Heat transfer fluids having low freeze points
US4054533A · kind A · utility
3Cited by
2References
5Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 24, 1976 |
| Grant date | Oct 18, 1977 |
| Priority date | — |
| Expiry date | Jun 24, 1996 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09K5/08
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Heat transfer fluids consisting essentially of about, by weight: PA1 A. 20 to about 40 percent diphenyl ether; PA1 B. 40 to about 60 percent of a 2-biphenylylphenyl ether (2-bippe) and 4-biphenylylphenyl ether (4-bippe) mixture at a 2-bippe:4-bippe weight ratio of at least about 2:1; and PA1 C. 12 to about 25 percent of a polyphenylphenol mixture Exhibit freeze points of -18.degree. C or less. These heat transfer fluids have excellent fluidity over a broad temperature range and display unexpectedly good thermal stability.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.