Title:
VINYL CHLORIDE RESIN COMPOSITION
Document Type and Number:
Japanese Patent JPH02265945
Kind Code:
A
Abstract:
PURPOSE:To obtain a vinyl chloride resin composition excellent in both heat resistance and impact resistance as well as good in processability by blending a vinyl chloride resin with a rubber-modified thermoplastic resin prepared by graft-polymerizing a specified monomer mixture in the presence of a rubber component in two stages. CONSTITUTION:100 pts.wt. vinyl chloride resin (A) (densirably of a degree of polymerization of about 600-2500) is blended with 5-100 pts.wt. desirably 7-90 pts.wt. rubber- modified thermoplastic resin (B) to obtain a vinyl chloride resin composition useful for automobile components, household electrical appliances, building materials, etc. The rubber-modified thermoplastic resin (B) can be obtained by graft-polymerizing 100 pts.wt. monomer mixture comprising 0.5-10wt.% unsaturated dicarboxylic acid anhydride, 5-35wt.% maleimide compound, 0-25wt.% alkyl (meth)acrylate, 3-30wt.% vinyl cyanide monomer and 45-91.5wt.% aromatic vinyl monomer in such a way that in the presence of a rubber component of 4 to 40 parts, the unsaturated dicarboxylic acid anhydride is copolymerized with the other monomers except the maleimide compound in stage 1 before the phase inversion, and the maleimide compound is copolymerized with other monomers except the unsaturated dicarboxylic acid anhydride in stage 2 after the phase inversion.
Inventors:
MAKINO YOSHIO
IKEDA HIROSHI
MATSUKAWA YASUYOSHI
IKEDA HIROSHI
MATSUKAWA YASUYOSHI
Application Number:
JP8830989A
Publication Date:
October 30, 1990
Filing Date:
April 06, 1989
Export Citation:
Assignee:
NIPPON OILS & FATS CO LTD
International Classes:
C08L27/06; C08F279/00; C08L51/04; (IPC1-7): C08L27/06; C08L51/04
Attorney, Agent or Firm:
Kunio Araimoto
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