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US 2014/0350169 A1Published application
Vinyl alcohol polymer, method for producing same, and composition and coating agent containing vinyl alcohol polymer
AssigneeKuraray Co., Ltd.
InventorsTakuma Kaneshima, Yusuke Amano, Keisuke Morikawa, Naoki Fujiwara, Kensuke Nagashima, Katsuji Ujita
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Abstract
The present invention provides a vinyl alcohol polymer having a mercapto group and having excellent reactivity. The present invention is a side-chain mercapto group-containing vinyl alcohol polymer including vinyl alcohol units and structural units represented by the following formula (I) (the characters in the formula are as defined in the description):
Claims6
A side-chain mercapto group-containing vinyl alcohol polymer comprising vinyl alcohol units and structural units represented by the following formula (I):
- where R1 is a hydrogen atom or a carboxyl group, R2 is a hydrogen atom, a methyl group, a carboxyl group, or a carboxymethyl group, and X is a bivalent group that contains a carbon atom and a hydrogen atom and that may contain a nitrogen atom and/or an oxygen atom, the bivalent group containing 1 to 22 carbon atoms,
- wherein
- when R1 is a carboxyl group, the carboxyl group may form a ring with a hydroxyl group of an adjacent vinyl alcohol unit, and
- when R2 is a carboxyl group or a carboxymethyl group, the carboxyl group or the carboxymethyl group may form a ring with a hydroxyl group of an adjacent vinyl alcohol unit.
1 more element
Dependencies are inferred from the claim text.