Title:
アミン官能性共重合体及びその製造方法
Document Type and Number:
Japanese Patent JP4385633
Kind Code:
B2
Abstract:
An amine-functional copolymer improved in color and odor, and a method for efficiently producing the amine-functional copolymer in the form of a powder by efficiently hydrolyzing a vinyl alcohol/N-vinyl carboxamide, are provided. The amine-functional copolymer, of which a 10 wt% aqueous solution has a Gardner index of at most 3 as measured in accordance with ASTM D1544. Such a copolymer is obtainable by a method for producing an amine functional copolymer by hydrolyzing N-vinyl carboxamide copolymer in the presence of an acid or base catalyst, wherein the hydrolysis is carried out in an aqueous medium having a salt dissolved therein.
Inventors:
Yasuhiro Ito
Masato Aoyama
Kohei Sawa
Masato Aoyama
Kohei Sawa
Application Number:
JP2003111506A
Publication Date:
December 16, 2009
Filing Date:
April 16, 2003
Export Citation:
Assignee:
Mitsubishi Chemical Corporation
International Classes:
C08F216/06; C09D129/04; C08F8/12; C08F226/02; C09D139/02; C09D201/02; D21H19/20; D21H27/00
Domestic Patent References:
| JP2002145926A | ||||
| JP61118406A |