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Title:
AMINO VINYL ALCOHOL POLYMER
Document Type and Number:
Japanese Patent JP3720467
Kind Code:
B2
Abstract:

PROBLEM TO BE SOLVED: To obtain a modified vinyl alcohol polymer having an amino acid group and excellent functional properties and being useful as a textile size, a textile processing agent, a pigment dispersant or the like by introducing a specified amount of specified amino acid-containing units into a vinyl alcohol polymer.
SOLUTION: This polymer is obtained by introducing 0.01-30mol% units each represented by formula I or II (wherein R1, R2, R3, R4 and R5 are each H or an 8C or lower hydrocarbon group which may have a substituent; A is a divalent hydrocarbon group which may contain an atom such as nitrogen, oxygen or sulfur; S is a sulfur atom; and X is a monovalent amino acid- containing group) into a vinyl alcohol polymer mainly consisting of vinyl alcohol units. It can be produced by for example a method comprising reacting a copolymer of a vinyl ester monomer with an epoxy vinyl monomer (e.g. methallyl glycidyl ether) with an amino thiol (e.g. N-methylcysteine) and hydrolyzing the product.


Inventors:
Toshiaki Sato
FUJIWARA NAOKI
Seiji Tanimoto
Application Number:
JP18909396A
Publication Date:
November 30, 2005
Filing Date:
July 18, 1996
Export Citation:
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Assignee:
KURARAY CO.,LTD.
International Classes:
C08F226/02; C08F8/12; C08F8/30; C08F8/34; C08F16/02; C08F16/14; C08F26/00; C08F28/00; C08F216/06; C08F216/14; C08F228/02; (IPC1-7): C08F8/12; C08F8/30
Domestic Patent References:
JP9100320A
JP63006463A
JP60195103A
JP60158203A