Patent ID: 8859690
Filing Date: 2014-10-14
Classification: C08K,C08L

Abstract:
1. A biodegradable composite prepared using a first feedstock comprising a polylactic acid, an aliphatic-aromatic copolyester A, an aliphatic-aromatic copolyester B, and an organic peroxide at a temperature between about 100° C. and about 200° C., wherein, based on the total weight of said first feedstock, a content of the polylactic acid is about 45% to about 90% by weight, wherein said aliphatic-aromatic copolyester A is formed by using an esterification feedstock comprising: (a) C wherein said aliphatic-aromatic copolyester B is a random copolymer comprising structure unit (I) and structure unit (II), wherein the molar ratio of structure unit (I) to structure unit (II) is about 1 to about 0.1-10, wherein m is an integer of from 2 to 10, wherein n is an integer of from 2 to 8, and wherein p is an integer of from 2 to 10, and wherein the weight-average molecular weight of said aliphatic-aromatic copolyester B is about 100000 to about 600000, wherein a weight ratio between said aliphatic-aromatic copolyester A and said aliphatic-aromatic copolyester B is about 4:6 to about 8:2.