Title:
MANUFACTURE OF POLYESTER COPOLYMER
Document Type and Number:
Japanese Patent JPS59230023
Kind Code:
A
Abstract:
The invention is a process for esterifying organic dicarboxylic acid and diol at elevated temperatures and thereafter transesterifying the esterification product in the presence of a diol and a diester at elevated temperatures thereafter polymerizing the transesterification product in a condensation stage to form a polycondensed copolyester having an intrinsic viscosity from 0.2 to 0.9.
Inventors:
MERISU MAIKERU KERII
KAARU MOORISU SARIBAN
KAARU MOORISU SARIBAN
Application Number:
JP8823284A
Publication Date:
December 24, 1984
Filing Date:
May 01, 1984
Export Citation:
Assignee:
GOODYEAR TIRE & RUBBER
International Classes:
C08G63/00; C08G63/78; (IPC1-7): C08G63/22
Domestic Patent References:
| JPS5092395A | 1975-07-23 | |||
| JPS5092394A | 1975-07-23 | |||
| JPS5382840A | 1978-07-21 | |||
| JPS476035A |
Attorney, Agent or Firm:
Kyozo Yuasa
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