| 摘要 |
PURPOSE:A rubber-reinforced styrene polymer is added to an aromatic polyether resin to produce the titled composition showing good processability, high impact strength and high crack resistance. CONSTITUTION:20-80wt% of an aromatic polyether resin of the formula (R1, R2 are alkyl, aryl, halogen, H; n is polymerization degree) is melt-kneaded with 80- 20wt% of a rubber-reinforced styrene polymer, preferably polymer containing a small amount of volatile components such as styrene monomer or the like, at a higher temperature than the kneading temperature of a styrene polymer only, higher than 300 deg.C, with higher shear stress, preferably using a vent extruder evacuated at the vent to produce a resin composition containing less than 5,000ppm volatile components of less than 320mol weight, such as reamining styrene monomer. Further, the addition of 0.005-5wt% of thermal decomposition preventive and 0.1-5wt% of water effectively depresses the formation of styrene monomer caused by thermal decomposition of the styrene polymer.
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