Process for producing a multi-layer film
US5560959A · kind A · utility
Assignees
Inventors
Key dates
| Filing date | Dec 4, 1995 |
| Grant date | Oct 1, 1996 |
| Priority date | — |
| Expiry date | Dec 4, 2015 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB32B2375/00
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A process for producing a multi-layer film having a plurality of synthetic resin layers laminated on a releasable flat substrate by casting, which comprises firstly forming on the substrate a synthetic resin layer having adhesive or sticking properties, and then casting and curing on the synthetic resin layer having adhesive or sticking properties at least one kind of reaction-curable resin raw material mixture substantially free from a solvent to form at least one cured synthetic resin layer, so that the uppermost layer is composed of a cured synthetic resin superior in surface properties to its adjacent layer. Further, surface defects transferred from the substrate to the adhesive layer are substantially eliminated by a subsequent lamination step.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.