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:
Jul. 27, 2021
Filed:
Aug. 14, 2018
Applicant:
Koppers Performance Chemicals Inc., Pittsburgh, PA (US);
Inventors:
Md Sayful Islam, Griffin, GA (US);
Jun Zhang, Peachtree City, GA (US);
Assignee:
KOPPERS PERFORMANCE CHEMICALS INC., Pittsburgh, PA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B27K 5/00 (2006.01); B27K 5/02 (2006.01); B27K 3/00 (2006.01); C09D 15/00 (2006.01); C09C 1/00 (2006.01); B27K 3/22 (2006.01); B27K 3/52 (2006.01); B27K 3/26 (2006.01); B27K 3/02 (2006.01); B27K 3/08 (2006.01); B27K 3/34 (2006.01);
U.S. Cl.
CPC ...
B27K 5/02 (2013.01); B27K 3/005 (2013.01); B27K 3/007 (2013.01); B27K 3/0278 (2013.01); B27K 3/08 (2013.01); B27K 3/22 (2013.01); B27K 3/26 (2013.01); B27K 3/343 (2013.01); B27K 3/52 (2013.01); B27K 5/00 (2013.01); C09C 1/0084 (2013.01); C09D 15/00 (2013.01); B27K 2240/90 (2013.01);
Abstract
Disclosed herein are compositions and methods for treating wood to give it a desirable color that is durable over time, while at the same time rendering the wood resistant to fungal decay and insect attack. The wood may be pressure treated in a two-step process whereby the wood is first treated with a wood preservation composition, and then treated with a composition comprising pigments, or vice versa. Alternatively, the wood may be simultaneously treated with a composition comprising a wood preservative and a composition comprising pigments.