Method for coating a continuous train of synthetic resin with a scratch resistant coating
US4921669A · kind A · utility
21Cited by
10References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 26, 1988 |
| Grant date | May 1, 1990 |
| Priority date | — |
| Expiry date | Oct 26, 2008 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29K2105/0002
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A scratch resistant coating is applied to one or both surfaces of an extruded thermoplastic synthetic resin web by passing the web through a polishing roll stack wherein at least one of the rolls has thereon a film of a material forming such a scratch resistant coating, the coating being in this way transferred from the roll to the surface of the web.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.