Patent ID: 7767754

Claim:
A curable hysteretic silicone gel-forming composition comprising: (A) at least one substantially resinous organopolysiloxane containing at least two silicon-bonded alkenyl groups per molecule; (B) at least one organohydrogenpolysiloxane containing at least two silicon-bonded hydrogen atoms per molecule, said organohydrogenpolysiloxane (B) being used in an amount such that the mole ratio of total amount of silicon-bonded hydrogen atoms contained in organohydrogenpolysiloxane (B) to silicon-bonded alkenyl groups contained in organopolysiloxane (A) is of from about 0.20 to about 0.79; (C) filler in an amount of from about 33 to about 70 parts per hundred of organopolysiloxane (A), wherein the filler has a particle size of from about 5 nanometers to about 200 nanometers; (D) catalyst; and, (E) inhibitor in an amount of from about 0.05 to about 1 weight percent, wherein said components (A)-(E) comprise said curable hysteretic silicone gel-forming composition, said gel-forming composition having an original shape upon being cured and which, upon curing, forms a hysteretic silicone gel that is characterized by a recovery time of at least 2 seconds as measured by the time the gel takes to return to substantially 100% of the original shape after being deformed by an indentation of 0.645 cm in width and 1.27 cm in depth, where polyorganosiloxane (A) is substantially resinous polyorganosiloxane and comprises, no less than about 30 weight percent of T and/or Q units, based upon the weight of substantially resinous polyorganosiloxane, where T=R 6 SiO 3/2 and Q=SiO 4/2 , where R 6 is selected from the group consisting of a monovalent hydrocarbon radical of from one to about sixty carbon atoms; an unsaturated monovalent hydrocarbon radical containing from 2 to 10 carbon atoms; and combinations thereof, provided that polyorganosiloxane (A) contains at least two silicon-bonded alkenyl groups per molecule.