Method of forming a tintable abrasion-resistant coating on a substrate and article produced thereby
US4550059A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 4, 1983 |
| Grant date | Oct 29, 1985 |
| Priority date | — |
| Expiry date | Aug 4, 2003 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31507
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A tintable abrasion-resistant coating is formed on a substrate such as a lens or other optical article by applying a radiation-curable coating to the surface of the substrate and partially curing the applied coating by exposure to radiation so as to produce from about 20% to about 80% cross-linking in the coating. The exposure to radiation is terminated when the coating is partially cured to provide a coated article which is tintable but capable of being handled for shipping to a retail finisher or the like for tinting and then completion of the cure by exposure to radiation. Preferably, a radiation-curable coating comprising a triacrylate or tetracrylate monomer and a monomer containing an N-vinyl imido group is applied to a substrate comprising polycarbonate, polyallyldiglycolcarbonate, or acrylic polymer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.