公开(公告)号：US20240110088A1

公开(公告)日：2024-04-04

申请号：US18551803

申请日：2022-03-17

Applicant: BASF SE

Inventor： Harald Dietl ,  Roger Sieg ,  Sebastian Lang ,  Sandra Schnell ,  Stephan Bauer

IPC: C09K5/20

CPC classification number: C09K5/20

Abstract: Novel aqueous coolants with improved temperature stability contain (A) water; (B) at least one alkylene glycol, alkylene glycol monoalkyl ether, or glycerol; (C) at least one phosphate, carbonate, and/or sulfate in the form of its free acids or its salts; (D) at least one hard water stabilizer; and optionally, further inhibitors and typical coolant constituents. The aqueous coolants are useful, for example, in internal combustion engines.