US 12,338,382 B2
Surfactants having non-conventional hydrophobes
Upali Weerasooriya, Austin, TX (US); Peter Radford, Lenexa, KS (US); Kevin Sikkema, Overland Park, KS (US); John Boorem, Kansas City, KS (US); Aaron Boorem, Leavenworth, KS (US); Kurt Cheshire, Shawnee, KS (US); Kishore K. Mohanty, Austin, TX (US); Krishna Panthi, Cedar Park, TX (US); Himanshu Sharma, Austin, TX (US); and Pinaki Ghosh, Austin, TX (US)
Assigned to Harcros Chemicals, Inc., Kansas City, MO (US)
Appl. No. 16/500,250
Filed by HARCROS CHEMICALS, INC., Kansas City, KS (US); and BOARD OF REGENTS, THE UNIVERSITY OF TEXAS SYSTEM, Austin, TX (US)
PCT Filed Apr. 4, 2018, PCT No. PCT/US2018/026073
§ 371(c)(1), (2) Date Oct. 2, 2019,
PCT Pub. No. WO2018/187463, PCT Pub. Date Oct. 11, 2018.
Claims priority of provisional application 62/481,393, filed on Apr. 4, 2017.
Prior Publication US 2021/0039060 A1, Feb. 11, 2021
Int. Cl. C09K 23/00 (2022.01); C07C 59/125 (2006.01); C07C 217/28 (2006.01); C07C 305/10 (2006.01); C09K 8/584 (2006.01); C09K 23/16 (2022.01); C09K 23/42 (2022.01); C11D 1/06 (2006.01); C11D 1/29 (2006.01); C11D 1/722 (2006.01); C11D 11/00 (2006.01); E21B 43/16 (2006.01)
CPC C09K 23/00 (2022.01) [C07C 59/125 (2013.01); C07C 217/28 (2013.01); C07C 305/10 (2013.01); C09K 8/584 (2013.01); C09K 23/16 (2022.01); C11D 1/06 (2013.01); C11D 1/29 (2013.01); C11D 1/722 (2013.01); E21B 43/16 (2013.01); C11D 2111/20 (2024.01)] 18 Claims
OG exemplary drawing
 
1. A compound having the formula:
R1—O—(POx-EOy) —Z
wherein R1 is a branched C3 to C7 alkyl;
wherein x is 15-100;
wherein y is 10-250;
wherein (x+y)≥25; and
wherein Z is carboxylate.