Abrasion resistant, curable hardcoating compositions and tinted articles made therefrom
US5827923A · kind A · utility
12Cited by
15References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 10, 1997 |
| Grant date | Oct 27, 1998 |
| Priority date | — |
| Expiry date | Jan 10, 2017 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31667
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
This invention provides a coating composition which utilizes a free radical initiator and an organic tintability additive which remains substantially unpolymerized even after the remainder of the coating composition is cured. Superior tintability and adhesion to polycarbonate makes this coating particularly suitable for making tinted opthalmic lenses.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.