US4225691A
Expired / Lapsed
US
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Low temperature curable organic resin compositions
Assignee: General Electric Co
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Filing: 1979-07-17
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Granted: 1980-09-30
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Expires: 1999-07-17
Abstract
Abstract Low temperature curable organic resin compositions, for example, epoxy resins are provided, which can be either exothermically cured or cured in several minutes or less at relatively low temperatures. Certain diaryliodonium salts have been found to spontaneously release strong protonic acids when used in combination with a copper salt and a reducing agent.
Inventors
- 👤 James V. Crivello
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 18:36
CPC Classifications
C; C08; C08G; C08G59/00; C08G59/18; C08G59/68; C08G85/00
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
79 words
A curable composition comprising by weight, (A) a cationically polymerizable organic resin, and (B) an effective amount of a curable composition of a catalyst consisting essentially of (i) a diaryl iodonium salt (ii) 0.1 to 10 parts, per part of (i) of a copper salt and (iii) 0.5 part to 10 parts, per part of (i) of an organic or inorganic compound or polymer capable of lowering or reducing the change of the hetero atom of the diaryliodonium salt.
Claim 2
Dependent Claim
79 words
A curable composition comprising by weight, (A) a cationically polymerizable organic resin, and (B) an effective amount of a curable composition of a catalyst consisting essentially of (i) a diaryl iodonium salt (ii) 0.1 to 10 parts, per part of (i) of a copper salt and (iii) 0.5 part to 10 parts, per part of (i) of an organic or inorganic compound or polymer capable of lowering or reducing the change of the hetero atom of the diaryliodonium salt.
Claim 3
Dependent Claim
18 words
A curable composition in accordance with claim 1, where the cationically polymerizable organic resin is a phenolformaldehyde resin.
Claim 4
Dependent Claim
15 words
A curable composition in accordance with claim 1, where the copper salt is copper benzoate.
Claim 5
Dependent Claim
17 words
A curable composition in accordance with claim 1, where the reducing agent is an Sn +2 salt.
Claim 6
Dependent Claim
15 words
A curable composition in accordance with claim 1, where the reducing agent is stannous octoate.
Claim 7
Dependent Claim
17 words
A curable composition in accordance with claim 1, where the reducing agent is an α-hydroxy carbonyl compound.
Claim 8
Dependent Claim
14 words
A curable composition in accordance with claim 1, where the reducing agent is benzoin.
Claim 9
Dependent Claim
131 words
A curable composition comprising by weight (C) a cationically polymerizable organic resin, (D) an effective amount of the curable composition of a mixture of (iv) a diaryliodonium salt of the formula, [(R).sub.a (R.sup.1).sub.b I][MQ.sub.d ].sup.-, (v) 0.1 part to 10 parts, per part of (iv) of a copper salt and (vi) 0.5 part to 10 parts, per part of (iv), of a reducing agent, where R is a monovalent aromatic organic radical, R 1 is a divalent aromatic organic radical, M is a metal or metalloid, Q is a halogen radical, a is a whole number equal to 0 or 2, b is a whole number equal to 0 or 1, and when a is 0, b is equal to 1, and when b is 0, a is equal to 2.
Claim 10
Dependent Claim
131 words
A curable composition comprising by weight (C) a cationically polymerizable organic resin, (D) an effective amount of the curable composition of a mixture of (iv) a diaryliodonium salt of the formula, [(R).sub.a (R.sup.1).sub.b I][MQ.sub.d ].sup.-, (v) 0.1 part to 10 parts, per part of (iv) of a copper salt and (vi) 0.5 part to 10 parts, per part of (iv), of a reducing agent, where R is a monovalent aromatic organic radical, R 1 is a divalent aromatic organic radical, M is a metal or metalloid, Q is a halogen radical, a is a whole number equal to 0 or 2, b is a whole number equal to 0 or 1, and when a is 0, b is equal to 1, and when b is 0, a is equal to 2.
Claim 11
Dependent Claim
18 words
A curable composition in accordance with claim 8, where the cationically polymerizable organic resin is an epoxy resin.
Claim 12
Dependent Claim
15 words
A curable composition in accordance with claim 8, where the copper salt is copper benzoate.
Claim 13
Dependent Claim
15 words
A curable composition in accordance with claim 8, where the diaryliodonium salt is diphenyliodonium hexafluoroarsenate.
Claim 14
Dependent Claim
17 words
A composition in accordance with claim 8 having up to 60% by weight of hydroxy terminated polyester.
Claim 15
Dependent Claim
19 words
A curable composition in accordance with claim 8, where the cationically polymerizable organic material is a vinyl organic prepolymer.
References Cited (Backward Citations)
US3691133A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1983-09-30 | 1984-03-31 | 1984-09-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-09-30 | 1988-03-31 | 1988-09-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-09-30 | 1992-03-31 | 1992-09-30 | $7700.00 | Window Closed / Lapsed |