US4588788A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reactive diluents for polyepoxides
Assignee: Rohm and Haas Co
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Filing: 1985-04-26
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Granted: 1986-05-13
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Expires: 2005-04-26
Abstract
Abstract Curable compositions are prepared from a blend of a polyepoxide, the esterification product of a mixture of carboxylic acids of the formula CH 2 ═CHCO 2 (CH 2 CH 2 CO 2 ) n H (AOnPA herein), where the number average value of n is greater than about 0.1, and a mono- or polyhydric hydroxy-functional compound, and an aliphatic amine curing agent. Use of the esterification product as a reactive diluent for the polyepoxide gives coating and adhesive compositions with reduced toxicity.
Inventors
- 👤 William D. Emmons
- 👤 Charles E. Warburton, Jr.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 20:50
CPC Classifications
C; C08; C08F; C08F283/00; C08F283/10; C08G; C08G59/00; C08G59/18; C08G59/40; C08G59/50; C08G59/56; C08G59/58
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
151 words
A curable coating or adhesive composition comprising (1) a blend of at least one polyepoxide and the esterification product of a mixture of ethylenically unsaturated carboxylic acids of the formula CH 2 ═CHCO 2 (CH 2 CH 2 CO 2 ) n H, where the number average value of n is greater than about 0.1, and at least one hydroxy-functional compound selected from mono- and polyhydric compounds, the ratio of acid to alcohol ranging from 10:1 to 1:10, on an equivalent basis, wherein the ratio of said esterification product to said polyepoxide is from about 5:100 to 1:1 by weight, and (2) an aliphatic amine curing agent containing at least three amine hydrogens per molecule, wherein the amount of said curing agent is such that there are about 0.75 to 1.25 amine hydrogen atoms for each epoxy group of said polyepoxide and for each unsaturated acryl group of said esterification product.
Claim 2
Dependent Claim
151 words
A curable coating or adhesive composition comprising (1) a blend of at least one polyepoxide and the esterification product of a mixture of ethylenically unsaturated carboxylic acids of the formula CH 2 ═CHCO 2 (CH 2 CH 2 CO 2 ) n H, where the number average value of n is greater than about 0.1, and at least one hydroxy-functional compound selected from mono- and polyhydric compounds, the ratio of acid to alcohol ranging from 10:1 to 1:10, on an equivalent basis, wherein the ratio of said esterification product to said polyepoxide is from about 5:100 to 1:1 by weight, and (2) an aliphatic amine curing agent containing at least three amine hydrogens per molecule, wherein the amount of said curing agent is such that there are about 0.75 to 1.25 amine hydrogen atoms for each epoxy group of said polyepoxide and for each unsaturated acryl group of said esterification product.
Claim 3
Dependent Claim
18 words
A composition according to claim 1 wherein said polyepoxide is selected from the glycidyl polyethers of polyhydric phenols.
Claim 4
Dependent Claim
18 words
A composition according to claim 2 wherein said polyepoxide is selected from the glycidyl polyethers of bisphenol A.
Claim 5
Dependent Claim
19 words
A composition according to claim 1 wherein said hydroxy-functional compound is selected from (C 1 -C 8 ) alkanols.
Claim 6
Dependent Claim
12 words
A composition according to claim 4 wherein said hydroxy-functional compound is n-butanol.
Claim 7
Dependent Claim
13 words
A composition according to claim 4 wherein said hydroxy-functional compound is tetrahydrofurfuryl alcohol.
Claim 8
Dependent Claim
18 words
A composition according to claim 1 wherein said hydroxy-functional compound is selected from the hydroxy-functional acrylates and methacrylates.
Claim 9
Dependent Claim
20 words
A composition according to claim 7 wherein said hydroxy-functional compound is selected from 2-hydroxyethyl acrylate, 2-hydroxyethyl methacrylate, and 3-hydroxypropyl acrylate.
Claim 10
Dependent Claim
13 words
A composition according to claim 8 wherein said hydroxy-functional compound is 2-hydroxyethyl acrylate.
Claim 11
Dependent Claim
13 words
A composition according to claim 1 wherein said curing agent is triethylene tetramine.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-05-12 | 1989-11-11 | 1990-05-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-05-12 | 1993-11-11 | 1994-05-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-05-12 | 1997-11-11 | 1998-05-13 | $7700.00 | Window Closed / Lapsed |