Patent ID: 7989062

Claim:
A biodegradable nonwoven web comprising substantially continuous multicomponent filaments, wherein the multicomponent filaments comprise a first component and a second component, the first component containing a first aliphatic polyester having a melting point of from about 160° C. to about 250° C. and the second component containing a second aliphatic polyester, wherein the melting point of the second aliphatic polyester is at least about 30° C. less than the melting point of the first aliphatic polyester, and wherein the second aliphatic polyester has a number average molecular weight of from about 30,000 to about 120,000 Daltons, a glass transition temperature of less than about 25° C., and an apparent viscosity of from about 50 to about 215 Pascal-seconds, as determined at a temperature of 160° C. and a shear rate of 1000 sec −1 , wherein the second component is free of a multi-carboxylic acid nucleating agent.