US 2002/0172873 A1Published application

Photosensitive resin composition, color filter, and copolymer resin useful for them

AssigneeDai Nippon Printing Co., Ltd.

InventorsKenji Ueda, Shunsuke Sega

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Abstract

A color filter including a transparent substrate, a colored layer on the substrate, and a protective layer on the colored layer. The protective layer is the product formed by exposing, developing, and heating a coating containing an epoxy-containing copolymer resin having 0 to 55% by mole of formula (1), 5 to 95% by mole of formula (2), and 5 to 95% by mole of formula (3), the formula (1) units having been partially reacted, through carboxyl groups, with a (meth)acryloylalkyl isocyanate compound, the formula (2) units having been partially reacted, through hydroxyl groups, with a (meth)acryloylalkyl isocyanate compound, the copolymer resin containing 5 to 95% by mole of (meth)acryloyl groups, an acid value of 0 to 400 mg KOH/g, and a weight average molecular weight of 5,000 to 1,000,000:

Claims5

Dependent claims

An epoxy-containing copolymer resin comprising 0 to 55% by mole of constituent units represented by formula (1), 5 to 95% by mole of constituent units represented by formula (2), and 5 to 95% by mole of constituent units represented by formula (3), the constituent units represented by formula (1) having been partially reacted, through carboxyl groups thereof, with a (meth)acryloylalkyl isocyanate compound, the constituent units represented by formula (2) having been partially reacted, through hydroxyl groups thereof, with a (meth)acryloylalkyl isocyanate compound, said copolymer resin containing 5 to 95% by mole of (meth)acryloyl groups and having an acid value of 0 to 400 mg KOH/g and a weight average molecular weight of 5,000 to 1,000,000 as determined using polystyrene as a standard:

4
wherein R represents hydrogen or an alkyl group having 1 to 5 carbon atoms;
R1 represents an alkylene group having 2 to 4 carbon atoms;
R2 represents an alkylene group having 1 to 4 carbon atoms;
Z represents a 1,2-epoxy, 1,3-epoxy, or 1,4-epoxy group;
and a, b, and c are integers respectively corresponding to said molar percentages.

3 more elements

A photosensitive resin composition comprising:

an alkali-developable photocurable copolymer resin;
an epoxy-containing copolymer resin;
a bifunctional or higher polyfunctional photopolymerizable acrylate monomer;
and an initiator,
said alkali-developable photocurable copolymer resin comprising 5 to 55% by mole of constituent units represented by formula (1) and 5 to 95% by mole of constituent units represented by formula (2), the constituent units represented by formula (1) having been partially reacted, through carboxyl groups thereof, with a (meth)acryloylalkyl isocyanate compound, the constituent units represented by formula (2) having been partially reacted, through hydroxyl groups thereof, with a (meth)acryloylalkyl isocyanate compound, said copolymer resin containing 5 to 95% by mole of (meth)acryloyl groups and having an acid value of 5 to 400 mg KOH/g and a weight average molecular weight of 5,000 to 1,000,000 as determined using polystyrene as a standard,
said epoxy-containing copolymer resin comprising 0 to 55% by mole of constituent units represented by formula (1), 5 to 95% by mole of constituent units represented by formula (2), and 5 to 95% by mole of constituent units represented by formula (3), the constituent units represented by formula (1) having been partially reacted, through carboxyl groups thereof, with a (meth)acryloylalkyl isocyanate compound, the constituent units represented by formula (2) having been partially reacted, through hydroxyl groups thereof, with a (meth)acryloylalkyl isocyanate compound, said copolymer resin containing 5 to 95% by mole of (meth)acryloyl groups and having an acid value of 0 to 400 mg KOH/g and a weight average molecular weight of 5,000 to 1,000,000 as determined using polystyrene as a standard:
6
wherein R represents hydrogen or an alkyl group having 1 to 5 carbon atoms;
R1 represents an alkylene group having 2 to 4 carbon atoms;
R2 represents an alkylene group having 1 to 4 carbon atoms;
Z represents a 1,2-epoxy, 1,3-epoxy, or 1,4-epoxy group;
and a, b, and c are integers corresponding respectively to contents in terms of % by mole of the constituent units.

9 more elements

Dependencies are inferred from the claim text.