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AssigneeLord Corporation
InventorsJames R. Halladay, Frank J. Krakowski, Kenneth C. Caster, Ernest Barritt Troughton, Jr.
Estimating the term…
Emissive coatings for flexible substrates, preferably elastomers or elastomers bonded to metal are disclosed The coating composition is formed by combining parts (a) and (b) where part (a) comprises an organic solution or aqueous dispersion of a functional group containing polymer or copolymer and thermal conductive filler; and part (b) comprises a liquid curing component, for example a poly isocyanate, a carbodiimide, or an amino resin. The coating compounds can be applied to an substrate either before or after the substrate has been vulcanized. The coatings can be cured at ambient temperatures and provide heat dissipation over long term service at elevated temperatures.
A method for coating a molded elastomer article, said article optionally affixed to a shaped metal article, comprising spraying, dipping or brushing a solvent-based, room temperature curing elastomeric film forming coating to the surface of said molded elastomer article, said coating comprising a film forming elastomer, a curing agent, and thermally conductive metal particles, said particles range in size from 5-25 μm when present at a level of from 10-100 parts by weight per 100 parts by weight of said film forming elastomer, or said particles range in size from 25-100 μm when present at a level of from 20-150 parts by weight per 100 parts of said film forming elastomer, and wherein said film forming elastomer comprises a film-forming polymer exhibiting a Tg of less than 0° C. and incorporated therein a functional group which is reactive to an active hydrogen group-containing curing agent, or the functional group on the elastomer bears an active hydrogen group, and said film forming elastomer contains less than 10% ethylenic unsaturation.
Dependencies are inferred from the claim text.