Process for producing a double-layer film
US5474802A · kind A · utility
40Cited by
12References
9Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Jun 29, 1994 |
| Grant date | Dec 12, 1995 |
| Priority date | — |
| Expiry date | Jun 29, 2014 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB32B17/10908
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A process for producing a double-layer film on a flat substrate by reactive casting employing two kinds of reaction-curable resin raw material mixtures substantially free from a solvent, which comprises casting onto the substrate a first unreacted liquid raw material mixture for the first layer, then casting onto the first layer a second unreacted liquid raw material mixture for the second layer while the first raw material mixture still retains its fluidity, and thereafter curing by reaction the two layers simultaneously.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.