Coated sheet material
US5981011A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 5, 1995 |
| Grant date | Nov 9, 1999 |
| Priority date | — |
| Expiry date | Jan 5, 2015 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31949
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A coated sheet material made by : (a) coating a porous substrate sheet material with a barrier coating composition comprising (i) a cross-linkable polymer resistant to penetration by water moisture, and (ii) a water-dispersible film-forming polymer that is resistant to penetration by grease and oil, said barrier coating composition forming a barrier layer on said substrate sheet material; and (b) coating said barrier layer with a release coating composition wherein the cross-linkable polymer and the water-dispersible film-forming polymer are different. The coated sheet material is useful in forming articles and food wrappers for use in conventional or microwave ovens.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.