Patent US4238587A successfully refreshed from Google Patents.
US4238587A
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Heat curable compositions
Assignee: General Electric Co
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Filing: 1979-11-28
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Granted: 1980-12-09
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Expires: 1999-11-28
Abstract
Abstract Diaryliodonium salts have been found to be effective thermal initiators for the polymerization of a variety of cationically polymerizable materials including epoxides, cyclic ethers, phenol formaldehyde resins, etc., when used in combination with various cocatalysts. Among the cocatalysts which have been found to be effective are, for example, copper chelates and mixtures of such copper chelates with various reducing agents such as ascorbic acid, tin +2 salts, etc.
Inventors
- 👤 James V. Crivello
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 11:30
CPC Classifications
C; C08; C08G; C08G85/00; C08G59/00; C08G59/18; C08G59/68; C08G59/70
Claims Analysis
Total Claims: 24
Claim 1
Independent Claim
34 words
Heat curable compositions comprising (A) a cationically polymerizable organic material, (B) a diaryliodonium salt and (C) a member selected from a copper chelate and a mixture of a copper chelate and a reducing agent.
Claim 2
Dependent Claim
34 words
Heat curable compositions comprising (A) a cationically polymerizable organic material, (B) a diaryliodonium salt and (C) a member selected from a copper chelate and a mixture of a copper chelate and a reducing agent.
Claim 3
Dependent Claim
16 words
A curable composition in accordance with claim 1, where the diaryliodonium salt is a diphenyliodonium hexafluorophosphate.
Claim 4
Dependent Claim
15 words
A curable composition in accordance with claim 1, where the diaryliodonium salt is diphenyliodonium hexafluoroarsenate.
Claim 5
Dependent Claim
15 words
A curable composition in accordance with claim 1, where the diaryliodonium salt is diphenyliodonium hexafluoroantimonate.
Claim 6
Dependent Claim
18 words
A curable composition in accordance with claim 1, where the cationically polymerizable organic polymer is an epoxy resin.
Claim 7
Dependent Claim
15 words
A curable composition in accordance with claim 1, where the copper chelate is copper acetylacetonate.
Claim 8
Dependent Claim
15 words
A curable composition in accordance with claim 1, where the copper chelate is copper salicylate.
Claim 9
Dependent Claim
14 words
A curable composition in accordance with claim 1, where the copper chelate is ##STR19##
Claim 10
Dependent Claim
15 words
A curable composition in accordance with claim 1, where the reducing agent is stannous octoate.
Claim 11
Dependent Claim
15 words
A curable composition in accordance with claim 1, where the reducing agent is ascorbic acid.
Claim 12
Dependent Claim
86 words
A heat curable composition comprising (A) an epoxy resin, (B) a diaryliodonium salt having the formula, [(R).sub.a (R.sup.1).sub.b I].sup.+ [MQ.sub.d ].sup.-, and (C) a copper chelate, where R is a C.sub.(6-13) aromatic hydrocarbon radical, R 1 is a divalent aromatic organic radical, M is a metal or metalloid, Q is a halogen radical, a is equal to 0 or 2, b is equal to 0 or 1 and the sum of a+b is equal to 1 or 2, and d is an integer equal to 4-6.
Claim 13
Dependent Claim
86 words
A heat curable composition comprising (A) an epoxy resin, (B) a diaryliodonium salt having the formula, [(R).sub.a (R.sup.1).sub.b I].sup.+ [MQ.sub.d ].sup.-, and (C) a copper chelate, where R is a C.sub.(6-13) aromatic hydrocarbon radical, R 1 is a divalent aromatic organic radical, M is a metal or metalloid, Q is a halogen radical, a is equal to 0 or 2, b is equal to 0 or 1 and the sum of a+b is equal to 1 or 2, and d is an integer equal to 4-6.
Claim 14
Dependent Claim
16 words
A curable composition in accordance with claim 11, where the copper chelate is copper acetyl acetonate.
Claim 15
Dependent Claim
14 words
A curable composition in accordance with claim 11, where the copper chelate is ##STR20##
Claim 16
Dependent Claim
15 words
A curable composition in accordance with claim 11, where the diaryliodonium salt is diphenyliodonium hexafluoroarsenate.
Claim 17
Dependent Claim
15 words
A curable composition in accordance with claim 11, where the diaryliodonium salt is diphenyliodonium hexafluorophosphate.
Claim 18
Dependent Claim
15 words
A curable composition in accordance with claim 11, where the diaryliodonium salt is diphenyliodonium hexafluoroantimonate.
Claim 19
Dependent Claim
94 words
A heat curable composition comprising (A) an epoxy resin, (B) a diaryliodonium salt having the formula, [(R).sub.a (R.sup.1).sub.b I].sup.+ [MQ.sub.d ].sup.-, and (C) a member selected from a copper chelate and a reducing agent, where R is a C.sub.(6-13) aromatic hydrocarbon radical, R 1 is a divalent aromatic organic radical M is a metal or metalloid, Q is a halogen radical, a is equal to 0 or 2, b is equal to 0 or 1 and the sum of a+b is equal to 1 or 2, and d is an integer equal to 4-6.
Claim 20
Dependent Claim
94 words
A heat curable composition comprising (A) an epoxy resin, (B) a diaryliodonium salt having the formula, [(R).sub.a (R.sup.1).sub.b I].sup.+ [MQ.sub.d ].sup.-, and (C) a member selected from a copper chelate and a reducing agent, where R is a C.sub.(6-13) aromatic hydrocarbon radical, R 1 is a divalent aromatic organic radical M is a metal or metalloid, Q is a halogen radical, a is equal to 0 or 2, b is equal to 0 or 1 and the sum of a+b is equal to 1 or 2, and d is an integer equal to 4-6.
Claim 21
Dependent Claim
16 words
A heat curable composition in accordance with claim 17, where the reducing agent is stannous octoate.
Claim 22
Dependent Claim
15 words
A heat curable composition in accordance with claim 17, where the reducing agent is fructose.
Claim 23
Dependent Claim
16 words
A heat curable composition in accordance with claim 17, where the reducing agent is ascorbic acid.
Claim 24
Dependent Claim
15 words
A heat curable composition in accordance with claim 17, where the reducing agent is benzoin.
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) | 1983-12-09 | 1984-06-09 | 1984-12-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-12-09 | 1988-06-09 | 1988-12-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-12-09 | 1992-06-09 | 1992-12-09 | $7700.00 | Window Closed / Lapsed |