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Shin-Etsu Chemical patents coating

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By: KERRY PIANOFORTE

Editor, Coatings World, Coatings World

U.S. 7,868,119 B2
Shin-Etsu Chemical Co. has been awarded a patent for a coating composition comprised of 100 parts by weight of a fluoroelastomer composition; and 10 to 1,000 parts by weight of a diluent solvent consisting of a perfluoroalkyl-substituted aromatic compound and at least one perfluoro organic compound selected from the group consisting of a perfluoroalkane and perfluoro cyclic ether, in a weight ratio in the range from 60/40 to 90/10, wherein the fluoroelastomer composition is comprised of a linear polyfluoro compound containing at least two alkenyl groups per molecule and having a perfluoropolyether structure in its backbone, a fluorinated organohydrogensiloxane having at least two silicon-bonded hydrogen atoms per molecule, a platinum group metal catalyst and an organopolysiloxane containing per molecule at least one hydrogen atom bonded to a silicon atom directly and at least one group selected from among epoxy and trialkoxysilyl groups, which is bonded to a silicon atom via a carbon atom or carbon and oxygen atoms.

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