Patent ID: 6515072
Filing Date: 2003-02-04
Classification: C08F

Abstract:
A transparent rubber-modified styrenic resin composition, comprising:(1) a rubber-particle-dispersed phase (A) containing a rubbery copolymer which is a non-hydrogenated block copolymer formed from 10 to 50 wt % of styrenic monomers and 90 to 50 wt % of dienic monomers; wherein said rubbery copolymer contains polystyrene block in an amount of 5 to 35 wt %, based on total weight of said rubbery copolymer, said rubbery copolymer further containing from more than 8 wt % up to 18 wt % of 1,2-vinyl structure; and (2) a copolymer matrix (B) which is composed of 12 to 70 parts by weight of styrenic unit, 20 to 80 parts by weight of an ester of (meth)acrylic acid unit, 1 to 20 parts by weight of vinyl cyanide unit, and 0 to 40 parts by weight of other copolymerizable monomer units, based on 100 parts by weight of total monomer unit; wherein molecules of said copolymer matrix (B) having molecular weights of 3,000-50,000 are present in an amount of 15 to 50 wt %, based on the total weight of said copolymer matrix (B).