Photosensitive resin composition and process for the formation of hydrogel
AssigneeToyo Gosei Co., Ltd.
InventorsShin Utsunomiya, Seigo Yamada, Masahiro Takano, Mitsuharu Miyazaki
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Abstract
The photosensitive resin composition is composed of a poly((meth)acrylic acid)-based water-soluble photo-sensitive resin (A) having an acid value of 150 mgKOH/g or more on a solid basis; the resin (A) being formed of a ((meth)acrylic acid)-based polymer in which a compound represented by formula (1): (wherein R1 represents H or Me; and R2 represents a liner or branched C2-C10 alkylene group) has been added to portions of the carboxylic groups, a photopolymerization initiator (B); and water (C).
Claims4
A method for forming a hydrogel by subjecting a photosensitive resin composition to photopolymerization, the photosensitive resin composition comprising
- a poly((meth)acrylic acid)-based water-soluble photo-sensitive resin (A) having an acid value of 170 mgKOH/g or more on a solid basis;
- the resin (A) being formed of a ((meth)acrylic acid)-based polymer in which a compound represented by formula (1):
- wherein R1 represents H or Me;
- and R2 represents a linear or branched C2-C10 alkylene group, has been added to portions of carboxyl groups of (meth)acrylic acid composing the ((meth)acrylic acid)-based polymer,
- a photopolymerization initiator (B);
- and
- water (C).
A hydrogel produced by subjecting a photosensitive resin composition to photopolymerization, the photosensitive resin composition comprising
- a poly((meth)acrylic acid)-based water-soluble photo-sensitive resin (A) having an acid value of at least about 170 mgKOH/g on a solid basis;
- the resin (A) being formed of a ((meth)acrylic acid)-based polymer in which a compound represented by formula (1):
- wherein R1 represents H or Me;
- and R2 represents a linear or branched C2-C10 alkylene group, has been added to portions of carboxyl groups of (meth)acrylic acid composing the ((meth)acrylic acid)-based polymer,
- a photopolymerization initiator (B);
- and
- water (C).
Dependencies are inferred from the claim text.