Title:
粉末状Ｎ−ビニルカルボン酸アミド重合体組成物及びポリビニルアミン水溶液の製造方法
Document Type and Number:
Japanese Patent JP6561466
Kind Code:
B2
Abstract:
Provided is a precursor for producing polyvinylamine aqueous solution having high storage stability without any decrease in the viscosity of the precursor aqueous solution even with long-term storage when producing polyvinylamine aqueous solution. A powdered N-vinylcarboxamide polymer composition containing N-vinylcarboxamide polymer, the viscosity of an aqueous solution of polyvinylamine obtained by hydrolyzing the polymer being 1.0 × 10 6 mPa·s (25°C) or lower and the content of azo initiator in the aqueous solution being from more than 0 parts by mass to 0.05 parts by mass per 100 parts by mass of polyvinylamine.
Inventors:
Akihiro Ishii
Koji Mori
Koji Mori
Application Number:
JP2014546212A
Publication Date:
August 21, 2019
Filing Date:
September 08, 2014
Export Citation:
Assignee:
Mitsubishi Chemical Corporation
International Classes:
C08F8/12; C08F6/08; C08F26/02
Domestic Patent References:
| JP2006257287A | ||||
| JP8512352A | ||||
| JP2001253905A | ||||
| JP5125109A | ||||
| JP6239926A | ||||
| JP2010059220A |
Attorney, Agent or Firm:
Field Saki Satoshi
Shunsuke Fushimi
Kazunori Onami
Masatake Shiga
Tadashi Takahashi
Suzuki Mitsuyoshi
Shunsuke Fushimi
Kazunori Onami
Masatake Shiga
Tadashi Takahashi
Suzuki Mitsuyoshi