The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 01, 2003
Filed:
May. 25, 2000
Applicant:
Inventors:
Assignee:
SDS Biotech K.K., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A01N 5/900 ; A01N 5/906 ; A01N 5/908 ; A01N 5/916 ; A01N 5/920 ; A01N 6/500 ; B27K 3/52 ;
U.S. Cl.
CPC ...
A01N 5/900 ; A01N 5/906 ; A01N 5/908 ; A01N 5/916 ; A01N 5/920 ; A01N 6/500 ; B27K 3/52 ;
Abstract
A method for treating wood, characterized by impregnating wood with a metal-containing treating agent containing lignin and/or lignin derivatives and a metal, a metal compound, and/or a metal ion and oxidizing and/or macromolecularizing of the lignin and/or lignin derivatives in the wood to fix the metal component in the wood, and wood and woody materials obtained by the treating method. According to the method of the present invention, while effectively utilizing lignins, lignosulfonic acids, or lignosulfonic acid salts, leaching of the metal component can be suppressed to a low level to thereby retain the effects due to the incorporation of the metal components for a prolonged period.