Water based semi-synthetic metal working fluid composition containing an alkyl alcohol amine

Patent metadata

Field	Value
Publication number	US-2025059457-A1
Application number	US-202218723493-A
Country	US
Kind code	A1
Filing date	Mar 31, 2022
Priority date	Mar 31, 2022
Publication date	Feb 20, 2025
Grant date	—

Abstract

The present invention describes a water based semi-synthetic metal working fluid comprising a base oil, an organic acid, emulsifiers, a concentrate additive, water and a microbial growth control agent which comprises an alky alcohol amine.

First claim

1 . A semi-synthetic metal working fluid, comprising:
a. at least one base oil; b. at least one microbial growth control agent consisting of one or more alkyl amine alcohols with the structure of:

wherein R 1 is H or a methyl or ethyl group and R 2 is C 3 -C 6 alkyl or C 5 -C6 cycloalkyl group;

c. one or more organic acid,
d. one or more emulsifiers,
e. one or more concentrate additives, and
f. water.

2 . The semi-synthetic metal working fluid of claim 1 , wherein R 1 of the at least one microbial growth control agent is H.

3 . The semi-synthetic metal working fluid of claim 1 , wherein R2 of at least one microbial growth control agent is C3-C6 alkyl or C5-C6 cycloalkyl group.

4 . The semi-synthetic metal working fluid of claim 1 , wherein the microbial growth control agent further comprises at least two alkyl amine alcohols.

5 . The semi-synthetic metal working fluid of claim 1 , wherein the microbial growth control agent is n-butyl ethanol amine.

6 . The semi-synthetic metal working fluid of claim 1 , wherein the microbial growth control agent is n-cyclohexylethanolamine.

7 . The semi-synthetic metal working fluid of claim 1 , wherein the base oil is selected from naphthenic oils, paraffinic oils, ester oils and mixtures thereof.

8 . The semi-synthetic metal working fluid of claim 1 , wherein the emulsifier is selected from C16-18 alcohols which have been ethoxylated or propoxylated, ethoxylated C12-C15 alcohols, sodium alkane sulfonate and alky ether carboxylates and mixtures thereof.

9 . The semi-synthetic metal working fluid of claim 1 , wherein the solubilizer/corrosion inhibitor is selected from ethylhexoic acid, azelaic acid, toll oil fatty acid, 12-hydoxyl-(cis)-9-octadecenoic acid, dicarboxylic acid, 9-octadecenoic acid, sebacic acid, and mixtures thereof.

10 . The semi-synthetic metal working fluid of claim 1 , wherein the concentrate additive is selected from diethylene glycol butyl ether, ethylene glycol monobutyl ether, propylene glycol butyl ether and mixtures thereof.

11 . The semi-synthetic metal working fluid of claim 1 , wherein the microbial growth control agent is present in an amount of from 6 to 15 percent by weight of the semi-synthetic metal working fluid.

12 . The semi-synthetic metal working fluid of claim 1 , wherein the base oil is present in an amount of from 10 to 45 percent by weight of the semi-synthetic metal working fluid.

13 . The semi-synthetic metal working fluid of claim 1 , wherein the emulsifier is present in an amount of from 5 to 20 percent by weight of the semi-synthetic metal working fluid.

14 . The semi-synthetic metal working fluid of claim 1 , wherein the solubilizer is present in an amount of from 3 to 10 percent by weight of the semi-synthetic metal working fluid.

15 . The semi-synthetic metal working fluid of claim 1 , wherein the water is present in an amount of from 20 to 60 percent by weight of the semi-synthetic metal working fluid.

Assignees

• Dow Global Technologies Llc

Inventors

• Jiang Qi
• Zhao Chao
• Chen Xue
• Zhao Yong

Classifications

• C10N2040/22

  with essential removal of material {, e.g. cutting, grinding or drilling} · CPC title

• C10N2030/16

  Antiseptic; {(micro)} biocidal {or bactericidal} · CPC title

• C10N2030/12

  Inhibition of corrosion, e.g. anti-rust agents or anti-corrosives · CPC title

• C10M2219/044

  Sulfonic acids, Derivatives thereof, e.g. neutral salts · CPC title

• C10M2215/042

  containing hydroxy groups; Alkoxylated derivatives thereof · CPC title