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EP0138187A2
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Photopolymerizable composition
Assignee: Mitsubishi Chemical Corp
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Filing: 1984-10-09
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Granted: —
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Expires: 2004-10-09
Abstract
Abstract A photopolymerizable composition comprising an addition-polymerizable compound having at least one ethylenically unsaturated double bond and a photopolymerization initiator, characterized in that the initiator comprises (a) a compound of the formula: wherein R 1 and R 2 are alkyl group, n is 1, 2 or 3 and ring A is an aromatic ring containing nitrogen atom, and (b) hexaarylbiimidazole. The initiator may additionally contain a thiol of the formula: wherein Z is -0-, -S- or -NH-. The composition is not only highly sensitive to ultraviolet ray but also highly stable in storage.
Inventors
- 👤 Hideki Nagasaka
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-04 06:07
CPC Classifications
C; C08; C08F; C08F2/00; C08F2/46; C08F2/48; C08F2/50; G; G03; G03F; G03F7/00; G03F7/004; G03F7/027; G03F7/028; G03F7/031; Y; Y10; Y10S; Y10S430/00; Y10S430/1053; Y10S430/1055; Y10S430/114; Y10S430/117; Y10S430/12; Y10S430/121
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
65 words
A photopolymerizable composition comprising an addition-polymerizable compound having at least one ethylenically unsaturated double bond and a photopolymerization initiator, characterized in that said initiator comprises; (a) a compound represented by the general formula: wherein R and R 2 are an alkyl group, respectively, n is an integer of 1, 2 or 3 and ring A is an aromatic ring containing nitrogen atom, and (b) hexaarylbiimidazole.
Claim 2
Dependent Claim
65 words
A photopolymerizable composition comprising an addition-polymerizable compound having at least one ethylenically unsaturated double bond and a photopolymerization initiator, characterized in that said initiator comprises; (a) a compound represented by the general formula: wherein R and R 2 are an alkyl group, respectively, n is an integer of 1, 2 or 3 and ring A is an aromatic ring containing nitrogen atom, and (b) hexaarylbiimidazole.
Claim 3
Dependent Claim
28 words
A photopolymerizable composition as set forth in claim 1, in which said initiator additionally contains a thiol represented by the formula: wherein Z is -O-, -S- or -NH-.
Claim 4
Dependent Claim
26 words
A photopolymerizable composition as set forth in claim 1, in which said addition-polymerizable compound having at least one ethylenically unsaturated double bond is acrylate or methacrylate.
Claim 5
Dependent Claim
24 words
A photopolymerizable composation as set forth in claim 1, in which said compound of the general formula (I) is 2-(p-dialkylaminophenyl)benzoxazole, 2-(p-dialkylaminophenyl)benzo-[4,5]benzoxazole or 2,5-bis(p-dialkylaminophenyl)-1,3,4-oxadiazole. ;
Claim 6
Dependent Claim
17 words
A photopolymerizable composition as set forth in claim 1, in which said hexaarylbiimidazole is 2,2'-bis(o-chlorophenyl)-4,4',5,5'-tetraphenylbiimidazole or 2,2'-bis(o-bromophenyl)-4,4',5,5'-tetraphenylbiimidazole.
References Cited (Backward Citations)
No citation records indexed.
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