Patent ID: 7544762
Filing Date: 2009-06-09
Classification: C08G,C08J,D01F

Abstract:
1. A catalyst for preparation of a polyester, comprising a reaction product of: (A) a titanium compound component comprising at least one member selected from titanium compounds (1) represented by the general formula (I): in which formula (i), R 1 , R 2 , R 3 and R 4 respectively and independently from each other represent an alkyl group having 2 to 10 carbon atoms, k represents an integer of 1 to 3 and, when k is 2 or 3, two or three R 2 and R 3 substituents are the same as or different from each other, and titanium compounds (2) obtained by reacting the titanium compounds (1) of the general formula (I) with aromatic polycarboxylic acids represented by the general formula (II): in which formula (II), m represents an integer of 2 to 4, or anhydrides of the acids of the formula (II); and (B) a phosphorus compound component comprising at least one member of phosphorus compounds (3) represented by the general formula (III): in which formula (III), R 5 represents a non-substituted or substituted aryl group having 6 to 20 carbon atoms, or a non-substituted or substituted alkyl group having 1 to 20 carbon atoms, wherein, in the reaction product of the titanium compound component (A) with the phosphorus compound component (B): (1) acetic acid is contained, and (2) a reaction molar ratio (m