Drop-in substitute for dichlorodifluoromethane refrigerant

Details Drop-in substitute for dichlorodifluoromethane refrigerant Drop-in substitute for dichlorodifluoromethane refrigerant

1991-01-07

1992-09-29

Skane, Christine

Compositions

Vaporization, or expansion, refrigeration or heat or energy...

62114, C09K 504

Patent

active

051512076

ABSTRACT:
A novel ternary mixture of refrigerants that can be drop-in substituted for dichlorodifluoromethane (R-12), but that, unlike dichlorodifluoromethane, causes very little ozone damage, comprising aproximately 2 to 20% by weight isobutane (R-600a), approximately 41 to 71% by weight chlorodifluoromethane (R-22), and aproximately 21 to 51% by weight chlorodifluoroethane (R-142b), with the weight percentages being of the overall mixture.

REFERENCES:
patent: 4303536 (1981-12-01), Orfeo et al.
patent: 4482465 (1984-11-01), Gray
patent: 4510064 (1985-04-01), Ermak
patent: 4810403 (1989-03-01), Bivens et al.

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