C - Chemistry – Metallurgy – 09 – K
Patent
C - Chemistry, Metallurgy
09
K
260/441, 400/531
C09K 15/32 (2006.01) C08G 77/398 (2006.01) C08L 83/04 (2006.01)
Patent
CA 1096602
Abstract of the Disclosure Endblocked methylpolysiloxane fluids, such as trimethylsiloxane-endblocked polydimethylsiloxanes, are made more resistant to thermally induced siloxane rearrangement by incorporating therein titanium-, zirconium-, or hafnium- containing compounds. Incorporation of these compounds may be accomplished either by mixing organosiloxy derivatives of Ti, Zr, or Hf with the fluid or by mixing certain organic derivatives of Ti, Zr, or Hf with the fluid and heating the mixture to decompose the added organic derivative. Further improvements in the thermal stability of the fluid may be obtained by mixing with the titanium-, zirconium-, or hafnium-containing fluid a small amount of an organosilicon hydride compound. The thermally stabilized fluids are particularly useful as heat-transfer fluids in non-oxidative, anhydrous environments.
298145
Dow Corning Corporation
Gowling Lafleur Henderson Llp
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