Polymer electrolyte fuel-cell separator sealing rubber composition.U.S. patent: 7,087,338 Issued: August 8, 2006 Inventors: Noriyuki Meguriya and Yujiro Taira Assigned: Shin-Etsu Chemical Key statement: A rubber composition comprising (A) an organopolysiloxane end-capped with alkenyldialkylsiloxy, radicals and free of aliphatic aliphatic /al·i·phat·ic/ (al?i-fat´ik) pertaining to any member of one of the two major groups of organic compounds, those with a straight or branched chain structure. al·i·phat·ic adj. unsaturation un·sat·u·rat·ed adj. 1. Of or relating to an organic compound, especially a fatty acid, containing one or more double or triple bonds between the carbon atoms. 2. Capable of dissolving more of a solute at a given temperature. , (B) an organipolysiloxane containing three alkenyl radicals on molecular side chains, (C) an organohydrogenpolysiloxane, (D) fumed fume n. 1. Vapor, gas, or smoke, especially if irritating, harmful, or strong. 2. A strong or acrid odor. 3. A state of resentment or vexation. v. silica and (E) an addition reaction catalyst forms a seal member having improved strength and reduced compression set and useful for sealing a polymer electrolyte electrolyte (ĭlĕk`trəlīt'), electrical conductor in which current is carried by ions rather than by free electrons (as in a metal). fuel-cell separator. |
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