High gloss disposable pressware
First Claim
1. A disposable shaped paperboard food container with a bilayer finish press-formed in a heated die set from a paperboard blank,said paperboard blank being prepared from a paperboard substrate provided with a first finish coating layer consisting essentially of a styrene-butadiene resin composition and a second, top coating finish layer consisting essentially of an acrylic resin composition applied to said first finish coating layer wherein said first and second coatings contain up to about 2 lbs of mineral filler per 3,000 square foot ream and, wherein said food container exhibits a surface gloss of at least about 40 gloss units as measured by test method ASTM D523-89, 60 degree method.
4 Assignments
0 Petitions
Accused Products
Abstract
A high gloss, disposable pressed paperboard food container includes a glossy bilayer finish. The container is formed in a heated die set from a paperboard substrate provided with a first finish coating layer consisting essentially of a styrene-butadiene resin composition and a second, top coating finish layer consisting essentially of an acrylic resin composition applied to the first finish coating layer. The products of the invention typically exhibit a 60° gloss of greater than about 40 gloss units, as well as reduced moisture pickup and enhanced rigidity.
74 Citations
27 Claims
-
1. A disposable shaped paperboard food container with a bilayer finish press-formed in a heated die set from a paperboard blank,
said paperboard blank being prepared from a paperboard substrate provided with a first finish coating layer consisting essentially of a styrene-butadiene resin composition and a second, top coating finish layer consisting essentially of an acrylic resin composition applied to said first finish coating layer wherein said first and second coatings contain up to about 2 lbs of mineral filler per 3,000 square foot ream and, wherein said food container exhibits a surface gloss of at least about 40 gloss units as measured by test method ASTM D523-89, 60 degree method.
-
17. A coated paperboard for making a paperboard food container with a bilayer finish wherein said container exhibits a surface gloss of at least about 40 gloss units as measured by test method ASTM D523-89, 60 degree method, said coated paperhoard comprising:
-
a) a paperboard substrate sized with from about 4 pounds of starch per 3,000 square foot ream to about 15 pounds of starch per 3,000 square foot ream and provided with a clay coating;
b) a first finish coating layer consisting essentially of a styrene-butadiene resin composition applied to said clay coating; and
c) a second finish top coat layer consisting essentially of an acrylic resin composition applied to said first layer wherein said first and second finish coatings contain up to about 2 lbs of mineral filler per 3,000 square foot ream. - View Dependent Claims (18, 19, 20, 21, 22, 23, 24, 25, 27)
-
Specification