US 12,279,615 B2
Wood preservative and method for producing same
Jun Zhang, Peachtree City, GA (US); Peter Tham, Morrow, GA (US); and John Horton, Peachtree City, GA (US)
Assigned to Koppers Performance Chemicals Inc., Pittsburgh, PA (US)
Filed by Koppers Performance Chemicals Inc., Pittsburgh, PA (US)
Filed on Nov. 30, 2023, as Appl. No. 18/524,067.
Application 16/216,486 is a division of application No. 15/840,877, filed on Dec. 13, 2017, abandoned.
Application 18/524,067 is a continuation of application No. 17/479,503, filed on Sep. 20, 2021, granted, now 11,882,833.
Application 17/479,503 is a continuation of application No. 16/216,486, filed on Dec. 11, 2018, granted, now 11,140,901, issued on Aug. 9, 2022.
Claims priority of provisional application 62/437,372, filed on Dec. 21, 2016.
Claims priority of provisional application 62/435,504, filed on Dec. 16, 2016.
Prior Publication US 2024/0099303 A1, Mar. 28, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. A01N 43/56 (2006.01); A01N 25/04 (2006.01); A01N 59/20 (2006.01); B27K 3/00 (2006.01); B27K 3/02 (2006.01); B27K 3/08 (2006.01); B27K 3/22 (2006.01); B27K 3/34 (2006.01); B27K 3/38 (2006.01); B27K 3/42 (2006.01); B27K 3/52 (2006.01); B27K 5/00 (2006.01); B27K 3/16 (2006.01); B27K 3/20 (2006.01); B27K 3/30 (2006.01)
CPC A01N 43/56 (2013.01) [A01N 25/04 (2013.01); A01N 59/20 (2013.01); B27K 3/005 (2013.01); B27K 3/007 (2013.01); B27K 3/0207 (2013.01); B27K 3/08 (2013.01); B27K 3/22 (2013.01); B27K 3/343 (2013.01); B27K 3/38 (2013.01); B27K 3/42 (2013.01); B27K 3/52 (2013.01); B27K 5/0055 (2013.01); B27K 3/163 (2013.01); B27K 3/20 (2013.01); B27K 3/30 (2013.01); B27K 2240/20 (2013.01)] 25 Claims
 
1. A wood preservative composition for making a wood or wood product resistant to fungal decay, the wood preservative composition comprising:
an aqueous carrier;
a copper component, wherein the copper component is micronized; and
penflufen,
in a copper:penflufen weight ratio in a range of 5:1 to 200:1,
wherein the wood preservative composition comprises less than 5% by weight of alkanolamines based on a total weight of the wood preservative composition.