Patent ID: 6773821
Filing Date: 2004-08-10
Classification: C08F,C08L,Y10T

Abstract:
A resin composition suitable for extrusion to prepare a capstock using a multi-manifold die comprising (a) 80 to 30 parts by weight of an impact modifier having a multilayer structure and (b) 20 to 70 parts by weight of a methyl methacrylate polymer comprising 50 to 100% by weight of methyl methacrylate and 50 to 0% by weight of a copolymerizable monomer, the total of said impact modifier (a) and said methyl methacrylate polymer (b) being 100 parts by weight and said composition having an MFI (melt flow index measured according to ASTM D-1238 at 230Â° C. and a load of 3.8 kg) of not more than 0.35 g/10 minutes, wherein said methyl methacrylate polymer (b) comprises 5 to 90% by weight of a methyl methacrylate polymer having a molecular weight of not less than 500,000 and 95 to 10% by weight of a methyl methacrylate polymer having a molecular weight of less than 500,000.