| abstract |
A silicone composition with controlled rheological properties and a controlled specific gravity that may vary from 1.035 to 1.06 comprising a diorganopolysiloxane and blends of diorganopolysiloxanes which are compatible with each other which polysiloxanes have a viscosity that may vary anywhere from 10,000 to 500,000 centipoise at 25° C, and a filler selected from the class consisting of fumed silica, precipitated silica, fumed silica treated with a silicone compound, precipitated silica treated with a silicone compound. Such compositions may be utilized with blood samples when the blood sample is treated to separate the blood clots from the blood serum which composition forms an integral barrier between such separated blood clots and the blood serum. |