US4581436A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heat-curable composition
Assignee: Resolution Performance Products LLC
•
Filing: 1984-12-24
•
Granted: 1986-04-08
•
Expires: 2004-12-24
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) an unsaturated monomer and (5) a free radical curing agent.
Inventors
- 👤 Larry S. Corley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 19:11
CPC Classifications
C; C08; C08G; C08G59/00; C08G59/18; C08G59/40; C08G59/50; C08G59/56; C08F; C08F283/00; C08F283/10
Claims Analysis
Total Claims: 25
Claim 1
Independent Claim
64 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 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 (5) a curing amount of a free radical curing agent.
Claim 2
Dependent Claim
64 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 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 (5) 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
11 words
The composition of claim 1 wherein the aromatic amine is 4,4'-methylenedianiline.
Claim 10
Dependent Claim
17 words
The composition of claim 1 wherein the unsaturated monomer is an ester of an ethylenically unsaturated acid.
Claim 11
Dependent Claim
12 words
The composition of claim 9 wherein the unsaturated monomer is butyl acrylate.
Claim 12
Dependent Claim
12 words
The composition of claim 9 wherein the unsaturated monomer is isobutyl methacrylate.
Claim 13
Dependent Claim
16 words
The composition of claim 1 wherein the unsaturated monomer is a poly(meth)acrylate ester of a polyol.
Claim 14
Dependent Claim
12 words
The composition of claim 12 wherein the unsaturated monomer is trimethylolpropane trimethacrylate.
Claim 15
Dependent Claim
13 words
The composition of claim 1 wherein the free-radical curing agent is a peroxide.
Claim 16
Dependent Claim
12 words
The composition of claim 14 wherein the peroxide is an organic peroxide.
Claim 17
Dependent Claim
13 words
The composition of claim 1 wherein said unsaturated monomer is an allyl compound.
Claim 18
Dependent Claim
12 words
The composition of claim 16 wherein said allyl compound is diallyl phthalate.
Claim 19
Dependent Claim
17 words
The composition of claim 1 wherein the unsaturated monomer is an amide of an ethylenically unsaturated acid.
Claim 20
Dependent Claim
11 words
The composition of claim 18 wherein the unsaturated monomer is N,N'-dimethylacrylamide.
Claim 21
Dependent Claim
13 words
The composition of claim 1 wherein the unsaturated monomer is an N-vinyl amide.
Claim 22
Dependent Claim
11 words
The composition of claim 20 wherein the unsaturated monomer is N-vinylpyrrolidone.
Claim 23
Dependent Claim
35 words
The composition of claim 1 wherein the relative amount of polyepoxide to unsaturated monomer is about 99 to about 25 percent by weight polyepoxide and about 1 to about 75 percent by weight unsaturated monomer.
Claim 24
Dependent Claim
22 words
The composition of claim 22 wherein the amount of amine is about 0.5 to about 1.5 chemical equivalents based on the polyepoxide.
Claim 25
Dependent Claim
25 words
The composition of claim 23 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) | 1989-04-07 | 1989-10-07 | 1990-04-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-04-07 | 1993-10-07 | 1994-04-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-04-07 | 1997-10-07 | 1998-04-08 | $7700.00 | Window Closed / Lapsed |