Title:
IMPROVED MANUFACTURE OF POLYARYLATE
Document Type and Number:
Japanese Patent JPS5912923
Kind Code:
A
Abstract:
An improved process for preparing a polyarylate having a reduced viscosity of from about 0.1 to greater than 1.0 dl/gm comprising the following steps:(a) reacting an acid anhydride derived from an acid containing from 2 to 8 carbon atoms with at least one dihydric phenol to form the corresponding diester: and(b) reacting said diester with at least one aromatic dicarboxylic acid at a temperature sufficient to form the polyarylate, wherein the improvement comprises carrying out said process in the presence of a particular solid adsorbent.
Inventors:
JIEIMUSU HAJIME KAWAKAMI
BENITO SHII
TOOMASU RICHIYAADO JIYONZU
RUISU MAIKERU MARESUKA
BENITO SHII
TOOMASU RICHIYAADO JIYONZU
RUISU MAIKERU MARESUKA
Application Number:
JP11626483A
Publication Date:
January 23, 1984
Filing Date:
June 29, 1983
Export Citation:
Assignee:
UNION CARBIDE CORP
International Classes:
C08G63/18; C08G63/19; C08G63/193; C08G63/78; C08G63/00; C08G63/83; C08G63/90; C08L67/02; C08L67/03; (IPC1-7): C08G63/16; C08G63/22; C08G63/30; C08G67/04
Domestic Patent References:
| JP54034643B | ||||
| JP50136648B |
Attorney, Agent or Firm:
Takagi Rokuro