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US 2025/0034478 A1Published application
Water-soluble metalworking fluid
AssigneeIdemitsu Kosan Co., Ltd.
InventorsYu Han TAN, Tomoaki OKANO, Stacy HADIWIDJAJA, Takeshi MITOMI, Yosuke JIBIKI
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Abstract
A water-soluble metalworking fluid that includes a base oil (A) and an ether carboxylic acid (B) represented by general formula (b-1), where A is a C1-4 alkylene group, when multiple A are present, each A may be the same group or may be a different group, B is a single bond or a C1-4 alkylene group, n is an integer of 1-100, and R is a hydrocarbon group. The ether carboxylic acid (B) content is 0.1-10 mass % based on the total amount of the water-soluble metalworking fluid.
Claims16
A water-soluble metalworking oil, comprising
- a base oil (A);
- and
- an ether carboxylic acid (B) represented by the following formula (b-1), wherein a content of the ether carboxylic acid (B) is 0.1 to 10% by mass based on a total mass of the water-soluble metalworking oil:
- wherein A is an alkylene group having 1 to 4 carbon atoms, and when a plurality of A are present, each A is the same or different from each other,
- B is a single bond or an alkylene group having 1 to 4 carbon atoms,
- n is an integer of 1 to 100, and
- R is a hydrocarbon group
4 more elements
13-14. (canceled)
Dependencies are inferred from the claim text.