Compositions – Fluent dielectric – O-containing
Reexamination Certificate
2006-05-23
2006-05-23
Mruk, Brian P. (Department: 1751)
Compositions
Fluent dielectric
O-containing
C252S073000, C252S075000, C252S079000, C252S578000, C252S365000
Reexamination Certificate
active
07048875
ABSTRACT:
High oleic acid triglyceride compositions that comprise fatty acid components of at least 75% oleic acid, less than 10% diunsaturated fatty acid component; less than 3% triunsaturated fatty acid component; and less than 8% saturated fatty acid component; and having the properties of a dielectric strength of at least 35 KV/100 mil gap, a dissipation factor of less than 0.05% at 25NC, acidity of less than 0.03 mg KOH/g, electrical conductivity of less than 1 pS/m at 25NC, a flash point of at least 250NC and a pour point of at least −15NC are disclosed. Electrical insulation fluids comprising the triglyceride composition are disclosed. Electrical insulation fluids that comprise the triglyceride composition and a combination of additives are disclosed. Electrical apparatuses comprising the electrical insulation fluids and the use of electrical insulation fluids to provide insulation in electrical apparatuses are disclosed. A process for preparing the high oleic acid triglyceride composition is disclosed.
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Claiborne C. Clair
Oommen Thottathil V.
ABB Technology AG
Katterle Paul R.
Mruk Brian P.
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