| 摘要 |
PURPOSE:A resin composition having improved heat resistance and flame retardance without damaging characteristic physical properties of ABS resin, especially impact resistance, comprising a modified ABS resin and a specific phosphorus compound. CONSTITUTION:100pts.wt. modified ABS resin comprising (A) 97-75wt% resin component consisting of (i) 50-87wt% mixed monomer of vinyl aromatic monomer (preferably styrene) and acrylonitrile, (ii) 8-35wt% (meth)acrylic acid ester of halogen-containing phenolic derivative shown by formula I (R1 is H or CH$3; R2 is 1-4C alkyl or chloro; m is 2-5; n and l are 0-3 and l+m+n=5) and (iii) 5-30wt% mixed monomer of maleic anhydride and n- phenyl-maleimide and (B) 3-25wt% rubber component (preferably butadiene rubber) is blended with (C) 0.5-10pts.wt. phosphorus compound shown by formula II or formula III (R3 is H, 1-18C alkyl, alkylene, etc.; R4 and R5 are 1-18C alkyl, alkylene, etc.), having >=240 deg.C/760mmHg boiling point.
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