Patent ID: 6440556
Filing Date: 2002-08-27
Classification: D01D,D01F,Y10T

Abstract:
A fiber comprising (A) a fiber component comprising a crystalline aliphatic polyester having a melting point of not less than 140Â° C. and a heat of fusion of at least 20 J/g, and (B) a fiber component comprising a block copolymer and/or a mixture of at least two aliphatic polyesters, the difference in melting point between which is at least 10Â° C., said block copolymer and/or mixture containing (H) 95 to 10% by weight of a high-melting component having a melting point of not less than 110Â° C. and a heat of fusion of at least 3 J/g and (S) 5 to 90% by weight of a low-melting component having a melting point of 40 to 120Â° C. and a heat of fusion of at least 3 J/g.