Hardcoat film and antireflection film
US6489015B1 · kind B1 · utility
57Cited by
10References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 15, 1999 |
| Grant date | Dec 3, 2002 |
| Priority date | — |
| Expiry date | Nov 15, 2019 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/258
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A hardcoat film is provided which can improve surface hardness and, at the same time, can prevent the hardcoat film per se from being damaged by stress concentration and is less likely to be scratched. The hardcoat film comprises: a transparent substrate; and a multi-layer hardcoat provided on at least one side of the transparent substrate, the multi-layer hardcoat layer comprising two or more hardcoats, the modulus of elasticity &sgr;m of a hardcoat provided closest to the transparent substrate being higher than the modulus of elasticity &sgr;s of a hardcoat provided as a surface layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.