EP0091131A2
Expired / Lapsed
EP
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Photo-curable epoxy resin composition
Assignee: Toshiba Corp
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Filing: 1983-04-07
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Granted: —
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Expires: 2003-04-07
Abstract
Abstract There is disclosed a photo-curable epoxy resin composition comprising an epoxy resin and a combination of an organic aluminum compound and a silicon compound having an o-nitrobenzyloxy group as a catalyst.The compositions of the present invention are suitable for electrical uses in electrical application.
Inventors
- 👤 Shuzi Hayase
- 👤 Yasunobu Onishi
- 👤 Shuichi Suzuki
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-04 06:29
CPC Classifications
C; C08; C08G; C08G59/00; C08G59/18; C08G59/68; G; G03; G03F; G03F7/00; G03F7/004; G03F7/075; G03F7/0755
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
29 words
A photo-curable epoxy resin composition which comprises an epoxy resin and a combination of an organic aluminum compound and a silicon compound having an o-nitrobenzyloxy group as a catalyst.
Claim 2
Dependent Claim
29 words
A photo-curable epoxy resin composition which comprises an epoxy resin and a combination of an organic aluminum compound and a silicon compound having an o-nitrobenzyloxy group as a catalyst.
Claim 3
Dependent Claim
38 words
A photo-curable epoxy resin composition according to Claim 1, wherein said organic alunium 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 4
Dependent Claim
31 words
A photo-curable epoxy resin composition according to Claim 1, wherein said organic aluminum coumpounds is used in an amount of 0.001 to 10 % by weight based on the epoxy resin.
Claim 5
Dependent Claim
31 words
A photo-curable epoxy resin composition according to Claim 3, wherein said organic aluminum compounds is used in an amount of 0.1 to 5 % by weight based on the epoxy resin.
Claim 6
Dependent Claim
166 words
A photo-curable epoxy resin composition according to Claim 1, wherein said silicon compound having an o-nitrobenzyloxy group has the following general formula: in which R 1 represents a hydrogen atom, a halogen atom, an alkyl group having from 1 to 5 carbon atoms or aryl group having from 1 to 5 carbon atoms; R 2 represents a halogen atom, an alkyl group having from 1 to 5 carbon atoms or an alkoxy group having from 1 to 5 carbon atoms; m represents an integer from 0 to 4; n represents an integer from 0 to 3; plural number of the o-nitrobenzyloxy groups may be the same or different from each other; plural number of R 1 's may be the same or different from each other; and plural number of R 2 's may be the same or different from each other; provided that the case where m is an integer of 3 or less, the above-mentioned benzene ring of o-nitrobenzyloxy group is bonded hydrogen atoms.
Claim 7
Dependent Claim
33 words
A photo-curable epoxy resin composition.according to Claim 1, wherein said silicon compound having an o-nitrobenzyloxy group is used in an amount of 0.1 to 20 % by weight based on the epoxy resin.
Claim 8
Dependent Claim
34 words
A photo-curable epoxy resin composition according to Claim 1, wherein said silicon compound having an o-nitrobenzyloxy group is used in an amount of 1 to 10 % by weight based on the epoxy resin.
References Cited (Backward Citations)
No citation records indexed.
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