US 7,320,954 B2
Pentafluorobutane composition and cleaning solvent composition
Akiyasu Kaneko, Saitama (Japan)
Assigned to Kaneko Chemical Co., Ltd., Saitama (Japan)
Filed on Feb. 24, 2005, as Appl. No. 11/64,647.
Claims priority of application No. 2004-065838 (JP), filed on Mar. 09, 2004.
Prior Publication US 2005/0233924 A1, Oct. 20, 2005
Int. Cl. C11D 7/50 (2006.01)
U.S. Cl. 510—365  [510/407; 510/408; 510/410; 510/412] 20 Claims
 
1. A pentafluorobutane composition comprising:
100 parts by weight of 1,1,1,3,3-pentafluorobutane;
0.1 to 5.0 parts by weight of at least one of nitromethane and nitroethane; and
0.1 to 5.0 parts by weight of at least one of 1,3-dioxolane, trimethoxymethane, trimethoxyethane, and 1,2-butylene oxide.