METHODS FOR MAKING THERMOPLASTIC ALIPHATIC URETHANE/UREA ELASTOMERS AND MOLDING COMPOSITIONS |
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| 申请号 | US15588763 | 申请日 | 2017-05-08 | 公开(公告)号 | US20170247540A1 | 公开(公告)日 | 2017-08-31 |
| 申请人 | Covestro LLC; | 发明人 | William M. Humphrey; Paul Drago; Terry L. Anderson; | ||||
| 摘要 | Methods for making compositions for making thermoplastic aliphatic urethane/urea elastomers, which are in turn used to make molding compositions used in forming molded articles, particularly, shells for automotive applications. The molding compositions comprise an aliphatic thermoplastic urethane/urea elastomer and a polyolefin-based modifier. These compositions may be used to form a powder, pellets, microspheres or minibeads which may then be cast to form air bag door and instrument panel cover skins which may meet automotive deployment and weathering requirements. | ||||||
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| 说明书全文 | |||||||
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