Soft top coated shaped polycarbonate article
US4550058A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 31, 1983 |
| Grant date | Oct 29, 1985 |
| Priority date | — |
| Expiry date | Oct 31, 2003 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31928
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
Soft coated shaped polycarbonate articles exhibiting improved resistance of the polycarbonate substrate to degradation by the plasticizers contained in the relatively soft top coat comprised of, in combination: PA1 (i) a shaped polycarbonate substrate; PA1 (ii) a protective intermediate layer disposed on said polycarbonate substrate comprised of at least one ply of a resinous material exhibiting plasticizer barrier properties, thermoformability, heat resistance, and compartibility with the underlying polycarbonate; and PA1 (iii) a relatively soft plasticized top coat comprised of at least one resinous material disposed on said intermediate layer. The substrate, intermediate layer, and top coat are all bonded together by means of suitable adhesives.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.