| 摘要 |
A POLYESTER HAVING A GOOD COLOR TONE, AN EXCELLENT FORMING PROPERTY AND HIGH RESISTANCE TO COHESION OF FOREIGN SUBSTANCE AROUND A MELT-SPINNING ORIFICE WHEN THE POLYESTER IS MELT-SPUN , IS PRODUCED BY POLYMERIZING AN AROMATIC DIFUNCTIONAL CARBOXYLIC ACID - ALKYLENEGLYCOL ESTER AND/ OR OLIGOMER THEREOF IN THE PRESENCE OF A CATALYST INCLUDING A REACTION PRODUCT OF (A) A TI COMPOUND COMPONENT INCLUDING A TI COMPOUND (1) OF FORMULA (I) OF FORMULA (I) OR A TI COMPOUND (2) PRODUCED BY REACTING THE TI COMPOUND (I) WITH AN AROMATIC DIFUNCTIONAL CARBOXYLIC ACID OF THE FORMULA (III) OR ANHYDRIDE THEREOF, WITH (B) A P COMPOUND COMPONENT SELECTED FROM P COMPOUND (3) OF THE FORMULA (III) [R1 = C2-C10 ALKYL GROUP ; P = 1-3, N = 2-4,R2 = SUBSTITUTED OR UNSUBSTITUTED C6-C20 ARYL OR C1 -C20 ALKYL GROUP , M = 1 OR 2, q =0 OR 1 , AND m+q = 1 OR 2]
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