having the formula: ##STR4## wherein R 1 is an alkylene, a cycloalkylene, an alkenylene, an alkynlene or a p-arylene and n is a whole integer greater than 1 and less than 100,000.
Claim 3
Dependent Claim
13 words
The composition of matter of claim 1 wherein R 1 is a p-arylene.
Claim 4
Dependent Claim
13 words
The composition of matter of claim 1 wherein R 1 is an alkylene.
Claim 5
Dependent Claim
12 words
The composition of matter of claim 1 wherein R 1 is ethylene.
Claim 6
Dependent Claim
12 words
The composition of matter of claim 1 wherein R 1 is p-phenylene.
Claim 7
Dependent Claim
20 words
The composition of matter of claim 1 wherein n is within the range of from about 1000 to about 100,000.
Claim 8
Dependent Claim
20 words
The composition of matter of claim 4 wherein n is within the range of from about 1000 to about 100,000.
Claim 9
Dependent Claim
20 words
The composition of matter of claim 5 wherein n is within the range of from about 1000 to about 100,000.
References Cited (Backward Citations)
US4065440A
Cited
US4361695A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1990-04-27 | 1990-10-27 | 1991-04-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-04-27 | 1994-10-27 | 1995-04-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-04-27 | 1998-10-27 | 1999-04-28 | $7700.00 | Window Closed / Lapsed |