Plastic molded article for automobile use

Abstract

Abstract PURPOSE:To obtain a molded article such as radiator tank, etc. resistant to cracking caused by the contact with an antifreeze agent even by the contact of the surface with moisture and outer atmosphere and the repeated exposure to high temperature, by molding a composition prepared by compounding a specific modified olefin polymer to an olefin polymer and a polyamide. CONSTITUTION:100pts.(wt.) of a mixture of (A) 90-10pts. of an olefin polymer and (B) 10-90pts. of a polyamide is compounded with (C) 0.1-20pts. of a modi fied olefin polymer prepared by grafting an olefin polymer with 0.05-10pts. of a grafting monomer selected from unsaturated carboxylic acid or its deriva tive. The composition is preferably further compounded with glass fiber. The component A is preferably a propylene polymer. The component B is nylon 6 or nylon 66 having a relative viscosity of >=2.0 (in 98% sulfuric acid). The grafting monomer of the component C is maleic acid, etc.

Inventors

• 👤 Hideyuki Itoi
• 👤 糸井　秀行
• 👤 Shinro Katsura
• 👤 桂　真郎

Bibliographic Details