Title:
重縮合物の分子量増加
Document Type and Number:
Japanese Patent JP4143983
Kind Code:
B2
Abstract:
PCT No. PCT/EP95/03937 Sec. 371 Date Apr. 9, 1997 Sec. 102(e) Date Apr. 9, 1997 PCT Filed Oct. 5, 1995 PCT Pub. No. WO96/11978 PCT Pub. Date Apr. 25, 1996The invention relates to a process for increasing the molecular weight of polycondensates, which comprises heating a polycondensate in the temperature range below the melting point and above the glass transition temperature in the solid phase of the polymer with additionof at least one sterically hindered hydroxyphenylalkylphosphonic ester or monoester.
Inventors:
Faendner, Rudolf
Hoffman, Kurz
Help strike, heinz
Hoffman, Kurz
Help strike, heinz
Application Number:
JP51290596A
Publication Date:
September 03, 2008
Filing Date:
October 05, 1995
Export Citation:
Assignee:
Ciba Holding Inc.
International Classes:
C08G69/48; C08G59/18; C08J11/04; C08G63/80; C08G63/91; C08G64/20; C08G64/40; C08G64/42; C08G69/06; C08G85/00; C08K5/5313; C08K5/5333
Domestic Patent References:
| JP6239879A | ||||
| JP8508776A |
Attorney, Agent or Firm:
Calyx
Toshio Nakamura
Miyazaki Yoshio
Tsutomu Kato
Toshio Nakamura
Miyazaki Yoshio
Tsutomu Kato