Ultraviolet radiation stabilized coated polycarbonate article
US4410594A · kind A · utility
41Cited by
2References
46Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 10, 1981 |
| Grant date | Oct 18, 1983 |
| Priority date | — |
| Expiry date | Apr 10, 2001 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31663
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A coated ultraviolet radiation stabilized polycarbonate article having improved abrasion, mar, scratch, and chemical solvent resistance comprising a polycarbonate article with its surface layers impregnated with an ultraviolet radiation absorbing compound having at least one surface thereof coated with (i) an adhesion promoting primer layer comprised of a thermoset acrylic polymer; and (ii) a top coat disposed on said primer layer comprised of a colloidal silica filled thermoset organopolysiloxane.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.