发明名称 |
ARTICLES PRODUCED FROM VDF-CO-(TFE OR TRFE) POLYMERS |
摘要 |
VDF-co-(TFE or TrFE) polymers having a molecular weight of at least about 1,000,000 g/mol and a melt temperature less than about 240°C. The VDF copolymer contains at least about 50 mo!% VDF monomer and may include an amount of at least one other monomer. The VDF copolymer may be used to form a membrane that has a node and fibril structure. The membrane has a percent porosity of at least 25%. A VDF-co-(TFE or TrFE) polymer membrane may be formed by lubricating the VDF copolymer, subjecting the lubricated polymer to pressure at a temperature below the melting point of the VDF copolymer to form a preform material, and expanding the preform material at a temperature below the melting temperature of the VDF copolymer. Dense VDF copolymer articles, filled VDF copolymer membranes, and VDF copolymer fibers are also provided. |
申请公布号 |
WO2016018969(A1) |
申请公布日期 |
2016.02.04 |
申请号 |
WO2015US42565 |
申请日期 |
2015.07.29 |
申请人 |
W.L. GORE & ASSOCIATES, INC. |
发明人 |
SBRIGLIA, GUY, A.;SHAFER, GREGORY, J. |
分类号 |
B01D71/32;B01D71/34;B29C43/24;B29C55/00;H01L41/193 |
主分类号 |
B01D71/32 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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