Lubricant compositions for metalworking
US4834891A · kind A · utility
4Cited by
7References
9Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Aug 20, 1987 |
| Grant date | May 30, 1989 |
| Priority date | — |
| Expiry date | Aug 20, 2007 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10N2050/02
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
The present invention provides a lubricant composition for metalworking at a temperature higher than 200.degree. C. which comprises as its active components (i) at least one alkali metal salts of phthalic acid and (ii) a glass composition comprising 20 to 70% by weight of P.sub.2 O.sub.5, 8 to 72% by weight of M.sub.2 O wherein M is an alkali metal and 0 to 80% by weight of B.sub.2 O.sub.3, the ratio of component (i) to component (ii) being about 10:90 to about 90:10 in a total amount of 100 parts by weight.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.