Composition of poly(dimethylsiloxane) and microspheres
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United States of America Patent
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Apr 20, 1999
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N/A
app pub date -
Sep 3, 1996
filing date -
Sep 3, 1996
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Expired
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Abstract
A composition useful as a bouyant putty comprises a continuous phase having a viscosity of greater than 100,000 cs and less than a viscosity corresponding to a penetration number of 500 containing a polydimethylsiloxane which is a mixture of a silicone fluid with a viscosity of not more 100,000 cs and a silicone gum possessing a penetration number of from 500 to 1500, and a discontinuous phase of hollow, gas-filled organic polymer microspheres.
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