| 摘要 |
<p>PURPOSE:To excellently make adhere moldings by high-frequency welding of the moldings made of decomposed product of organic peroxide of propylene block copolymer. CONSTITUTION:A block copolymer contains 0.01-5% of polybutene, 1-70% of polypropylene, and 25-98,99% of propylene-ethylene random copolymer. Organic peroxide such as ketone peroxide, etc., is melted and kneaded with the copolymer, the copolymer is decomposed with the organic peroxide to a decomposed product. The moldings of the copolymer are high-frequency welded excellently, so that the peeling strength of the moldings is improved.</p> |
