Patent ID: 6806320
Filing Date: 2004-10-19
Classification: C08F,C08L,C09J

Abstract:
A method of preparing a poly(meth)acrylate block copolymer, having meltflow temperature in the range from 50Â° C. to 250Â° C., the method comprising:reacting at least one low glass transition temperature polymeric block and at least one high glass transition temperature copolymeric end block comprising first monomeric units and second monomeric units to form the block copolymer, wherein the low glass transition temperature polymeric block has a glass transition temperature of less than about 20Â° C., and the high glass transition temperature copolymeric end block has a glass transition temperature of at least about 20Â° C., and selecting the second monomeric units to increase or decrease meltflow temperature of the block copolymer compared to a block copolymer that is otherwise similar but does not contain the second monomeric units, wherein at least one of the low glass transition temperature polymeric block and the high glass transition temperature copolymeric end block is derived from one or more (meth)acrylate monomer.