US5362603A
Expired / Lapsed
US
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Photopolymerizable composition for color filter and color filter prepared therefrom
Assignee: Nippon Kayaku Co Ltd
•
Filing: 1992-05-14
•
Granted: 1994-11-08
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Expires: 2012-05-14
Abstract
Abstract The present invention relates to a photopolymerizable composition containing a photopolymerizable compound having at least one ethylenically unsaturated double bond, a photopolymerization initiator, a pigment and optionally another resin, wherein said photopolymerizable compound contained therein comprises not less than 60%.
Inventors
- 👤 Yoshinori Katoh
- 👤 Naoko Ichinose
- 👤 Teruhito Sotogoshi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 04:10
CPC Classifications
G; G03; G03F; G03F7/00; G03F7/0005; G03F7/0007; G03F7/004; G03F7/027; G03F7/038; G03F7/0388
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
69 words
A photopolymerizable composition for color filter containing a photosensitive resin which comprises a photopolymerizable compound having at least one ethylenically unsaturated double bond, a photopolymerization initiator, and a pigment characterized in that said photopolymerizable compound is contained in an amount not less than 60% by weight of the photosensitive resin and said pigment is used in an amount of 10 to 60% by weight based on the photosensitive resin.
Claim 2
Dependent Claim
69 words
A photopolymerizable composition for color filter containing a photosensitive resin which comprises a photopolymerizable compound having at least one ethylenically unsaturated double bond, a photopolymerization initiator, and a pigment characterized in that said photopolymerizable compound is contained in an amount not less than 60% by weight of the photosensitive resin and said pigment is used in an amount of 10 to 60% by weight based on the photosensitive resin.
Claim 3
Dependent Claim
34 words
The photopolymerizable composition for color filter according to claim 1, wherein said photopolymerization initiator is a mixture comprising a compound represented by the formula (1): ##STR19## a thioxanthone compound and optionally another photopolymerization initiator.
Claim 4
Dependent Claim
23 words
The photopolymerizable composition for color filter according to claim 2, wherein said another photopolymerization initiator comprises a hexaarylbisimidazole compound and a hydrogen donor.
Claim 5
Dependent Claim
18 words
The photopolymerizable composition for color filter according to claim 3, wherein said hydrogen donor is an aromatic mercaptan.
Claim 6
Dependent Claim
18 words
The photopolymerizable composition for color filter according to claim 4, wherein said aromatic mercaptan is 2-mercaptobenzothiazole or 2-mercaptobenzoxazole.
Claim 7
Dependent Claim
18 words
The photopolymerizable composition for color filter according to claim 3, wherein said hydrogen donor is an aromatic amine.
Claim 8
Dependent Claim
27 words
The photopolymerizable composition for color filter according to claim 1, wherein said photopolymerizable compound is a compound having an ethylenically unsaturated double bond and a carboxyl group.
Claim 9
Dependent Claim
84 words
The photopolymerizable composition for color filter according to claim 7, wherein said photopolymerizable compound having an ethylenically unsaturated double bond and a carboxyl group is a compound represented by the formula (2): ##STR20## wherein X represents ##STR21## but at least one of X is represented by the formula (b); R 1 , R 2 and R 3 independently represent a hydrogen atom or a methyl group; A represents an aliphatic or cyclic hydrocarbon chain; and n is a number of from 0 to 20.
Claim 10
Dependent Claim
75 words
The photopolymerizable composition for color filter according to claim 7, wherein said photopolymerizable compound having an ethylenically unsaturated double bond and a carboxyl group is a compound represented by the formula (3): ##STR22## wherein X represents ##STR23## but at least one of X is represented by the formula (b); R 1 , R 2 and R 3 independently represent a hydrogen atom or a methyl group; and A represents an aliphatic or cyclic hydrocarbon chain.
Claim 11
Dependent Claim
67 words
The photopolymerizable composition for color filter according to claim 7, wherein said photopolymerizable compound having an ethylenically unsaturated double bond and a carboxyl group is a compound represented by the formula (4): ##STR24## wherein X represents ##STR25## but at least one of X is represented by the formula (b), R represents a hydrogen atom or a methyl group, and A represents an aliphatic or cyclic hydrocarbon chain.
Claim 12
Dependent Claim
75 words
The photopolymerizable composition for color filter according to claim 7, wherein said photopolymerizable compound having an ethylenically unsaturated double bond and a carboxyl group is a compound represented by the formula (5): ##STR26## wherein X represents ##STR27## but at least one of X is represented by the formula (b), R 1 , R 2 and R 3 independently represent a hydrogen atom or a methyl group, and A represents an aliphatic or cyclic hydrocarbon chain.
Claim 13
Dependent Claim
71 words
The photopolymerizable composition for color filter according to claim 7, wherein said photopolymerizable compound having an ethylenically unsaturated double bond and a carboxyl group is a compound represented by the formula (6): ##STR28## wherein A represents ##STR29## but at least one of A is represented by the formula (d), R represents a hydrogen atom or a methyl group, n is from 1 to 3 and m is from 1 to 20.
Claim 14
Dependent Claim
19 words
The photopolymerizable composition for color filter according to claim 1, which further comprises a compound having an epoxy group.
Claim 15
Dependent Claim
27 words
The photopolymerizable composition for color filter according to claim 1, wherein said pigment is a pigment treated with a dispersing agent and a derivative of coloring matter.
Claim 16
Dependent Claim
19 words
The photopolymerizable composition for color filter according to claim 1, wherein said photosensitive resin further comprises a binder resin.
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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) | 1997-11-07 | 1998-05-09 | 1998-11-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2001-11-07 | 2002-05-09 | 2002-11-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2005-11-07 | 2006-05-09 | 2006-11-08 | $7700.00 | Window Closed / Lapsed |