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US 4,482,465 AGranted
Hydrocarbon-halocarbon refrigerant blends
AssigneePhillips Petroleum Company
InventorRoy A. Gray
Life of this patent
Estimating the term…
Abstract
A refrigeration process is conducted by employing as the refrigerant a mixture of one or more hydrocarbons and one or more halocarbons. The boiling points of the components of the mixture are bracketed in such a manner that the flammability of the mixture is reduced.
Claims26
A refrigeration process comprising employing as a refrigerant the composition comprising:
- (a) a first hydrocarbon,
- (b) a first halocarbon, and
- (c) a second hydrocarbon;
- wherein the boiling point of (a) is less than the boiling point of (b);
- wherein the boiling point of (b) is less than the boiling point of (c);
- and wherein (b) is substantially nonflammable.
3 more elements
A refrigeration process comprising employing as a refrigerant the composition comprising:
- (a) a first halocarbon,
- (b) a first hydrocarbon, and
- (c) a second halocarbon;
- wherein the boiling point of (a) is less than the boiling point of (b);
- wherein the boiling point of (b) is less than the boiling point of (c);
- and wherein (a) and (c) are substantially nonflammable.
3 more elements
A composition comprising:
- (a) a first hydrocarbon,
- (b) a first halocarbon,
- (c) a second hydrocarbon, and
- (d) a second halocarbon;
- wherein the boiling point of (a) is less than the boiling point of (b);
- wherein the boiling point of (b) is less than the boiling point of (c);
- wherein the boiling point of (c) is less than the boiling point of (d);
- and wherein (b) and (d) are substantially nonflammable.
5 more elements
Dependencies are inferred from the claim text.