Patent Number: 6,310,760

Title: Adhesive, elastomeric gel impregnating composition

Abstract: 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.

Inventors: Shaw; David Glenn (Tucson, AZ), Pollard; John Randolph (Tucson, AZ), Brooks; Robert Aubrey (Tijeras, NM)

Assignee: Sandia Corporation

International Classification: H01G 4/22 (20060101); H01G 4/018 (20060101); H01G 004/22 ()

Expiration Date: 10/30/2018