| 摘要 |
PURPOSE:To improve the balance among the compatibility, mechanical properties, and flowability by compounding an aq. metal hydroxide soln. into a compsn. comprising a specific graft copolymer and an arom. polyester resin. CONSTITUTION:5 to 80 pts.wt. rubber polymer [e.g. butadiene (co)polymer] having a glass transition temp. of 0 deg.C or lower is graft copolymerized with 95 to 20 pts.wt. monomer mixture comprising 20 to 90wt.% arom. vinyl monomer (e.g. styrene) (i), 80 to 10wt.% vinyl cyanide monomer (e.g. acrylonitrile) and/or alkyl ester of an unsatd. carboxylic acid (e.g. methyl methacrylate) (ii), and 0 to 40wt.% other vinyl monomer (iii) copolymerizable with the abovementioned monomers (i) and (ii), thus giving a graft copolymer. A resin compsn. comprising 1 to 99wt.% resulting graft copolymer and 99 to 1wt.% arom. polyester resin is compounded with a 1 to 45wt.% aq. soln. of a hydroxide of a metal of the group I or II of the second to sixth period of the periodic table is compounded in an amt. satisfying formulas I and II (wherein (x) is the number of moles of water in said aq. soln.; (y) is the number of moles of said metal hydroxide in said aq. soln.; and (m) is the number of moles of (ii) in said resin compsn). |
