发明名称 |
Articles including expanded polytetrafluoroethylene membranes with serpentine fibrils |
摘要 |
Articles including expanded fluoropolymer membranes having serpentine fibrils are provided. The fluoropolymer membranes exhibit high elongation while 5 substantially retaining the strength properties of the fluoropolymer membrane. The membrane may include a fluoropolymer and/or elastomer. Additionally, the article has an elongation in at least one direction of at least about 100% and a matrix tensile strength of at least about 50 MPa. The article may be formed by (1) expanding a dried, extruded fluoropolymer tape in at least one direction to 10 produce an expanded fluoropolymer membrane and (2) retracting the expanded fluoropolymer membrane in at least one direction of expansion by applying heat or by adding a solvent. The application of a tensile force at least partially straightens the serpentine fibrils, thereby elongating the article. The expanded fluoropolymer membrane may include a microstructure of substantially only 15 fibrils. The membranes may be imbibed with an elastomeric material to form a composite. 7398648 1 (GHMatters) P97280.AU.1 |
申请公布号 |
AU2016201878(A1) |
申请公布日期 |
2016.04.21 |
申请号 |
AU20160201878 |
申请日期 |
2016.03.24 |
申请人 |
W. L. GORE & ASSOCIATES, INC. |
发明人 |
WHITE, CHARLES F.;RADSPINNER, RACHEL |
分类号 |
B29C55/00;B01D67/00;C08J5/18;D04H1/4391 |
主分类号 |
B29C55/00 |
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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