Base fluid
US5688750A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 1, 1995 |
| Grant date | Nov 18, 1997 |
| Priority date | — |
| Expiry date | Dec 1, 2015 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10N2070/02
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A base fluid for metal working fluids comprises a stoichiometrically neutral salt of the partial esterification product having an acid number of 10-120, preferably 20-100 of polymerized fatty acids and a monohydric alkoxylated alcohol, selected from (a) straight or branched chain saturated monohydric C.sub.1 -C.sub.24 alcohols, alkoxylated with 2-25 moles of C.sub.2 -C.sub.5 alkylene oxide, (b) alkoxy poly(alkylene) glycol etherified with C.sub.1 -C.sub.4 aliphatic monohydric alcohol and which is alkoxylated with 2-25 moles of C.sub.2 -C.sub.5 alkylene oxide, (c) an aliphatic, straight or branched chain, saturated or unsaturated C.sub.1 -C.sub.24 monohydric alcohol, and mixtures thereof, which partial ester is converted into a stoichiometrically neutral salt by neutralizing it by ammonium hydroxide, or an alkali metal hydroxide or an alkyl amine or an alkanol amine. Also the novel stoichiometrically neutral alkali metal and alkanol amine salts of the partial esters have been claimed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.