Coated sheet material
AssigneeA*Ware Technologies, L.C.
InventorsDerric T. Overcash, Ronald L. Elsenbaumer
Life of this patent
Estimating the term…
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.
Claims33
A coated sheet material comprised of:
- a porous substrate sheet material having at least two oppositely disposed surfaces;
- and
- a barrier coating on at least one surface of said substrate sheet material wherein said barrier coating is formed from a dispersion comprised of a mixture of:
- (i) a cross-linkable first polymer that is resistant to penetration by water moisture when cured, and (ii) a water-dispersible, film-forming second polymer that is resistant to penetration by grease and oil when cured, wherein said first and second polymers are different.
An article comprised of:
- a porous substrate material having at least two oppositely disposed surfaces;
- and
- a barrier coating on at least one surface of said substrate material wherein said barrier coating is formed from a dispersion comprised of a mixture of:
- (i) a cross-linkable first polymer that is resistant to penetration by water moisture when cured, and (ii) a water-dispersible, film-forming second polymer that is resistant to penetration by grease and oil when cured wherein said first and second polymers are different.
A coated sheet material comprised of:
- a porous substrate sheet material having at least two oppositely disposed surfaces;
- a barrier coating on at least one surface of said substrate sheet material wherein said barrier coating is formed from a dispersion comprised of a mixture of:
- (i) a cross-linkable first polymer that is resistant to penetration by water moisture when cured, and (ii) a water-dispersible, film-forming second polymer that is resistant to penetration by grease and oil when cured, wherein said first and said second polymers are different;
- and
- a release coating on said barrier coating.
An article comprised of:
- a porous substrate material having at least two oppositely disposed surfaces;
- a barrier coating on at least one surface of said substrate material wherein said barrier coating is formed from a dispersion comprised of a mixture of:
- (i) a cross-linkable first polymer that is resistant to penetration by water moisture when cured, and (ii) a water-dispersible, film-forming second polymer that is resistant to penetration by grease and oil when cured, wherein said first and second polymers are different;
- and
- a release coating on said barrier coating.
Dependencies are inferred from the claim text.