US 12,077,722 B2
Water based semi-synthetic metalworking fluid composition
Chao Zhao, Shanghai (CN); and Xue Chen, Manvel, TX (US)
Assigned to Dow Global Technologies LLC, Midland, MI (US)
Appl. No. 18/252,450
Filed by Dow Global Technologies LLC, Midland, MI (US)
PCT Filed Aug. 24, 2021, PCT No. PCT/CN2021/114210
§ 371(c)(1), (2) Date May 10, 2023,
PCT Pub. No. WO2023/023925, PCT Pub. Date Mar. 2, 2023.
Prior Publication US 2023/0303947 A1, Sep. 28, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. C10M 173/00 (2006.01); C10M 133/06 (2006.01); C10N 30/16 (2006.01); C10N 40/22 (2006.01); C10N 50/00 (2006.01)
CPC C10M 173/00 (2013.01) [C10M 133/06 (2013.01); C10M 2201/02 (2013.01); C10M 2215/042 (2013.01); C10N 2030/16 (2013.01); C10N 2040/22 (2013.01); C10N 2050/011 (2020.05)] 11 Claims
OG exemplary drawing
 
1. A semi-synthetic metal working fluid, comprising:
a. at least one base oil;
b. at least one microbial growth control agent comprising a glycol ether amine selected from the group consisting of 1-[1-methyl-2-(1-methyl-2-propoxyethoxy)ethoxy]-2-propanamine, 1-(2-butoxy-1-methylethoxy)-2-propanamine, 1-(2-methoxy-1-methylethoxy)-2-propanamine, or 1-(1-methyl-2-propoxyethoxy)-2-propanamine;
c. one or more organic acids,
d. one or more emulsifiers,
e. optionally, one or more additives, and
f. water.