US 11,965,091 B2
Biocide free associative thickener
Deborah D. Graves, Blue Bell, PA (US); Jessica R. Levin, Philadelphia, PA (US); John J. Rabasco, Allentown, PA (US); Wenqin Wang, Phoenixville, PA (US); and Adrian R. Ward, Oxford, PA (US)
Assigned to Rohm and Haas Company, Collegeville, PA (US)
Filed by Rohm and Haas Company, Collegeville, PA (US)
Filed on Jul. 9, 2020, as Appl. No. 16/924,391.
Claims priority of provisional application 62/875,157, filed on Jul. 17, 2019.
Prior Publication US 2021/0017380 A1, Jan. 21, 2021
Int. Cl. C08L 71/02 (2006.01); C08G 18/08 (2006.01); C08G 18/28 (2006.01); C08G 65/325 (2006.01); C08G 65/327 (2006.01); C08K 5/521 (2006.01); C08L 75/08 (2006.01); C08L 75/12 (2006.01); C09D 7/43 (2018.01)
CPC C08L 71/02 (2013.01) [C08G 18/0814 (2013.01); C08G 18/2875 (2013.01); C08G 65/3255 (2013.01); C08G 65/327 (2013.01); C08K 5/521 (2013.01); C08L 75/08 (2013.01); C08L 75/12 (2013.01); C09D 7/43 (2018.01)] 4 Claims
 
1. A composition comprising an aqueous solution of a) a hydrophobically modified ethylene oxide urethane polymer comprising a hydrophobic portion functionalized with a protonated secondary or protonated tertiary amine or a quaternary ammonium salt and b) phosphoric acid or a salt thereof, wherein the composition has a pH in the range of from 2.0 to 2.8.