CONTAINER AND METHOD OF MITIGATING METAL-CONTACT CONTAMINATION OF POLYSILICON
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United States of America Patent
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May 15, 2014
app pub date -
Nov 8, 2013
filing date -
Nov 9, 2012
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The present disclosure concerns reduction or mitigation of metal-contamination of polycrystalline silicon when held or stored in containers at least partially constructed of metal and/or having polysilicon contact surfaces at least partially of metal. In particular, the disclosure relates to a method of mitigating metal contamination of polycrystalline silicon from contact with a metal surface of a container by providing the surface with a protective layer comprising a microcellular elastomeric polyurethane.
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