Back to results
US 2015/0175867 A1Published application
Compositions containing chlorofluoroolefins or fluoroolefins
AssigneeHoneywell International Inc.
InventorsRobert C. Johnson, Hsueh S. Tung, Rajiv R. Singh, Ian Shankland
Life of this patent
Estimating the term…
Abstract
Compositions and methods based on the use of fluoroalkene containing from 3 to 4 carbon atoms and at least one carbon-carbon double bond, such as HFO-1214, HFO—HF0-1233, or HF0-1354 having properties highly beneficial in foaming and blowing agent applications, articles and methods.
Claims17
1-27. (canceled)
A heat transfer system comprising a heat transfer composition having low or no acute toxicity comprising:
- (a) lubricant;
- (b) at least one flammable component selected from hydrofluorcarbons and hydrocarbons;
- (b) at least about 50% by weight of one or more compounds in accordance with Formula II:
- where R′ is —CF3 and each R is independently Cl, F or H, provided that at least one R on the unsaturated terminal carbon is chlorine, and wherein (i) said one or more compounds of Formula II include no substantial amount of 1,2-dichloro-3,3,3-trifluoropropene, (ii) the acute toxicity level of said one or more compounds of Formula II is at least 30 relative percent less than the acute toxicity level of 1,2-dichloro-3,3,3-trifluoropropene;
- and (iii) said at least one compound of Formula II reduces the flammability of said heat transfer composition;
- and
- (c) wherein the acute toxicity level of the composition is at least 30 relative percent less than the acute toxicity level of 1,2-dichloro-3,3,3-trifluoropropene.
4 more elements
Dependencies are inferred from the claim text.