Annealed porous polyolefin material
US10640898B2 · kind B2 · utility
1Cited by
168References
26Claims
0Family size
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Key dates
| Filing date | Nov 17, 2015 |
| Grant date | May 5, 2020 |
| Priority date | — |
| Expiry date | May 27, 2036 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD04H3/007
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A polyolefin material that comprises a thermoplastic composition that is annealed and thereafter drawn in a solid state is provided. The composition contains a continuous phase that includes a polyolefin matrix polymer and a nanoinclusion additive dispersed within the continuous phase in the form of discrete domains. A porous network is defined within the thermoplastic composition that includes a plurality of nanopores, wherein the thermoplastic composition has a glass transition temperature of from about −20° C. to about 50° C. as determined in accordance with ASTM E1640-13.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.