Preservative composition for wood based on modified lignin

Number of patents in Portfolio can not be more than 2000

United States of America

PATENT NO 12219957
APP PUB NO 20210251222A1
SERIAL NO

17253318

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Abstract

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A method for preparing a wood preservative composition, includes modifying lignin with Na2B4O7 or NaNO3 and then with a chromium (II) salt, copper (II), cadmium (II) or zinc (II), for example, metal nitrates (Cr(NO3)2, Cu(NO3)2, Cd(NO3)2, Zn(NO3)2); to the preservative obtainable by this method; and to a method for preserving wood; and to the preserved wood. The preservative prevents degradation by xylophagous and fungal agents, and also improves some properties of the wood, and the hygroscopicity and fire resistance.

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Patent Owner(s)

  • UNIVERSIDAD DEL PAÍS VASCO / EUSKAL HERRIKO UNIBERTSITATEA

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Bihalva, Soares Dos Santos Patricia Altamira/PA, BR 1 0
Gatto, Darci Alberto Centro Brazil, BR 1 0
Labidi, Bouchrika Jalel Leioa, ES 2 0

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