Pressure sensitive material
AssigneeLeatech, LLC
InventorsMarvine Hamner, Robert Mulligan
Life of this patent
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Abstract
A polymeric material which exhibits an optically detectable response to changes in pressure. The material includes an elastomer selected from the group of a polyurethane, a polyacrylate, and a silicone, in combination with a photochemical system. The photochemical system may be in the form of an exciplex or a fluorescence resonance energy transfer. Both photochemical systems are reversible processes. Synthesis of the elastomer and the photochemical system produce a material which forms an excited charge transfer complex when subject to an increase in pressure and a less excited charge transfer complex as pressure is lowered.
Claims16
1-15. (canceled)
A polymeric material comprising:
- an elastomer;
- a photochemical system including fluorescent distance probing molecules modified for incorporation into said elastomer;
- and
- said photochemical system comprising ranging from about 1 milligram to about 100 milligrams of fluorescent distance probing molecules per 10 grams of polymer.
The polymeric material of claim 30, wherein said polyacrylate comprises a monomer selected from the group consisting of:
- butyl acrylate and methyl methacrylate.
The polymeric material of claim 30, wherein said silicone is selected from the group consisting of:
- GE silicone TSE-399c and a high viscosity silicone sealant.
Dependencies are inferred from the claim text.