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Title:
METHOD FOR PRODUCING VINYLALCOHOL-VINYLAMINE COPOLYMER
Document Type and Number:
Japanese Patent JP2002161110
Kind Code:
A
Abstract:

To provide a method for producing efficiently vinylalcohol-Nvinylamine copolymer that is free from residual solvent and has high amine conversion and little uneven distribution of amine conversion inside the product.

Vinylalcohol-N-vinylcarboxylic amide copolymer of 20-80% by weight water content is supplied to an extruder and converted to amine in the presence of alkali.


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Inventors:
SHIBUYA MITSUO
Application Number:
JP2000361239A
Publication Date:
June 04, 2002
Filing Date:
November 28, 2000
Export Citation:
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Assignee:
NIPPON SYNTHETIC CHEM IND
MITSUBISHI CHEM CORP
International Classes:
C08F8/12; C08F216/06; C08F226/02; (IPC1-7): C08F8/12; C08F216/06; C08F226/02
Domestic Patent References:
JP2000219706A2000-08-08
JPH08245718A1996-09-24
JPH06122712A1994-05-06
JPS55145705A1980-11-13
JPS6137801A1986-02-22
JP2000219706A2000-08-08
JPH08245718A1996-09-24
JPH06122712A1994-05-06
JPS55145705A1980-11-13
JPS6137801A1986-02-22



 
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