Optical film having excellent adhesive strength and durability, and polarizing film comprising same
US11668859B2 · kind B2 · utility
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5Claims
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Key dates
| Filing date | Aug 17, 2017 |
| Grant date | Jun 6, 2023 |
| Priority date | — |
| Expiry date | Jan 26, 2038 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08J2475/12
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
The present specification relates to an optical film including a transparent film, and a coating layer on at least one surface of the transparent film, wherein the coating layer includes a polyester-based resin and a polyurethane-based resin, and is formed using a composition having a minimum film-forming temperature difference of 40° C. to 110° C. between the polyester-based resin and the polyurethane-based resin, and a polarizing plate including the same.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.