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Adhesive, elastomeric gel impregnating composition

United States Patent

June 11, 2002
View the Complete Patent at the US Patent & Trademark Office
Sandia National Laboratories - Visit the Intellectual Property Management and Licensing Website
An improved capacitor roll with alternating film and foil layers is impregnated with an adhesive, elastomeric gel composition. The gel composition is a blend of a plasticizer, a polyol, a maleic anhydride that reacts with the polyol to form a polyester, and a catalyst for the reaction. The impregnant composition is introduced to the film and foil layers while still in a liquid form and then pressure is applied to aid with impregnation. The impregnant composition is cured to form the adhesive, elastomeric gel. Pressure is maintained during curing.
Shaw; David Glenn (Tucson, AZ), Pollard; John Randolph (Tucson, AZ), Brooks; Robert Aubrey (Tijeras, NM)
Sandia Corporation (Albuquerque, NM)
09/ 924,040
August 6, 2001
GOVERNMENT RIGHTS This invention was made with Government support under Contract No. DE-AC04- 94AL85000 awarded by the U.S. Department of Energy. The Government has certain rights in the invention.