Abstract: A method of making a molded article by injecting into a mold filled with reinforcing material a resin composition including (a) 40 to 80% by weight of a resin including an oligomer having a number average molecular weight of 900 to 3,000 in terms of polystyrene equivalent obtained by gel permeation chromatography and having two or more terminal (meth)acrylate groups and an unsaturated polyester, and (b) 20 to 60% by weight of methyl (meth)acrylate monomer.

Abstract: Disclosed is a thermosetting resin composition which includes(a) an unsaturated polyester,(b) a polymer having a (meth)acrylate group only at one or both terminals of its main chain,(c) a poly(meth)acrylate oligomer,(d) a styrene monomer, and(e) a methyl methacrylate monomer.Also, a method of molding the resin is disclosed, which includes dividing the thermosetting resin composition into two parts, adding a curing agent to one of the two parts and a curing accelerator to another to form two partial compositions, introducing the two partial compositions into a mold, and allowing the two partial compositions to mix with each other and cure.

Abstract: A resin composition comprising(a) 40 to 80% by weight of a resin comprisingan oligomer having a number average molecular weight of 900 to 3,000 in terms of polystyrene equivalent obtained by gel permeation chromatography and having two or more terminal (meth)acrylate groups andan unsaturated polyester, and(b) 20 to 60% by weight of methyl (meth)acrylate monomer.

Abstract: A process for producing a vinyl chloride polymer, which comprises dissolving a thermoplastic polyurethane soluble in a vinyl chloride monomer in the vinyl chloride monomer and polymerizing the vinyl chloride monomer in the presence of a radical initiator.

Abstract: A thermoplastic polyurethan resin obtained by reacting (1) a polyol component with (2) an organic diisocyanate in a mole ratio, (1)/(2), of 0.8-1.3:0.5-1.2 in the presence, if desired, of a catalyst, said polyol component (1) comprising(A) a linear polyester polyol and/or polyether polyol having hydroxyl groups at both ends and/or (B) a diol free from a tertiary hydroxyl group, and(C) a low-molecular-weight polyol having at least one tertiary hydroxyl group (C-1), and/or a polyester polyol and/or polyether polyol having a molecular weight of 500 to 6,000 and containing hydroxyl groups at both ends and at least one tertiary hydroxyl group in the molecular chain (C-2) prepared from said low-molecular-weight polyol (C-1), the proportions of (A), (B) and (C) in said polyol component (1) being such that the ratio of (C) to the sum of (A), (B) and (C) is from 0.05 to 1.