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Azeotropes of octamethyltrisiloxane and n-propoxypropanol

  • US 5,454,972 A
  • Filed: 09/15/1994
  • Issued: 10/03/1995
  • Est. Priority Date: 09/15/1994
  • Status: Expired due to Fees
First Claim
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1. A composition consisting essentially of about 9 to about 27 percent by weight n-propoxypropanol and about 73 to about 91 percent by weight octamethyltrisiloxane wherein the composition is homogenous and azeotropic at a temperature within the range of about 0 to about 148 degrees Centigrade inclusive and wherein the composition has a vapor pressure of 1000 Torr at about 148 degrees Centigrade when the composition consists essentially of 73 percent by weight octamethyltrisiloxane and 27 percent by weight n-propoxypropanol and wherein the composition has a vapor pressure of 0.8 Torr at 0 degrees Centigrade when the composition consists essentially of 91 percent by weight octamethyltrisiloxane and 9 percent by weight n-propoxypropanol.

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