Claims
- 1. A biphenyl-free heat transfer fluid comprising a mixture of diphenyl oxide and 1,1 diphenyl ethane.
- 2. The heat transfer fluid of claim 1 wherein said 1,1 diphenyl ethane is comprised of a mixture of 1,1 diphenyl ethane and one or more impurities.
- 3. The heat transfer fluid of claim 2 wherein said one or more impurities can be selected from the group consisting of diphenyl methane and 1,2 diphenyl ethane.
- 4. The heat transfer fluid of claim 1 wherein said 1,1 diphenyl ethane consists essentially of a mixture of 1,1 diphenyl ethane, 1,2 diphenyl ethane and diphenyl methane.
- 5. The heat transfer fluid of claim 4 wherein said 1,1 diphenyl ethane is about 92 to 95 weight percent of said mixture, said 1,2 diphenyl ethane is about 7 to 4 weight percent of said mixture, and said diphenyl methane is about 1 weight percent of said mixture.
- 6. The heat transfer fluid of claim 1 wherein the amount of said 1,1 diphenyl ethane ranges from an excess to equal to said diphenyl oxide.
- 7. The heat transfer fluid of claim 1 wherein the amount of said diphenyl oxide ranges from an excess to equal to said 1,1 diphenyl ethane.
- 8. The heat transfer fluid of claim 1 wherein said diphenyl oxide is present from 95-5% by weight of said mixture and said 1,1 diphenyl ethane is present from 5-50% by weight of said mixture.
- 9. The heat transfer fluid of claim 8 wherein said diphenyl oxide is present in about 95% by weight of said mixture and said 1,1 diphenyl ethane is present in about 5% by weight of said mixture.
- 10. The heat transfer fluid of claim 8 wherein said diphenyl oxide is present in about 85% by weight of said imxture and said 1,1 diphenyl ethane is present in about 15% by weight of said mixture.
- 11. The heat transfer fluid of claim 8 wherein said diphenyl oxide is present in about 75% by weight of said mixture and said 1,1 diphenyl ethane is present in about 25% by weight of said mixture.
- 12. The heat transfer fluid of claim 8 wherein said diphenyl oxide is present in about 50% by weight of said mixture and said 1,1 diphenyl ethane is present in about 50% by weight of sald mixture.
RELATED APPLICATIONS
This is a continuation-in-part of patent application Ser. No. 09/156,744, filed on Sep. 17, 1998, now abandoned.
US Referenced Citations (9)
Non-Patent Literature Citations (1)
Entry |
Chemical Abstracts, AN 87:184102, "Acid-catalyzed reactions of aromatic hydrocarbons with alkanes and cycloalkanes", Miethchen et al, 1977. |
Continuation in Parts (1)
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Number |
Date |
Country |
Parent |
156744 |
Sep 1998 |
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