Method to disperse nano-cellulose in organic polymer precursors

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United States of America Patent

PATENT NO 11186689
SERIAL NO

16538877

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Abstract

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This invention concerns a novel method to produce thermosets such as epoxies and polyurethanes comprising nano-cellulose. The method comprises contacting primarily water-bourne dispersed nano-cellulose with liquid thermoset precursors, specifically epoxy or amine in the case of epoxies, or glycols or similar in the case of polyurethanes. Nano-cellulose transfers to the organic phase, and water is removed at temperatures below 100° C. Thereafter the organic phase comprising nano-cellulose can be mixed with the reactive counterpart to yield nano-composites with improved properties. The products can be used for composite articles, coatings, adhesives, sealants, and other end-uses. Preferred embodiments are described in detail.

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Patent Owner(s)

Patent OwnerAddress
NORSKE SKOG SAUGBRUGS ASTISTEDALS GATE 9-11 HALDEN 1772

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Dietrichson, Stein Fredrikstad, NO 5 40
Karthäuser, Joachim Sundbyberg, SE 6 27
Nordeng, Mikael Oslo, NO 1 0

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