Patent Number: 6,255,273

Title: Hydrofluoropolyether-based azeotropic or near azeotropic compositions

Abstract: Azeotropic or near azeotropic compositions based on difluoromethoxy-bis(difluoromethyl ether) and/or 1-difluoromethoxy-1,1,2,2-tetrafluoroethyl difluoromethyl ether.

Inventors: Musso; Ezio (Alessandria, IT), Basile; Giampiero (Alessandria, IT), Girolomoni; Sauro (Alessandria, IT)

Assignee: Ausimont S.p.A.

International Classification: B01D 12/00 (20060101); C11D 7/50 (20060101); C23G 5/00 (20060101); C11D 11/00 (20060101); C23G 5/028 (20060101); C23G 5/032 (20060101); C11D 7/22 (20060101); C11D 7/28 (20060101); C11D 7/26 (20060101); C11D 7/24 (20060101); C11D 007/50 (); C23G 005/028 (); C23G 005/032 ()

Expiration Date: 07/03/2018