Patent ID: 9550967
Date: 2017-01-24
CPC Classifications: B08B,C11D,C23G

Claim:
1. A method of repairing or maintaining an aircraft engine containing metal parts, said method comprising cleaning a metal part of the aircraft engine by steps that include contacting the metal part with a solvent composition comprising at least about 50% by weight of 1-chloro-3,3,3-trifluoropropene, said metal part comprising a metal or a metal alloy selected from the group consisting of aluminum and aluminum alloys, titanium and titanium alloys; zinc and zinc alloys; tungsten and tungsten alloys; copper and copper alloys; Inconel-Ni alloys; silver and silver alloys; cadmium and cadmium alloys; stainless steels; gold and gold alloys; and silver and silver alloys.