Metalworking lubricant composition containing a novel substituted malonic acid diester
US4517105A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 7, 1983 |
| Grant date | May 14, 1985 |
| Priority date | — |
| Expiry date | Mar 7, 2003 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10N2040/247
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A metalworking lubricant composition comprising a novel substituted diester of malonic acid having the general formula EQU R.sub.1 R.sub.2 C(COOR.sub.3)(COOR.sub.4) wherein R.sub.1 is a C.sub.8 -C.sub.18 linear alkyl group or a C.sub.8 -C.sub.30 branched alkyl group or a C.sub.8 -C.sub.30 alkyl aryl group; R.sub.2 is H or a C.sub.1 -C.sub.18 linear alkyl group or a C.sub.8 -C.sub.30 branched alkyl group or a C.sub.8 -C.sub.30 alkyl aryl group; and R.sub.3 and R.sub.4 are C.sub.1 -C.sub.4 linear or branched alkyl groups. The substituted malonic diester may be used either in neat form or as an additive to mineral oil. The metalworking lubricant composition of the invention imparts enhanced lubricity and wear resistance to the surfaces of metals such as aluminum and aluminum alloys.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.