THERMOPLASTIC COMPOSITION WITH LOW LIGHT-REFLECTING POWER AND HIGH IMPACT STRENGTH AT LOW TEMPERATURE Russian patent published in 2012 - IPC C08L69/00 C08L55/02 C08L33/10 

FIELD: chemistry.

SUBSTANCE: composition contains (A) a bisphenol-based homopolycarbonate in amount of 10-90% of the weight of the composition (weight parts), B) 10-90 pt.wt first graft (co)polymer containing a graft copolymerisation base selected from a group consisting of polyurethane, ethylene-vinyl acetate, silicone, ethylene-propylene-diene rubber, ethylene-propylene rubber, acrylate rubber, diene rubber and polychloroprene. When the first graft copolymer contains 3-50% rubber component, and when the graft phase contains 49-96% polymerised monovinyl diene aromatic monomer and 1-48% monoethylene unsaturated polar monomer, wherein the percentage relates to the weight of the first graft (co)polymer. The composition also contains 1-20 pts.wt linear polymer (C) with glycidyl ester functional groups, containing repeating units based on one or more glycidyl ester monomers. The composition contains 1-20 pts.wt second graft (co)polymer (D) containing a nucleus and a shell. The molecular structure of the nucleus includes an all-permeating mesh structure made from poly(meth)alkyl acrylate. The shell is made by polymerising methyl methacrylate.

EFFECT: low light-reflecting power and high impact strength at low temperatures.

17 cl, 2 tbl