Coated sheet method
US6193831A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 2, 1998 |
| Grant date | Feb 27, 2001 |
| Priority date | — |
| Expiry date | Apr 2, 2018 |
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. The coated sheet material is useful in forming articles and food wrappers for use in conventional or microwave ovens. The invention includes methods of making articles from the coated sheet materials.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.