Overbased sulfonates combined with petroleum oxidates for metal forming
US5439602A · kind A · utility
13Cited by
6References
39Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 6, 1994 |
| Grant date | Aug 8, 1995 |
| Priority date | — |
| Expiry date | Jul 6, 2014 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10N2060/04
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Compositions of matter comprising petroleum oxidate having a total acid number no greater than 35, and overbased calcium sulfonate having a total base number of at least about 150 and a strong total base number less than 10, which are free of or contain no more than trace amounts of carboxylic acids containing 8 or fewer carbon acids, are oil-soluble, non-gelling, and useful in metalworking compositions imparting lubricity and corrosion protection.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.