Coated polycarbonate articles
US4929506A · kind A · utility
16Cited by
6References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 31, 1987 |
| Grant date | May 29, 1990 |
| Priority date | — |
| Expiry date | Dec 31, 2007 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31935
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
Coated polycarbonate articles, such as sheet and film, are coated with a hard, abrasion and chemical resistant coating which is the photoreaction product of an acrylated urethane oligomer, a difunctional acrylate monomer and preferably also a monofunctional olefinic monomer. These coated articles may be thermoformed or flexed without cracking or delamination of the protective coating. A specific embodiment of the invention is a coated flexible siloxane-polycarbonate block copolymer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.