Coated sheet material and method
US5603996A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 20, 1993 |
| Grant date | Feb 18, 1997 |
| Priority date | — |
| Expiry date | Sep 20, 2013 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31902
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A novel coated sheet material is made by: (a) coating a porous substrate sheet material with a barrier coating comprised of (i) a cross-linkable polymer resistant to penetration by water moister when cured, and (ii) a water-dispersible, film-forming polymer that is resistant to penetration by grease and oil when cured, said barrier coating composition forming a barrier layer on said substrate sheet material; and (b) coating said barrier layer with a release coating composition. The coated sheet material may be used to make containers, wrappers and/or receptacles for food and other substances, including ovenable and dual-ovenable embodiments thereof.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.