Heat transfer oil and method for driving a Freon turbine
US4313840A · kind A · utility
2Cited by
5References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 7, 1980 |
| Grant date | Feb 2, 1982 |
| Priority date | — |
| Expiry date | Mar 7, 2000 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10N2040/50
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Freon stable heat transfer oil comprising polyol ester containing tris-(alkylphenyl) phosphite and benzotriazole ##STR1## or benzotriazole derivative ##STR2## in which R.sub.1 and R.sub.2 each represents a hydrogen atom or an alkyl group. It is desirable to add tris-(alkylphenyl) phosphite or tris-(phenyl) phosphite in an amount in the range between 0.02-5% by weight and to add benzotriazole or its derivative in an amount in the range between 0.02-1% by weight to the heat transfer oil.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.