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Machine translation
1. (WO1998050448) PROCESS FOR CONTINUOUSLY PRODUCING POLYESTERS
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/1998/050448    International Application No.:    PCT/JP1998/001977
Publication Date: 12.11.1998 International Filing Date: 30.04.1998
IPC:
C08G 63/78 (2006.01)
Applicants: TEIJIN LIMITED [JP/JP]; 6-7, Minamihommachi 1-chome Chuo-ku Osaka-shi Osaka 541-8587 (JP) (AT, BE, CH, CY, DE, DK, ES, FI, FR, GB, GR, IE, IT, JP, KR, LU, MC, NL, PT, SE only).
MIYAJIMA, Kazumoto [JP/JP]; (JP) (For US Only).
KURIHARA, Hideshi [JP/JP]; (JP) (For US Only)
Inventors: MIYAJIMA, Kazumoto; (JP).
KURIHARA, Hideshi; (JP)
Agent: MAEDA, Sumihiro; Teijin Limited Intellectual Property Dept. 1-1, Uchisaiwaicho 2-Chome Chiyoda-ku Tokyo 100-8585 (JP)
Priority Data:
9/115570 06.05.1997 JP
Title (EN) PROCESS FOR CONTINUOUSLY PRODUCING POLYESTERS
(FR) PROCEDE DE PRODUCTION CONTINUE DE POLYESTERS
Abstract: front page image
(EN)A process for continuously producing polyesters by continuously melt-polymerizing starting materials composed of a dicarboxylic acid mainly comparing an aromatic dicarboxylic acid, an alicyclic dicarboxylic acid, an aliphatic dicarboxylic acid, or an ester-forming derivative of such acids and a diol component, characterized by condensing the diol component which is a distillate containing an adherent substance in a polycondensation reaction, removing the adherent substance by centrifugation, distilling the remaining diol component, and subjecting the obtained distillate to esterification or transesterification.
(FR)Cette invention concerne un procédé de production continue de polyesters, lequel consiste à polymériser à l'état fondu et de manière continue des matières de base comprenant un composant diol et un acide dicarboxylique qui consiste principalement en un acide dicarboxylique aromatique, un acide dicarboxylique alicyclique, un acide dicarboxylique aliphatique, ou un dérivé de ces acides formateur d'ester. Ce procédé se caractérise en ce que l'on condense le composant diol, qui est un distillat contenant une substance adhésive, au cours d'une réaction de polycondensation. On élimine ensuite la substance adhésive par effet centrifuge, après quoi on distille le composant diol restant et l'on soumet le distillat obtenu à une estérification ou à une transestérification.
Designated States: JP, KR, US.
European Patent Office (AT, BE, CH, CY, DE, DK, ES, FI, FR, GB, GR, IE, IT, LU, MC, NL, PT, SE).
Publication Language: Japanese (JA)
Filing Language: Japanese (JA)