Microporous film
US8669002B2 · kind B2 · utility
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11References
4Claims
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Key dates
| Filing date | Jun 25, 2012 |
| Grant date | Mar 11, 2014 |
| Priority date | — |
| Expiry date | Jun 25, 2032 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08J2323/12
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
To provide a thermoplastic resin microporous film being difficult in longitudinal tearing and excellent in tear resistance; a microporous film comprising a thermoplastic resin, wherein a melt flow rate of the thermoplastic resin in the microporous film is in the range of 0.1 to 2.0 g/10 min, tensile strength in a cross-machine direction is in the range of 5 to 10 MPa and tensile elongation in the cross-machine direction is 300% or more.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.