US4579931A
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Heat-curable composition
Assignee: Resolution Performance Products LLC
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Filing: 1985-01-28
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Granted: 1986-04-01
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Expires: 2005-01-28
Abstract
Abstract Heat-curable compositions exhibiting improved room temperature pot life and reduced viscosity are obtained from composition comprising (1) a polyepoxide, (2) an aromatic or aliphatic amine, (3) a trihydrocarbyl sulfonium salt, (4) at least one unsaturated aromatic monomer, (5) an unsaturated co-monomer and (6) a free radical curing agent.
Inventors
- 👤 Larry S. Corley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 20:58
CPC Classifications
C; C08; C08G; C08G59/00; C08G59/18; C08G59/40; C08G59/50; C08F; C08F283/00; C08F283/10; C08G59/56
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
91 words
A curable composition comprising (1) a polyepoxide, (2) at least one aromatic or aliphatic amine, (3) a catalytic amount of a trihydrocarbyl sulfonium salt, (4) at least one unsaturated aromatic monomer selected from the group consisting of styrene, alpha-methylstyrene, vinyl toluene, chlorostyrene, bromo styrene, nitrostyrene, divinylbenzene, tertiary-butylstyrene, and vinyl naphthalene, and (5) at least one unsaturated monomer selected from the group consisting of alkyl esters or amides of ethylenically unsaturated monocarboxylic acids, cyano-containing compounds, vinyl esters, N-vinylamides and allyl compounds and (6) a curing amount of a free radical curing agent.
Claim 2
Dependent Claim
91 words
A curable composition comprising (1) a polyepoxide, (2) at least one aromatic or aliphatic amine, (3) a catalytic amount of a trihydrocarbyl sulfonium salt, (4) at least one unsaturated aromatic monomer selected from the group consisting of styrene, alpha-methylstyrene, vinyl toluene, chlorostyrene, bromo styrene, nitrostyrene, divinylbenzene, tertiary-butylstyrene, and vinyl naphthalene, and (5) at least one unsaturated monomer selected from the group consisting of alkyl esters or amides of ethylenically unsaturated monocarboxylic acids, cyano-containing compounds, vinyl esters, N-vinylamides and allyl compounds and (6) a curing amount of a free radical curing agent.
Claim 3
Dependent Claim
16 words
The composition of claim 1 wherein the polyepoxide is a glycidyl polyether of a polyhydric phenol.
Claim 4
Dependent Claim
11 words
The composition of claim 2 wherein the polyhydric phenol is 2,2-bis(4-hydroxyphenyl)propane.
Claim 5
Dependent Claim
15 words
The composition of claim 1 wherein the trihydrocarbyl sulfonium salt is a trialkyl sulfonium salt.
Claim 6
Dependent Claim
26 words
The composition of claim 4 wherein the trialkyl sulfonium salt is used in an amount from about 0.001% to about 10% by weight of the polyepoxide.
Claim 7
Dependent Claim
22 words
The composition of claim 1 wherein the trihydrocarbyl sulfonium salt is a mixture prepared by the condensation of 2,2'-thiodiethanol with tetrafluoroboric acid.
Claim 8
Dependent Claim
13 words
The composition of claim 1 wherein the trihydrocarbyl sulfonium salt is ethyl(2-hydroxyethyl)(2-(ethylthio)ethyl)sulfonium tetrafluoroborate.
Claim 9
Dependent Claim
13 words
The composition of claim 1 wherein the trihydrocarbyl sulfonium salt is allyldimethylsulfonium tetrafluoroborate.
Claim 10
Dependent Claim
11 words
The composition of claim 1 wherein the aromatic amine is 4,4'-methylenedianiline.
Claim 11
Dependent Claim
17 words
The composition of claim 1 wherein the unsaturated co-monomer is an ester of an ethylenically unsaturated acid.
Claim 12
Dependent Claim
16 words
The composition of claim 1 wherein the unsaturated co-monomer is a poly(meth)acrylate ester of a polyol.
Claim 13
Dependent Claim
12 words
The composition of claim 11 wherein the unsaturated co-monomer is trimethylolpropane trimethacrylate.
Claim 14
Dependent Claim
13 words
The composition of claim 1 wherein the free-radical curing agent is a peroxide.
Claim 15
Dependent Claim
12 words
The composition of claim 13 wherein the peroxide is an organic peroxide.
Claim 16
Dependent Claim
12 words
The composition of claim 1 wherein the unsaturated aromatic monomer is styrene.
Claim 17
Dependent Claim
17 words
The composition of claim 1 wherein the unsaturated aromatic monomer is a mixture of styrene and divinylbenzene.
Claim 18
Dependent Claim
43 words
The composition of claim 1 wherein the relative amounts of components are: (a) about 98 to about 24 weight percent polyepoxide; (b) about 1 to about 75 weight percent unsaturated aromatic monomer; and (c) about 1 to about 75 weight percent unsaturated co-monomer.
Claim 19
Dependent Claim
22 words
The composition of claim 17 wherein the amount of amine is about 0.5 to about 1.5 chemical equivalents based on the polyepoxide.
Claim 20
Dependent Claim
25 words
The composition of claim 17 wherein the amount of trihydrocarbyl sulfonium salt is about 0.01 to about 10 percent by weight based on the polyepoxide.
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) | 1989-03-31 | 1989-09-30 | 1990-04-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-03-31 | 1993-09-30 | 1994-04-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-03-31 | 1997-09-30 | 1998-04-01 | $7700.00 | Window Closed / Lapsed |