| 摘要 |
PURPOSE:To improve the antiabrasive property of a sliding surface, by heat- melting a super molecule polyethylene at the bottom of a groove to form a slidable coating film in anon-hair-planting type channel-formed glass run which is made of a polyolefin type elastomer. CONSTITUTION:A base material 1 is extrusion-formed by using a polyolefin type elastomer. At the bottom 1a of a groove where the end of a glass G is contacted, a slidable coating film 3 is heat-molten, which consists of, as the base material, a superhigh molecule polyethylene of the mean molecular weight about 1-5 million, gained by Ziegler's polymerization. And at a bending lip 1b, a slidable coating film 5 of a material such as a high density polyethylene is formed. In such a composition, the antiabrasive property can be improved.
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