Apparatus for the manufacture of plastics film by casting on a floating glass ribbon
US4047917A · kind A · utility
3Cited by
8References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 20, 1976 |
| Grant date | Sep 13, 1977 |
| Priority date | — |
| Expiry date | Sep 20, 1996 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29C48/07
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
An apparatus for making films, sheets or plates of a transparent plastics material of high optical quality comprises means for depositing a solution, molten mass or reaction mixture which yields the solid plastics on drying or hardening on a moving glass ribbon having a smooth upper surface. The ribbon may be made by the float glass process. The plurality of plastics layer may be deposited one on another.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.