C - Chemistry – Metallurgy – 08 – L
Patent
C - Chemistry, Metallurgy
08
L
400/4102
C08L 83/07 (2006.01) C08G 77/38 (2006.01) C08G 77/398 (2006.01) C08L 83/04 (2006.01)
Patent
CA 1309531
HYDRAULIC SILICONE CRUMB WITH IMPROVED HEAT STABILITY ABSTRACT A silicone crumb in a fine particulate form has an extrusion rate of at least 50 grams per minute through an orifice of 0.5 inch diameter under a pressure of 345 kilopascals and compression points of less than 1035 kilopascals. This crumb is made from a vinyl-containing polyorganosiloxane, a silicon-bonded hydrogen containing polysiloxane, a platinum catalyst, and a heat stability additive compound containing zirconium, titanium, or hafnium and organosiloxane. The crumb is useful in hydraulic applications where it is exposed to temperatures above 500°F. for prolonged periods of time.
551196
Braun Joseph Thomas
Smith Schuyler Baird
Dow Corning Corporation
Gowling Lafleur Henderson Llp
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