Importance

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Abstract

The air conditioning hose of this invention offers an extremely high level of resistance to permeation by refrigerants, including carbon dioxide, as well as good flexibility, high strength, the ability to bend to small radii without kinking, and the ability to be tightly coupled to refrigeration device components in a leak proof fashion. The subject invention specifically discloses a refrigerant hose comprising: (a) a core layer, wherein the core layer is comprised of a thermoplastic polymer, and wherein the core layer includes perforations; (b) a metal foil layer which is situated over the core layer; (c) plastic layer which is situated over the metal foil layer; (d) a rubber layer which is situated over the plastic layer, (e) a reinforcing layer which is situated over the rubber layer; and (f) a cover layer which is situated over the reinforcing layer, wherein the cover layer is comprised of a rubbery polymer.

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First Claim