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US4476290A
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Photocurable silicon compound composition
Assignee: Toshiba Corp
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Filing: 1983-09-16
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Granted: 1984-10-09
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Expires: 2003-09-16
Abstract
Abstract Disclosed is a photocurable silicon compound composition which comprises a silicon compound having a silicon atom to which directly bonded is an o-nitrobenzyloxy group represented by the following formula: ##STR1## wherein R 1 , R 2 , R 3 and R 4 may be same or different and each represents a hydrogen atom, a halogen atom, a nitro group, a cyano group, a substituted or unsubstituted alkyl group having 1 to 5 carbon atoms, an alkoxy group having 1 to 5 carbon atoms, a substituted or unsubstituted aryl group, an aryloxy group, an acyloxy group having 1 to 5 carbon atoms, a hydroxy group, a mercapto group, an acetyl group or an allyl group, and optionally a silanol-condensing catalyst.
Inventors
- 👤 Shuzi Hayase
- 👤 Yasunobu Onishi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 16:36
CPC Classifications
G; G03; G03F; G03F7/00; G03F7/004; G03F7/075; G03F7/0755; C; C08; C08G; C08G77/00; C08G77/04; C08G77/22; C08G77/38; C08G77/382; C08L; C08L83/00; C08L83/04; C08L83/08; G03F7/0757; Y; Y10; Y10S; Y10S522/00; Y10S522/904
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
117 words
A photocurable silicon compound composition which comprises a silicon compound having a silicon atom to which directly bonded is an o-nitrobenzyloxy group represented by the following formula: ##STR4## wherein R 1 , R 2 , R 3 and R 4 may be same or different and each represent a hydrogen atom, a halogen atom, a nitro group, a cyano group, a substituted or unsubstituted alkyl group having 1 to 5 carbon atoms, an alkoxy group having 1 to 5 carbon atoms, a substituted or unsubstituted aryl group, an aryloxy group, an acyloxy group having 1 to 5 carbon atoms, a hydroxy group, a mercapto group, an acetyl group or an allyl group, and optionally a silanol-condensing catalyst.
Claim 2
Dependent Claim
117 words
A photocurable silicon compound composition which comprises a silicon compound having a silicon atom to which directly bonded is an o-nitrobenzyloxy group represented by the following formula: ##STR4## wherein R 1 , R 2 , R 3 and R 4 may be same or different and each represent a hydrogen atom, a halogen atom, a nitro group, a cyano group, a substituted or unsubstituted alkyl group having 1 to 5 carbon atoms, an alkoxy group having 1 to 5 carbon atoms, a substituted or unsubstituted aryl group, an aryloxy group, an acyloxy group having 1 to 5 carbon atoms, a hydroxy group, a mercapto group, an acetyl group or an allyl group, and optionally a silanol-condensing catalyst.
Claim 3
Dependent Claim
33 words
The photocurable silicon compound composition according to claim 1, wherein R 1 to R 4 each represent a hydrogen atom, a halogen atom or an alkyl group having 1 to 5 carbon atoms.
Claim 4
Dependent Claim
40 words
The photocurable silicon compound composition according to claim 2, wherein R 1 , R 2 ,and R 4 each represent a hydrogen atom and R 3 represents a halogen atom or an alkyl group having 1 to 5 carbon atoms.
Claim 5
Dependent Claim
20 words
The photocurable silicon compound composition according to claim 3, wherein R 3 represents a chlorine atom or a methyl group.
Claim 6
Dependent Claim
45 words
The photocurable silicon compound composition according to claim 1, wherein said silanol-condensing catalyst is selected from the group consisting of dibutyltin dilaurate, diacetylacetonate dichlorotin, lead octenoate, lead naphthenete, stannous naphthenate, stannic naphtenate, zinc octenoate, triphenylphosphine, BF 3 -mono- ethylamine, BF 3 -piperidine complex and trisacetylacetonatoiron.
Claim 7
Dependent Claim
21 words
The photocurable silicon compound composition according to claim 5, wherein said silanol-condensing catalyst is dibutyltin dilaurate, lead octenoate or zinc octenoate.
Claim 8
Dependent Claim
30 words
The photocurable silicon compound composition according to claim 5, wherein said silanol-condensing catalyst is contained in an amount of from 5 to 0.01% by weight based on the silicon compound.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1987-10-09 | 1988-04-09 | 1988-10-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-10-09 | 1992-04-09 | 1992-10-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-10-09 | 1996-04-09 | 1996-10-09 | $7700.00 | Window Closed / Lapsed |