US4479860A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Photo-curable epoxy resin composition
Assignee: Toshiba Corp
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Filing: 1983-09-12
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Granted: 1984-10-30
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Expires: 2003-09-12
Abstract
Abstract There is disclosed a photo-curable epoxy resin composition comprising an epoxy resin and a combination of an aluminum compound and a silicon compound having a peroxysilyl group as a hardening catalyst. The compositions of the present invention can suitably be used for wide varieties of electrical applications.
Inventors
- 👤 Shuzi Hayase
- 👤 Yasunobu Onishi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 22:04
CPC Classifications
G; G03; G03F; G03F7/00; G03F7/004; G03F7/075; G03F7/0755; C; C08; C08G; C08G59/00; C08G59/18; C08G59/68; C08G59/70
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
29 words
A photo-curable epoxy resin composition which comprises an epoxy resin and a combination of an aluminum compound and a silicon compound having a peroxysilyl group as a hardening catalyst.
Claim 2
Dependent Claim
29 words
A photo-curable epoxy resin composition which comprises an epoxy resin and a combination of an aluminum compound and a silicon compound having a peroxysilyl group as a hardening catalyst.
Claim 3
Dependent Claim
18 words
A photo-curable epoxy resin composition according to claim 1, wherein said aluminum compound is an organic aluminum compound.
Claim 4
Dependent Claim
38 words
A photo-curable epoxy resin composition according to claim 2, wherein said organic aluminum compound is selected from the group consisting of an alkoxy aluminum compound, an aryloxy aluminum compound, an acyloxy aluminum compound and an aluminum chelate compound.
Claim 5
Dependent Claim
29 words
A photo-curable epoxy resin composition according to claim 1, wherein said aluminum compounds is used in an amount of 0.001 to 10% by weight based on the epoxy resin.
Claim 6
Dependent Claim
29 words
A photo-curable epoxy resin composition according to claim 4, wherein said aluminum compounds is used in an amount of 0.1 to 5% by weight based on the epoxy resin.
Claim 7
Dependent Claim
85 words
A photo-curable epoxy resin composition according to claim 1, wherein said silicon compound having a peroxysilyl group has the following general formula: (R.sup.1).sub.n --Si--(O--O--R.sup.2).sub.4-n in which R 1 represents a hydrogen atom, an alkyl group having from 1 to 5 carbon atoms, an alkoxy group having from 1 to 5 carbon atoms or an aryl group; R 2 represents a hydrogen atom, an alkyl group having from 1 to 10 carbon atoms or an aralkyl group; and n represents an integer from 0 to 3.
Claim 8
Dependent Claim
33 words
A photo-curable epoxy resin composition according to claim 1, wherein said silicon compound having a peroxysilyl group is used in an amount of 0.1 to 20% by weight based on the epoxy resin.
Claim 9
Dependent Claim
33 words
A photo-curable epoxy resin composition according to claim 7, wherein said silicon compound having a peroxysilyl group is used in an amount of 1 to 10% by weight based on the epoxy resin.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1987-10-30 | 1988-04-30 | 1988-10-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-10-30 | 1992-04-30 | 1992-10-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-10-30 | 1996-04-30 | 1996-10-30 | $7700.00 | Window Closed / Lapsed |