	US 12,082,583 B2
	Wood preservatives
Selvanathan Arumugam, Blue Bell, PA (US); David M Laganella, Swedesboro, NJ (US); and Kevin B. Vargo, Collegeville, PA (US)
Assigned to Nutrition & Biosciences USA 2, LLC, Rochester, NY (US); and MC (US) 3 LLC, Wilmington, DE (US)
Appl. No. 16/497,089
Filed by Nutrition & Biosciences USA 2, LLC, Rochester, NY (US); and MC (US) 3 LLC, Wilmington, DE (US)
PCT Filed Mar. 29, 2018, PCT No. PCT/US2018/025046 § 371(c)(1), (2) Date Sep. 24, 2019, PCT Pub. No. WO2018/183615, PCT Pub. Date Oct. 4, 2018.
Claims priority of provisional application 62/479,810, filed on Mar. 31, 2017.
Prior Publication US 2021/0112812 A1, Apr. 22, 2021
This patent is subject to a terminal disclaimer.
Int. Cl. A01N 43/80 (2006.01); C08G 18/75 (2006.01)

CPC A01N 43/80 (2013.01) [C08G 18/755 (2013.01)]

8 Claims

1. A non-aqueous composition for preserving wood comprising:

a) a polyurethane polymer comprising the reaction product of a polyol and an isocyanate in a non-aqueous solvent;

(b) an organic solvent; and

(c) at least one wood preservative selected from among halogenated isothiazolone biocides, halogenated carbamate fungicides and azole fungicides

wherein the organic solvent comprises diesel, and the polyol is selected from the group consisting of 100% poly-i-butylene oxide, 6 to 99.99% poly-i-butylene oxide+0.01 to 94% p-propylene oxide, and 83 to 99.99% poly-i-butylene oxide+0.01-17% p-tetrahydrofuran.