POLYMERIZATION CATALYSTS FOR POLYESTERS, POLYESTERS PRODUCED WITH THE SAME AND PROCESS FOR PRODUCTION OF POLYESTERS
申请人:Toyo Boseki Kabushiki Kaisha
公开号:EP1227117B1
公开(公告)日:2004-12-01
POLYESTER POLYMERIZATION CATALYST, POLYESTER PRODUCED BY USING THE SAME, AND A PROCESS FOR PRODUCING POLYESTER
申请人:NAKAJIMA Takahiro
公开号:US20070149757A1
公开(公告)日:2007-06-28
The present invention provides processes for producing polyester. In one of the embodiments, the invention provides a process for producing polyester, comprising adding a catalyst in a polycondensation reaction, esterification reaction or transesterification reaction between components comprising at least a polyfunctional alcohol and at least a polyfunctional carboxylic acid or ester-forming derivative of a polyfunctional carboxylic acid to produce the polyester; and obtaining the polyester, wherein the polymerization catalyst comprises an aluminum substance and a phosphorus compound, wherein the aluminum substance is selected from the group consisting of aluminum hydroxide and aluminum alkoxides, and wherein the phosphorus compound has an aromatic ring structure.