Patent ID: 6740708
Filing Date: 2004-05-25
Classification: C08J,C08L

Abstract:
Process for the preparation of an impact-resistant polymer composition comprising a rubber composition dispersed in a matrix polymer, said process comprising melt mixing a solid matrix polymer A with a solid comprising said rubber composition dispersed in a matrix polymer B at a weight ratio of matrix polymer B to rubber composition in the range of 80:20 to 30:70, wherein the solid dispersion of said rubber composition in matrix polymer B is the product obtained by melt mixing of matrix polymer B with a rubber composition that contains at least one functionalized rubber containing groups that can react with matrix polymer A and/or B, and at least one non-functionalized rubber and wherein said impact-resistant rubber composition comprises 0.5-75 parts by weight of rubber composition per 100 parts by weight in total of matrix polymers A and B.