Title:
Ｎ−ビニルカルボン酸アミド系重合体の製造方法
Document Type and Number:
Japanese Patent JP5584962
Kind Code:
B2
Abstract:
The present invention provides a process for producing an N-vinylamide polymer in an efficient manner by an aqueous solution polymerization method in which a gel-like polymer having an excellent handling property can be produced, and a polymerization time can be shortened. The process for producing an N-vinylamide polymer by subjecting a monomer component comprising N-vinylamide to aqueous solution polymerization according to the present invention comprises the step of polymerizing the monomer component comprising N-vinylamide in the presence of an inorganic salt, which inorganic salt is present in an amount of not less than 7% by mass based on water in a uniform aqueous solution comprising the monomer component at a concentration not more than a saturated solution concentration thereof as measured at a polymerization initiation temperature.
Inventors:
Koji Shimizu
Application Number:
JP2008222999A
Publication Date:
September 10, 2014
Filing Date:
September 01, 2008
Export Citation:
Assignee:
Mitsubishi Rayon Co., Ltd.
International Classes:
C08F2/44; C08F2/48; C08F6/00; C08F26/02
Attorney, Agent or Firm:
Kazuhiko Okada
Patent business corporation Yukinari patent firm
Patent business corporation Yukinari patent firm