Composite products of paper and cellulose nanofibrils and process of making
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United States of America Patent
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Dec 29, 2020
Grant Date -
Mar 16, 2017
app pub date -
Sep 8, 2016
filing date -
Sep 10, 2015
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Abstract
Strong, light-weight composite laminates are made by impregnating layers of paper with a cellulose nanofiber (CNF) slurry, laying the coated papers up in a plurality of layers or stack, and subjecting the stack to pressure and heat for a period of time sufficient to cause the CNF to impregnate, reinforce, and bond the paper layers into a composite. The resulting composite has impressive mechanical strength and exhibits a substantially homogeneous composition throughout its depth. The composite should have good strength to weight properties, and be recyclable or compostable.
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