Copolyester composition and method for producing copolyester polymer
AssigneeFar Eastern New Century Corporation
InventorsChih-Ying Kuo, Chuan-Hao Hsu, Chi-Wei Ciou, Li-Ling Chang, Roy Wu
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Abstract
A copolyester composition includes: an aliphatic-aromatic copolyester; a coupling agent including a compound having an epoxy functional group; and a cocatalyst including a carboxylate of manganese and a carboxylate of zinc, wherein a weight ratio of the carboxylate of manganese to the carboxylate of zinc ranges from 1:3 to 3:1, and the cocatalyst is present in an amount ranging from 0.03-0.2 part by weight based on 100 parts by weight of the aliphatic-aromatic copolyester.
Claims20
A copolyester composition comprising:
- an aliphatic-aromatic copolyester;
- a coupling agent including a compound having an epoxy functional group;
- and
- a cocatalyst including a carboxylate of manganese and a carboxylate of zinc, wherein a weight ratio of said carboxylate of manganese to said carboxylate of zinc ranges from 1:3 to 3:1, and said cocatalyst is present in an amount ranging from 0.03-0.2 part by weight based on 100 parts by weight of said aliphatic-aromatic copolyester.
A method for producing a thermo-stable copolyester polymer, comprising reacting an aliphatic-aromatic copolyester with a coupling agent that includes an epoxy functional group in the presence of a cocatalyst;
- wherein the cocatalyst includes a carboxylate of manganese and a carboxylate of zinc at a weight ratio ranging from 1:3 to 3:1, and the cocatalyst is present in an amount ranging from 0.03-0.2 part by weight based on 100 parts by weight of the aliphatic-aromatic copolyester.
Dependencies are inferred from the claim text.