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US 12,060,682 B2Granted
Laminated structure and method of its production
AssigneeCelwise AB
InventorDavid Pierce
Life of this patent
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Abstract
The present disclosure provides a laminated biodegradable product, comprising a first functional layer in the form of a three-dimensional molded pulp structure, a functional second layer of a cellulose based material, and an overlap region, in which the first layer and the second layer overlap each other and are connected to each other.
Claims20
A laminated biodegradable product, comprising:
- a first functional layer in the form of a three-dimensional molded pulp structure,
- a second functional layer of a cellulose film selected from the group consisting of an uncoated cellulose film, a partially coated cellulose film, and a coated cellulose film from which a coating layer has been partially removed, and
- an overlap region, in which the first functional layer and the second functional layer overlap each other at an uncoated portion of the cellulose film;
- wherein the first functional layer and second functional layer are connected to each other by adhesion achieved based on a hydrogen bond or fiber bonding.
1 more element
A method of producing a laminated biodegradable product, comprising:
- providing a first three dimensionally molded functional pulp layer,
- providing a second functional layer of a cellulose film selected from the group consisting of an uncoated cellulose film, a partially coated cellulose film, and a coated cellulose film from which a coating layer has been partially removed,
- arranging the first functional layer and second functional layer so as to at least partially overlap, allowing an uncoated portion of the cellulose film to overlap and contact a wet portion of the pulp material, and
- connecting the first functional layer and second functional layer to each other by removing water from the product during a forming process such that the cellulose film and the pulp material bond to each other by adhesion achieved based on a hydrogen bond or fiber bonding.
1 more element
Dependencies are inferred from the claim text.