	US 12,215,295 B2
	Cooling lubricant for cold rolling aluminum
Stephan Draese, Nettetal (DE); Thomas Graf, Bonn (DE); Oliver Seiferth, Köln-Zündorf (DE); and Volker Schmitz, Rommerskirchen (DE)
Assigned to Speira GmbH, Grevenbroich (DE)
Filed by Stephan Draese, Nettetal (DE); Thomas Graf, Bonn (DE); Oliver Seiferth, Köln-Zündorf (DE); and Volker Schmitz, Rommerskirchen (DE)
Filed on Feb. 17, 2023, as Appl. No. 18/171,003.
Application 18/171,003 is a continuation of application No. PCT/EP2021/072781, filed on Aug. 17, 2021.
Claims priority of application No. 20191350 (EP), filed on Aug. 17, 2020.
Prior Publication US 2023/0203395 A1, Jun. 29, 2023
Int. Cl. C10M 145/34 (2006.01); C10M 101/00 (2006.01); C10M 169/04 (2006.01); C22F 1/04 (2006.01); C10N 20/00 (2006.01); C10N 40/20 (2006.01)

CPC C10M 145/34 (2013.01) [C10M 101/00 (2013.01); C10M 169/041 (2013.01); C22F 1/04 (2013.01); C10N 2020/093 (2020.05); C10N 2040/243 (2020.05); C10N 2040/245 (2020.05)]

10 Claims

1. A method, comprising:

utilizing a cooling lubricant for rolling aluminum, the cooling lubricant comprising:

a mineral oil-based or synthetic base oil,

a polyalkylene glycol selected from the group consisting of polyethylene glycol, polypropylene glycol, polybutylene glycol, an ethoxylated fatty alcohol, and combinations thereof, wherein the ethoxylated fatty alcohol is a polyethylene glycol monododecyl ether,

wherein

the cooling lubricant is not water-soluble or miscible with water,

the cooling lubricant is substantially free of fatty acids and fatty alcohols, wherein substantially free means that a fatty acid as a lubricating additive is contained in a proportion of at most 0.2 wt. %, based on the mass of the cooling lubricant, and a fatty alcohol as a lubricating additive is contained in a proportion of at most 0.4 wt. %, based on the mass of the cooling lubricant,

the cooling lubricant is free of straight-chain olefins.