composition based on aliphatischem polyester resin, polyester resin formku00f6rper from aliphatischem and processes for the manufacture of formku00f6rpers from aliphatischem polyester resin

摘要

An aliphatic polyester resin composition from which a molding with excellent properties can be obtained without suffering deformation at mold release under molding conditions, such as molding cycle, comparable to those for general-purpose resins in practical use; an aliphatic polyester resin molding obtained by melt molding of the above aliphatic polyester resin composition; and a process for producing the aliphatic polyester resin molding from the above aliphatic polyester resin composition. There is provided an aliphatic polyester resin composition comprising an aliphatic polyester resin containing a specified aromatic sulfonic acid salt having its ends blocked with C1-C6 hydrocarbon groups as a crystal nucleating agent.