Composite structure of an aromatic polyamide fabric coated with a fluorosilicone rubber
AssigneeE. I. Du Pont de Nemours and Company
InventorsRichard H. Carlson, Gerald L. Gatcomb
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Abstract
A composite sheet structure of an aromatic polyamide fabric coated on both side with a 2-30 mil thick layer of a fluorosilicone rubber and having a dielectric constant of about 4-8 and a dissipation factor of about 0.015-0.030; the composite structure is useful as an insulating blanket that is used in a dielectric press to emboss laminates of thermoplastic polyurethane foam/short napped synthetic velour fabric used as upholstery for automobiles and trucks.
Claims7
A composite sheet structure comprising a layer about 2-30 mils thick of a fluorosilicone rubber firmly adhered to both sides of an aromatic polyamide fabric and having a dielectric constant of about 4-8 and a dissipation factor of about 0.015-0.030 where the dielectric constant and dissipation factor are determined at one megahertz frequency according to ASTMD-1531.
A composite sheet structure comprising a layer of about 5-15 mils thick of a fluorosilicone rubber firmly adhered to both sides of a woven fabric of oriented crystalline poly(metaphenylene isothalamide) fibers primed on both sides with a fluorosilicone rubber;
- wherein the composite structure has a dielectric constant of about 5.5-6.5 and a dissipation factor of about 0.020-0.025.
Dependencies are inferred from the claim text.