Cyclic olefin resin composition film
US9670329B2 · kind B2 · utility
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Key dates
| Filing date | Dec 4, 2014 |
| Grant date | Jun 6, 2017 |
| Priority date | — |
| Expiry date | Dec 4, 2034 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L2203/16
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Provided is a cyclic olefin resin composition film having a small in-plane retardation and high toughness. The cyclic olefin resin composition film contains a cyclic olefin resin and a styrene elastomer having a storage modulus of lower than 100 MPa at 0° C. to 100° C. The styrene elastomer is dispersed in the cyclic olefin resin in an amount of 5 to 35 wt %. With this configuration, it is possible to lower the in-plane retardation of the film while ensuring the high toughness of the film.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.