Pressure sensitive adhesive optical film and image viewing display
US7160611B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 14, 2003 |
| Grant date | Jan 9, 2007 |
| Priority date | — |
| Expiry date | Aug 17, 2023 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/2891
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A pressure sensitive adhesive optical film with a pressure sensitive adhesive layer laminated on at least one surface of an optical film, wherein the pressure sensitive adhesive layer has a value of no more than 5 N/25 mm for a P0 which is initial 90° peel strength at 23° C. and by a peeling speed of 300 mm/minute after an autoclave processing under a condition of 50° C.×5 atm×15 minutes, and a ratio (P1/P0) of a P1 to a P0 is no less than 2, which P1 is 90° peel strength after heating by a peeling speed of 300 mm/minute and at 23° C. after the pressure sensitive adhesive layer is given the above-mentioned autoclave processing and is furthermore given a heat-treatment at 80° C. for 2 hours.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.