| 摘要 |
PURPOSE:To obtain a packing material for sealing, free of bleeding to the surface of a molded article and imparting durable sealing effect to the article, by compounding an acrylic ester copolymer rubber with a fatty acid ester oil. CONSTITUTION:The objective material can be produced by compounding (A) 100pts.(wt.) of an acrylic acid ester copolymer rubber with (B) preferably >=5pts., especially 10-30pts. of a fatty acid ester oil preferably consisting of a fatty acid ester of trimethylolpropane. |
