摘要 |
A process for the preparation of an aqueous solution or dispersion containing a cationic polymer, which comprises the steps of: polymerizing a monomer including an N-vinyl-carboxylic acid amide represented by the general formula CH2=CHNHCOR, wherein R represents a hydrogen atom or methyl group, in an aqueous medium in the presence of either or both of a polyethylene glycol and polypropylene glycol; and then modifying the resulting polymer with an acid or base. Furthermore, an aqueous composition containing a cationic polymer, which comprises (A) a modified N-vinylcarboxylic acid amide polymer, (B) either or both of a polyethylene glycol and polypropylene glycol, and (C) water is disclosed. |
申请人 |
MITSUBISHI CHEMICAL CORP., TOKIO/TOKYO, JP |
发明人 |
SATO, SHIN-ICHI, KITAKYUSYU, FUKUOKA, JP;OSHIDA, TAKAHIRO, KITAKYUSYU, FUKUOKA, JP;ONO, TAKASHI, KITAKYUSYU, FUKUOKA, JP;KUMA, KIYOJI, KITAKYUSYU, FUKUOKA, JP;MORI, YASUHARU, YOKOHAMA, KANAGAWA, JP;TAKEUCHI, ATSUO, YOKOHAMA, KANAGAWA, JP |