Patent US4137279A successfully refreshed from Google Patents.
US4137279A
Expired / Lapsed
US
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Copolymers of polycaprolactone derivatives and ethylenically unsaturated monomers
Assignee: Union Carbide Corp
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Filing: 1977-12-27
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Granted: 1979-01-30
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Expires: 1997-12-27
Abstract
Abstract Mixtures of the unsaturated maleic anhydride modified adduct of a polycaprolactone polyol and an ethylenically unsaturated monomer are copolymerized. The resulting polymers are useful as coatings or in the production of films and shaped molded articles.
Inventors
- 👤 Oliver W. Smith
- 👤 Joseph V. Koleske
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 04:05
CPC Classifications
C; C08; C08G; C08G63/00; C08G63/02; C08G63/06; C09; C09D; C09D167/00; C09D167/06
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
93 words
A polymer comprising (A) from 10 to 97 weight percent of the reaction product mixture of a polycaprolactone polyol and maleic anhydride and (B) from 3 to 90 weight percent of an ethylenically unsaturated monomer polymerized with (A); wherein said reaction product mixture (A) is the adduct of a polycaprolactone polyol having at least two hydroxyl groups in the molecule, a hydroxyl number of from 4 to 600 and an average molecular weight of from 290 to 25,000 with from 0.1 to 1 anhydride equivalent per hydroxyl equivalent in said polyol initially charged.
Claim 2
Dependent Claim
93 words
A polymer comprising (A) from 10 to 97 weight percent of the reaction product mixture of a polycaprolactone polyol and maleic anhydride and (B) from 3 to 90 weight percent of an ethylenically unsaturated monomer polymerized with (A); wherein said reaction product mixture (A) is the adduct of a polycaprolactone polyol having at least two hydroxyl groups in the molecule, a hydroxyl number of from 4 to 600 and an average molecular weight of from 290 to 25,000 with from 0.1 to 1 anhydride equivalent per hydroxyl equivalent in said polyol initially charged.
Claim 3
Dependent Claim
43 words
A polymer as claimed in claim 1, comprising (A) from 15 to 90 weight percent of the reaction product mixture of a polycaprolactone polyol and maleic anhydride and (B) from 10 to 85 weight percent of an ethylenically unsaturated monomer polymerized with (A).
Claim 4
Dependent Claim
29 words
A polymer as claimed in claim 1, wherein said component (A) is the reaction product of a polycaprolactone polyol having from 2 to 6 hydroxyl groups and maleic anhydride.
Claim 5
Dependent Claim
29 words
A polymer as claimed in claim 1, wherein said component (A) is the reaction product of a polycaprolactone polyol having from 2 to 4 hydroxyl groups and maleic anhydride.
Claim 6
Dependent Claim
41 words
A polymer as claimed in claim 1, wherein said component (A) is the adduct of a polycaprolactone diol having an average molecular weight of 530 and an average hydroxyl number of 212 with maleic anhydride and said component (B) is styrene.
Claim 7
Dependent Claim
34 words
A polymer as claimed in claim 1, wherein said component (A) is the adduct of a polycaprolactone triol having an average hydroxyl number of 310 with maleic anhydride and said component (B) is styrene.
Claim 8
Dependent Claim
41 words
A polymer as claimed in claim 1, wherein said component (A) is the adduct of a polycaprolactone triol having an average molecular weight of 300 and an average hydroxyl number of 560 with maleic anhydride and said component (B) is styrene.
Claim 9
Dependent Claim
41 words
A polymer as claimed in claim 1, wherein said component (A) is the adduct of a polycaprolactone triol having an average molecular weight of 900 and an average hydroxyl number of 187 with maleic anhydride and said component (B) is styrene.
Claim 10
Dependent Claim
35 words
A polymer as claimed in claim 1, wherein said component (A) is the adduct of a polycaprolactone homopolymer having an average molecular weight of about 5,000 with maleic anhydride and said component (B) is styrene.
Claim 11
Dependent Claim
35 words
A polymer as claimed in claim 1, wherein said component (A) is the adduct of a polycaprolactone homopolymer having an average molecular weight of about 10,000 with maleic anhydride and said component (B) is styrene.
Claim 12
Dependent Claim
35 words
A polymer as claimed in claim 1, wherein said component (A) is the adduct of a polycaprolactone homopolymer having an average molecular weight of about 20,000 with maleic anhydride and said component (B) is styrene.
Claim 13
Dependent Claim
41 words
A polymer as claimed in claim 1, wherein said component (A) is the adduct of a polycaprolactone diol having an average molecular weight of 2,000 and an average hydroxyl number of 56 with maleic anhydride and said component (B) is styrene.
Claim 14
Dependent Claim
27 words
A polymer as claimed in claim 1, additionally containing from 25 to 200 weight percent of a crosslinking agent based on the weight of said adduct present.
Claim 15
Dependent Claim
13 words
A polymer as claimed in claim 13, wherein said crosslinker is a melamine.
Claim 16
Dependent Claim
12 words
A polymer as claimed in claim 14, wherein said crosslinker is hexamethoxymethylmelamine.
Claim 17
Dependent Claim
13 words
A polymer as claimed in claim 13, wherein said crosslinker is a 1,2-epoxide.
Claim 18
Dependent Claim
13 words
A polymer as claimed in claim 16, wherein said crosslinker is 3,4-epoxycyclohexylmethyl 3,4-epoxycyclohexanoate.
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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) | 1982-01-29 | 1982-07-31 | 1983-01-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-01-29 | 1986-07-31 | 1987-01-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-01-29 | 1990-07-31 | 1991-01-30 | $7700.00 | Window Closed / Lapsed |