Method for making thermoplastic aliphatic urethane/urea elastomers and molding compositions
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United States of America Patent
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Jun 16, 2020
Grant Date -
Aug 31, 2017
app pub date -
May 8, 2017
filing date -
Aug 10, 2007
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Abstract
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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