Patent ID: 8147710

Claim:
A composition comprising HFO-1234yf and at least one additional compound selected from the group consisting of CFC-114a (2-dichloro-1,1,1,2-tetrafluoroethane, CCl 2 FCF 3 ), HCFC-124 (2-chloro-1,1,1,2-tetrafluoroethane, CF 3 CHFCl), HFC-143a (1,1,1-trifluoroethane, CF 3 H 3 ), CFO-1113 (2-chloro-1,1,2-trifluoroethene, CClF═CF 2 ), HFO-1123 (1,1,2-trifluoroethene, CHF═CF 2 ), HFO-1132a (1,1-difluoroethene, CH 2 ═CF 2 ), TFE (tetrafluoroethene, CF 2 ═CF 2 ), HCFO-1122 (2-chloro-1,1-difluoroethene, CHCl═CF 2 ), 3,4,4,4-tetrafluoro-2-butanone (CH 3 C(═O)CHFCF 3 ), acetyl fluoride (CH 3 C(═O)F), 2-chloro-2,3,3,3-tetrafluoropropanol (CF 3 CClFCH 2 OH), 2-chloro-2,3,3,3-tetrafluoropropyl acetate (CF 3 CClFCH 2 OC(═O)CH 3 ), Zinc (2-chloro-2,3,3,3-tetrafluoropropoxy) chloride (CF 3 CClFCH 2 OZnCl), 2-chloro-2,3,3,3-tetrafluoropropoxy methyl acetate (CF 3 CFClCH 2 OCH 2 C(═O)CH 3 ), 1,3-bistrifluoromethyl-1,3-difluorocyclobutane (C 6 H 4 F 8 ), 2,3,3,3-tetrafluoropropyl acetate (CF 3 CHFCH 2 C(═O)CH 3 ), dimethylformamide (DMF, HCON(CH 3 ) 2 ), pyridine (C 5 H 5 N), ethyl acetate, (CHClFCF 3 ), acetic acid (CH 3 C(═O)OH), diethyl ether (CH 3 CH 2 OCH 2 CH 3 ), acetic anhydride (CH 3 C(═O)OC(═O)CH 3 ), methyl acetate (CH 3 C(═O)OCH 3 ), dimethylacetamide (CH 3 C(═O)N(CH 3 ) 2 ), methanol (CH 3 OH), ethanol CH3CH2OH), methyl formate (HC(═O)OCH 3 ), pyrazine, pyrimidine, N-methylpyrrolidine, N-methylpiperidine, hexamethylphosphoramide, tetrahydrofuran, 1,4-dioxane, N-methylpyrrolidinone, dimethyl sulfoxide, acetonitrile, benzonitrile, and mixtures thereof; provided that the composition comprises HFC-143a, HFO-1123, CFO-1113, HCFC-124 and CFC-114a.