POLYCARBONATE/POLYESTER BLEND MODIFIED WITH COMBINATION OF DIENE-BASE GRAFT POLYMER AND POLYORGANOSILOXANE-BASE GRAFT POLYMER

摘要

PURPOSE: To obtain a polycarbonate/polyester blend containing a combination of a multi-stage graft polymer composition based on a polyorganosiloxane with a graft copolymer composition based on a diene rubber and being excellent in low-temperature impact resistance, etc. ;CONSTITUTION: An amount of 1-99 pts.wt. of polycarbonate resin (A₁), a mixture (A₂) comprising A₁ and a saturated polyester resin, a mixture (A₃) comprising A₁, a poly(ether ester), etc., or a mixture (A₄) comprising A₁, a saturated polyester resin, a poly(ether ester) elastomer, etc., is mixed with 99-1 pt.wt. modifier composition (B) prepared by combining a multistage graft polymer composition (B₁) based on a polyorganosiloxane with a graft copolymer composition (B₂) based on a diene rubber in a wt. ratio of 1-9:9-1.;COPYRIGHT: (C)1990,JPO