Method for the treatment of wood with metal-lignin salts

Details Method for the treatment of wood with metal-lignin salts Method for the treatment of wood with metal-lignin salts

1992-01-24

1993-09-21

Owens, Terry J.

Coating processes

With post-treatment of coating or coating material

Heating or drying

427351, B05D 706

Patent

active

052467392

ABSTRACT:
A method for treatment of wood, whereby the wood is impregnated with a wood preservative composition consisting essentially of an aqueous solution of ammonium salt of lignin and ammonia complexes of certain metal cations such as Cu(NH.sub.3).sub.4.sup.++, Zn(NH.sub.3).sub.4.sup.++, and Hg(NH.sub.3).sub.2.sup.++. the lignin is selected from the group consisting of alkali lignin, organosolv lignin, partially desulfonated sulfite lignin, and modified alkali or organosolv lignin.

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