US4239725A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Low temperature curable organic resin compositions
Assignee: General Electric Co
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Filing: 1980-02-19
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Granted: 1980-12-16
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Expires: 2000-02-19
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
2026-11-04 02:52
CPC Classifications
G; G03; G03F; G03F7/00; G03F7/004; G03F7/027; G03F7/028; G03F7/029; C; C08; C08F; C08F4/00; C08G; C08G59/00; C08G59/18; C08G59/68; C08G85/00; Y; Y10; Y10S; Y10S264/00; Y10S264/83
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
94 words
A method for molding a shaped part from a cationically polymerizable organic material which comprises (1) blending under reaction injection molding conditions a mixture comprising (E) a cationically polymerizable organic material, and (F) an effective amount of a catalyst comprising (vii) a diaryl iodonium salt, (viii) 0.1 to 10 parts, per part of (vii) of a copper salt and (ix) 0.5 part to 10 parts, per part of (iv) of a reducing agent, (2) injecting the resulting mixture of (1) into a heated mold and (3) recovering the molded part resulting from step (2).
Claim 2
Independent Claim
94 words
A method for molding a shaped part from a cationically polymerizable organic material which comprises (1) blending under reaction injection molding conditions a mixture comprising (E) a cationically polymerizable organic material, and (F) an effective amount of a catalyst comprising (vii) a diaryl iodonium salt, (viii) 0.1 to 10 parts, per part of (vii) of a copper salt and (ix) 0.5 part to 10 parts, per part of (iv) of a reducing agent, (2) injecting the resulting mixture of (1) into a heated mold and (3) recovering the molded part resulting from step (2).
Claim 3
Dependent Claim
17 words
A method in accordance with claim 1, where the cationically polymerizable organic resin is an epoxy resin.
Claim 4
Dependent Claim
25 words
A method in accordance with claim 1, where the cationically polymerizable organic resin is a mixture of an epoxy resin and a hydroxy terminated polyester.
Claim 5
Dependent Claim
14 words
A method in accordance with claim 1, where the copper salt is copper napthenate.
Claim 6
Dependent Claim
14 words
A method in accordance with claim 1, where the diaryliodonium salt is diphenyliodonium hexafluoroarsenate.
Claim 7
Dependent Claim
13 words
A method in accordance with claim 1, where the reducing agent is fructose.
Claim 8
Dependent Claim
14 words
A method in accordance with claim 1, where the reducing agent is stannous octoate.
Claim 9
Dependent Claim
14 words
A method in accordance with claim 1, where the diaryliodonium salt is diphenyliodonium hexafluorophosphate.
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) | 1983-12-16 | 1984-06-16 | 1984-12-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-12-16 | 1988-06-16 | 1988-12-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-12-16 | 1992-06-16 | 1992-12-16 | $7700.00 | Window Closed / Lapsed |