Abstract: The present invention relates to a thermoplastic resin composition comprising 20 to 60 parts by weight of a rubber-reinforced resin (A) and 80 to 40 parts by weight of an aromatic polycarbonate (B) having an average molecular weight of 16,000 to 30,000 ((A)+(B)=100 parts by weight), said rubber-reinforced resin (A) containing a grafted rubber-like polymer (A1) obtained by polymerizing at least one compound (b) selected from the group consisting of aromatic vinyl compounds, vinyl cyanide compounds, (meth)acrylic ester compounds, acid anhydride monomeric compounds and maleimide-based compounds in the presence of a rubber-like polymer (a) having a glass transition temperature of not more than −40° C.

Abstract: The present invention relates to a thermoplastic resin composition comprising 20 to 60 parts by weight of a rubber-reinforced resin (A) and 80 to 40 parts by weight of an aromatic polycarbonate (B) having an average molecular weight of 16,000 to 30,000 ((A)+(B)=100 parts by weight),

Abstract: A process for producing an olefin copolymer rubber containing 25 to 75% by weight of propylene, which comprises polymerizing ethylene and propylene, or ethylene, propylene and at least one nonconjugated diene, in solution in the presence of a catalyst, said catalyst being composed of (A) a Ti-containing solid component precipitated from a liquid product obtained by reacting a titanium tetrahalide with an organomagnesium compound in a halogenated hydrocarbon solvent in the presence of an ether represented by the general formula R.sup.1 OR.sup.2 wherein R.sup.1 and R.sup.2 are identical or different and each represents a hydrocarbon group having 2 to 12 carbon atoms, and (B) an organoaluminum compound.