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US 12,270,153 B2Granted
Starch-cellulose composite material
AssigneePratt Corrugated Holdings, Inc.
InventorsJohn Anagnostopoulos, Greg Sollie, Jamie Waltermire, Shifeng Chen
Life of this patent
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Abstract
A composite can include cellulose fiber; and foam binding the cellulose fiber. A method for manufacturing a composite can comprise mixing a plurality of ingredients to form a pre-foam mixture; foaming the pre-foam mixture to produce a foam; mixing the foam with cellulose fiber to form a composite material; and curing the composite material.
Claims17
A composite comprising:
- cellulose fiber;
- and
- a water-based foam binding the cellulose fiber, wherein the cellulose fiber defines a density of less than 1,450 grams per square meter (GSM), an average pore diameter is about 1-2 mm, and a maximum pore diameter within the water-based foam is about 3 mm.
A composite comprising:
- a cellulose fiber;
- and
- a foam defining a density of less than 1,450 grams per square meter (GSM), an average pore diameter between 1-2 mm, and comprising a maximum pore diameter of 3 mm, the foam binding the cellulose fiber.
Dependencies are inferred from the claim text.