	US 11,795,414 B2
	Metalworking fluid containing a branched alcohol propoxylate
Frank Rittig, Ludwigshafen am Rhein (DE); Marcel Harhausen, Ludwigshafen am Rhein (DE); Thorsten Schoeppe, Ludwigshafen am Rhein (DE); Marcus Leubner, Ludwigshafen am Rhein (DE); Lu Yi Zhang, Shanghai (CN); Markus Hansch, Ludwigshafen am Rhein (DE); Kian Molawi, Ludwigshafen am Rhein (DE); and Jan Strittmatter, Ludwigshafen am Rhein (DE)
Assigned to BASF SE
Appl. No. 17/602,871
Filed by BASF SE, Ludwigshafen am Rhein (DE)
PCT Filed Apr. 1, 2020, PCT No. PCT/EP2020/059319 § 371(c)(1), (2) Date Oct. 11, 2021, PCT Pub. No. WO2020/207881, PCT Pub. Date Oct. 15, 2020.
Claims priority of application No. PCT/CN2019/082439 (WO), filed on Apr. 12, 2019.
Prior Publication US 2022/0162514 A1, May 26, 2022
Int. Cl. C10M 145/36 (2006.01); C10M 145/30 (2006.01); C10M 173/02 (2006.01); C10N 20/00 (2006.01); C10N 50/00 (2006.01); C10N 20/02 (2006.01); C10N 30/18 (2006.01); C10N 40/22 (2006.01); C10N 40/24 (2006.01)

CPC C10M 145/36 (2013.01) [C10M 145/30 (2013.01); C10M 173/02 (2013.01); C10M 2209/1055 (2013.01); C10M 2209/1085 (2013.01); C10N 2020/02 (2013.01); C10N 2020/071 (2020.05); C10N 2030/18 (2013.01); C10N 2040/22 (2013.01); C10N 2040/24 (2013.01); C10N 2050/01 (2020.05)]

12 Claims

1. A method of processing a workpiece comprising

a) contacting a tool and a workpiece to effect a change in the shape of the workpiece, and

b) applying a metalworking fluid to a surface area where the tool and the workpiece are in contact,

where the metalworking fluid contains a propoxylate of the formula R—O—(CH₂—CH(CH₃)—O)_n—H, where R is a branched C₁₀to C₁₃alkyl and n is from 5 to 25, and wherein the metalworking fluid is formulated as

a straight oil, which contains the at least 80 wt % of a propoxylate, and which is applied without dilution of water;

a soluble oil, which contains 30 to 85 wt % mineral oil and up to 20 wt % propoxylate, and which is applied after dilution with water as aqueous emulsion; or

a semi-synthetic fluid, which contains 5-30 wt % mineral oil, 30-50 wt % water, and up to 20 wt % propoxylate, and which is applied without dilution of water.