| 摘要 |
PURPOSE:To obtain a resin composition having extremely improved heat resistance and mechanical strength in addition to the properties of polyphenylene sulfide, by mixing a polyphenylene sulfide with a specific amount of specific polyether imide resin. CONSTITUTION:(A) 100 pts.wt. polyphenylene sulfide consisting of the repeating unit expressed by formula I is blended with (B) 1-100 pts.wt. polyether imide resin consisting of the repeating unit expressed by formula II (R is tetrafunctional group selected from >=2C aliphatic group, alicyclic group and monocyclic aromatic group) obtained by dehydration and cyclization of polyamic acid prepared by reaction of 4,4'-bis[3-(4-aminophenoxy) benzoyl] diphenylether and tetracarboxylic acid dianhydride. For instance, powder of A is dry-blended with powder of B and meltblended by twin-screw extruder, etc. |
