Compositions – Electrolytes for electrical devices
Patent
1989-07-07
1990-05-29
Howard, Jacqueline V.
Compositions
Electrolytes for electrical devices
252 54, 252 58, 156333, C10M10738
Patent
active
049293680
ABSTRACT:
A couplant material for establishing a sonic path of good acoustical impedance between an ultrasonic transducer and a sonic medium. The material is capable of being easily shaped at room temperature and withstanding vibration and thermal cycling from room temperature to over 500.degree. F. while substantially maintaining its acoustical properties and providing a minimum of irritating fumes and outgasses. A preferred couplant material is a polytetrafluoroethylene grease or perfluoropolyalkylether grease, which have been used previously as lubricants.
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