Title:
VINYL ACETYLSALICYLATE-VINYL ALCOHOL-BASED COPOLYMER
Document Type and Number:
Japanese Patent JP3091366
Kind Code:
B2
Abstract:
PURPOSE: To obtain the subject copolymer containing specific units and capable of readily and freely controlling strength of pharmacodynamic effects and expecting wide utilization as a medicine.
CONSTITUTION: This copolymer has a unit of formula I and a unit of formula II and, as necessary, further a unit of formula III and a unit of formula IV. Furthermore, this copolymer has preferably 100-3000 polymerization degree and it contains preferably 1-30 (mol)% unit of formula I, 30-99 (mol)% unit of formula II, ≤40 (mol)% unit of formula III and ≤10 (mol)% unit of formula IV.
Inventors:
Makoto Oura
Yoshiro Onda
Kiyokazu Imai
Yoshiro Onda
Kiyokazu Imai
Application Number:
JP16310494A
Publication Date:
September 25, 2000
Filing Date:
June 22, 1994
Export Citation:
Assignee:
Shin-Etsu Chemical Co., Ltd.
International Classes:
C08F8/12; C08F16/02; C08F18/02; C08F18/14; C08F216/06; C08F218/02; C08F218/04; C08F218/08; C08F218/14; (IPC1-7): C08F8/12; C08F216/06; C08F218/04; C08F218/08; C08F218/14
Domestic Patent References:
| JP6172426A |
Attorney, Agent or Firm:
Shuji Iwamiya