Lignin derivative compound and use thereof

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United States of America Patent

PATENT NO 12116381
APP PUB NO 20200255465A1
SERIAL NO

16639924

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Abstract

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From the viewpoint of a decrease in environmental impact in recent years, an object of the present invention is to effectively utilize lignin as a circulative biomass resource having high effect of reducing environmental impact. Specifically, the object is to provide a lignin derivative that can improve the dispersibility of various substances to be dispersed regardless of uses of cements, dyes, oil field drilling mud, and the like. The present invention provides a lignin derivative compound that is a reaction product of a lignin sulfonic acid-based compound with an aromatic water-soluble compound, and a dispersant containing the same. The lignin derivative compound preferably has an anionic functional group and/or a polyalkylene oxide chain.

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Patent Owner(s)

Patent OwnerAddress
NIPPON PAPER INDUSTRIES CO LTD4-1 OJI 1-CHOME KITA-KU TOKYO 1140002 JAPAN

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Nakamura, Akihiko Tokyo, JP 131 1409
Nakamura, Takuma Tokyo, JP 73 371
Nishimori, Yoshito Tokyo, JP 4 0
Takahashi, Kanae Tokyo, JP 2 0
Tamura, Sumio Tokyo, JP 2 0

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