Title:
【発明の名称】ビニルラクタム三元共重合体の沈殿重合
Document Type and Number:
Japanese Patent JP2991491
Kind Code:
B2
Abstract:
What is described herein is a precipitation polymerization process and terpolymer products produced thereby. Polymerization is carried out in a reaction mixture of a vinyl lactam, e.g. vinyl pyrrolidone or vinyl caprolactam, a polymerizable carboxylic acid, e.g. acrylic acid or methacrylic acid, and a hydrophobic monomer, e.g. lauryl methacrylate, in a predetermined compositional range, in the presence of a polymerization initiator, and in an aliphatic hydrocarbon solvent, particularly a C3-C10 saturated hydrocarbon, which is branched or unbranched, cyclic or acylic, and, preferably, is heptane or cyclohexane. The terpolymers are obtained in high yield, as a white powder, which can be filtered and dried easily.
Inventors:
SHII IEN ESU
SUMISU TERII II
ROJIN ROBAATO BII
SUMISU TERII II
ROJIN ROBAATO BII
Application Number:
JP50922790A
Publication Date:
December 20, 1999
Filing Date:
June 14, 1990
Export Citation:
Assignee:
AI ESU PII INUESUTOMENTSU INC
International Classes:
C08F2/04; C08F6/04; C08F26/06; C08F26/10; C08F220/04; C08F2/06; C08F220/10; C08F220/18; C08F222/02; C08F226/06; C08F226/10; C11D3/37; (IPC1-7): C08F226/06; C08F2/06; C08F6/04; C08F220/04; C08F222/02
Attorney, Agent or Firm:
Akihide Sugimura (1 outside)