Adhesive film for polarizing plate, polarizing plate including the same and optical display including the same
US10071538B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 28, 2016 |
| Grant date | Sep 11, 2018 |
| Priority date | — |
| Expiry date | Jan 31, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F2202/28
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
An adhesive film for polarizing plates, a polarizing plate including the same, and an optical display including the same are provided. An adhesive film for polarizing plates is formed of an adhesive composition for polarizing plates, which includes a non-carboxylic acid (meth)acrylic copolymer, an isocyanate curing agent, and an epoxy curing agent, wherein the adhesive film has a modulus at 85° C. of about 0.1 MPa to about 0.8 MPa and a modulus ratio of about 3 or less, as calculated by the equation, Modulus ratio=G′(25° C.)/G′(85° C.), where G′(25° C.) is modulus (unit: MPa) at 25° C. of an adhesive film and G′(85° C.) is modulus (unit: MPa) at 85° C. of the adhesive film.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.