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:
Nov. 25, 2003
Filed:
Feb. 27, 2002
Applicant:
Inventors:
Manfred Köhler, late of Freiburg, DE;
Clemens Auschra, Freiburg, DE;
Glen Thomas Cunkle, Stamford, CT (US);
Peter Nesvadba, Marly, CH;
Raymond Seltzer, New City, NY (US);
Assignee:
Ciba Specialty Chemicals Corporation, Tarrytown, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61K 3/1445 ; A61K 3/113 ; A01N 3/324 ; A01N 3/302 ;
U.S. Cl.
CPC ...
A61K 3/1445 ; A61K 3/113 ; A01N 3/324 ; A01N 3/302 ;
Abstract
The invention relates to a method of protecting wood against light-induced degradation by treatment with an impregnation which penetrates the surface of the wood comprising a) water without an organic solvent and b) a selected sterically hindered amine N-oxyl or N-hydroxyl. A further subject is the use of a sterically hindered amine N-oxyl or N-hydroxyl for the stabilization of wood.