US4594310A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Photopolymerizable composition comprising tertiary aromatic amine and hexaarylbiimazole initiators
Assignee: Mitsubishi Chemical Corp
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Filing: 1984-10-12
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Granted: 1986-06-10
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Expires: 2004-10-12
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: <IMAGE> (I) wherein R1 and R2 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: <IMAGE> (II) wherein Z is -O-,-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
US
Data Source
google_patents
Last Synchronized
2026-11-08 07:34
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
69 words
A photopolymerizable composition comprising an addition-polymerizable compound having at least one ethylenically unsaturated double bond and a photopolymerization initiator, characterized in that the said initiator comprises; (a) a compound represented by the general formula: ##STR7## wherein R 1 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 a nitrogen atom, and (b) hexaarylbiimidazole.
Claim 2
Dependent Claim
69 words
A photopolymerizable composition comprising an addition-polymerizable compound having at least one ethylenically unsaturated double bond and a photopolymerization initiator, characterized in that the said initiator comprises; (a) a compound represented by the general formula: ##STR7## wherein R 1 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 a nitrogen atom, and (b) hexaarylbiimidazole.
Claim 3
Dependent Claim
29 words
A photopolymerizable composition as set forth in claim 1, in which said initiator additionally contains a thiol represented by the formula: ##STR8## 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
23 words
A photopolymerizable composition 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.
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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) | 1989-06-09 | 1989-12-09 | 1990-06-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-06-09 | 1993-12-09 | 1994-06-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-06-09 | 1997-12-09 | 1998-06-10 | $7700.00 | Window Closed / Lapsed |