Patent ID: 6025420
Filing Date: 2000-02-15
Classification: C08L

Abstract:
A polymer blend composition comprising, in admixture,(a) a polycarbonate in an amount from about 50 to about 98.99 parts by weight;(b) a substantially linear ethylene polymer or a linear ethylene polymer in an amount from about 1 to about 49.99 parts by weight, which has:(i) a density of less than about 0.93 g/cm.sup.3,(ii) a molecular weight distribution, M.sub.w /M.sub.n, of less than about 3.0, and(iii) a Composition Distribution Branch Index of greater than about 50 percent; and(c) a compatibilizing graft copolymer comprising a copolymer of a monovinylidene aromatic monomer with an ethylenically unsaturated nitrile monomer grafted onto an olefinic polymer substrate component, said compatibilizing graft copolymer being contained in an amount from about 0.01 to about 3 parts by weight;said parts by weight being based on 100 weight parts components (a), (b) and (c).