| 摘要 |
PURPOSE:To obtain a waterproof and oilproof polyolefinic resin foamed molded object excellent in waterproofness and oilproofness and also excellent in the mutual weldability of prefoamed particles at least on its surface. CONSTITUTION:A waterproof and oilproof polyolefinic resin foamed molded object is composed of polyolefinic resin pre-foamed particles whose average wt. per 100 particles is 30-600mg and has no voids in its surface layer. |
