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US 8,795,820 B2Granted
Composite material
AssigneeHexcel Composites Limited
InventorJohn Leslie Cawse
Life of this patent
Estimating the term…
Abstract
A composite material (1) comprising at least one prepreg (3), said prepreg comprising at least one polymeric resin and optionally at least one fibrous reinforcement; and a conducting ink (2) applied to at least one surface of said prepreg (3); where the conducting ink (2) has a surface tension lower than the surface energy of the at least one surface of said prepreg (3) to which the ink (2) is applied.
Claims20
A composite material comprising:
- an uncured prepreg comprising at least one uncured thermosetting resin and fibers, said uncured prepreg comprising a tacky surface comprising said uncured thermosetting resin and wherein said tacky surface has a surface energy;
- and
- a pattern located on said tacky surface, said pattern comprising continuous lines of conducting ink wherein the conducting ink is a liquid that is tacky and has a surface tension wherein the surface tension of said conducting ink is lower than the surface energy of said uncured surface.
Dependencies are inferred from the claim text.