EP0389927A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Epoxysiloxane cure promoters and accelerators for cationic UV cure systems
Assignee: General Electric Co
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Filing: 1990-03-20
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Granted: —
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Expires: 2010-03-20
Abstract
Abstract Photopolymerizable coating compositions are described which comprise an organic cycloaliphatic polyepoxide in admixture with a cure accelerating amount of a low molecular weight alpha, omega-cycloaliphatic epoxy-functional siloxane which, when photocured using an onium salt photoinitiator, require less energy to cure, and thus coatings utilizing these compositions may be cured more rapidly under the same conditions than can compositions containing only the organic cycloaliphatic polyepoxide.
Inventors
- 👤 Richard Paul Eckberg
- 👤 Karen Dorothy Riding
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-09 17:00
CPC Classifications
C; C08; C08G; C08G59/00; C08G59/18; C08G59/20; C08G59/22; C08G59/24; C09; C09D; C09D163/00; C08G59/68; C08G77/00; C08G77/04; C08G77/045
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
63 words
A photopolymerizable cycloaliphatic epoxy coating composition comprising a cure accelerating amount of a cycloaliphatic epoxy-functional siloxane having the nominal formula R′R₂SiO(R₂SiO) x SiR₂R′ where each R individually is a lower alkyl radical having from 1 to 8 carbon atoms, R′is a monovalent organic cycloaliphatic epoxy-functional radical having from 2 to 20 carbon atoms, and x has a value from 0 to about 16.
Claim 2
Dependent Claim
63 words
A photopolymerizable cycloaliphatic epoxy coating composition comprising a cure accelerating amount of a cycloaliphatic epoxy-functional siloxane having the nominal formula R′R₂SiO(R₂SiO) x SiR₂R′ where each R individually is a lower alkyl radical having from 1 to 8 carbon atoms, R′is a monovalent organic cycloaliphatic epoxy-functional radical having from 2 to 20 carbon atoms, and x has a value from 0 to about 16.
Claim 3
Dependent Claim
80 words
A photopolymerizable coating composition comprising: (a) an organic cycloaliphatic polyepoxide; (b) a cure accelerating quantity of a cycloaliphaticepoxy-functional siloxane having the nominal formula R′R₂SiO(R₂SiO) x SiR₂R′ where each R individually is a lower alkyl radical having from 1 to 8 carbon atoms, R′ is a monovalent organic cycloaliphatic epoxy-functional radical having from 2 to 20 carbon atoms, and x has a value from zero to about 16; and (c) a catalytic amount of a photocatalyst or a combination of photocatalysts.
Claim 4
Dependent Claim
80 words
A photopolymerizable coating composition comprising: (a) an organic cycloaliphatic polyepoxide; (b) a cure accelerating quantity of a cycloaliphaticepoxy-functional siloxane having the nominal formula R′R₂SiO(R₂SiO) x SiR₂R′ where each R individually is a lower alkyl radical having from 1 to 8 carbon atoms, R′ is a monovalent organic cycloaliphatic epoxy-functional radical having from 2 to 20 carbon atoms, and x has a value from zero to about 16; and (c) a catalytic amount of a photocatalyst or a combination of photocatalysts.
Claim 5
Dependent Claim
9 words
The composition of claim 2 wherein R is methyl.
Claim 6
Dependent Claim
14 words
The composition of claim 2 wherein the photocatalyst is an aromatic iodonium complex salt.
Claim 7
Dependent Claim
14 words
The composition of claim 2 wherein the value of x is less than 10.
Claim 8
Dependent Claim
13 words
The composition of claim 2 wherein R is methyl and R′ is 3,4-epoxycyclohexyl-1-ethyl.
Claim 9
Dependent Claim
18 words
The composition of claim 2 wherein R is methyl and the value of x is less than 10.
Claim 10
Dependent Claim
16 words
The composition of claim 2 wherein R is methyl and the value of x is zero.
References Cited (Backward Citations)
No citation records indexed.
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