US 12,391,867 B2
Olefin sulfonates
Andrew M. Thomas, El Sobrante, CA (US); Curtis B. Campbell, Hercules, CA (US); Gayani W. Pinnawala, Katy, TX (US); Varadarajan Dwarakanath, Houston, TX (US); Andrew M. Davidson, San Ramon, CA (US); and Ping Wang, Fremont, CA (US)
Assigned to CHEVRON ORONITE COMPANY LLC, San Ramon, CA (US); and CHEVRON U.S.A. INC., San Ramon, CA (US)
Appl. No. 17/771,984
Filed by CHEVRON ORONITE COMPANY LLC, San Ramon, CA (US); and CHEVRON U.S.A. INC., San Ramon, CA (US)
PCT Filed Oct. 30, 2020, PCT No. PCT/US2020/058260
§ 371(c)(1), (2) Date Apr. 26, 2022,
PCT Pub. No. WO2021/087293, PCT Pub. Date May 6, 2021.
Claims priority of provisional application 62/929,025, filed on Oct. 31, 2019.
Prior Publication US 2022/0363979 A1, Nov. 17, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. C09K 8/60 (2006.01); C09K 8/584 (2006.01); C09K 8/70 (2006.01); C09K 23/02 (2022.01)
CPC C09K 8/604 (2013.01) [C09K 8/584 (2013.01); C09K 8/703 (2013.01); C09K 23/02 (2022.01)] 11 Claims
OG exemplary drawing
 
1. A surfactant composition comprising: an olefin sulfonate, wherein the olefin sulfonate is a propylene oligomer comprising one or more sulfonate groups and wherein the propylene oligomer has an average total branching of about 3 to about 15 per molecule.
 
11. A concentrated surfactant composition comprising:
an olefin sulfonate, wherein the olefin sulfonate is a propylene oligomer comprising one or more sulfonate groups, the propylene oligomer having an average total branching of about 3 to about 15, and wherein the olefin sulfonate is present in about 10 wt % to about 95 wt %, based on the total weight of the concentrated surfactant composition.