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AssigneeAsahi Glass Company, Limited
InventorsShunichi Samejima, Kenroh Kitamura, Naohiro Watanabe, Teruo Asano, Toru Kamimura, Yoko Usami
Estimating the term…
A hydrochlorofluorocarbon azeotropic or azeotropic-like mixture comprising at least one member selected from the group consisting of hydrogen-containing fluoropropanes of the formula I: CH.sub.a Cl.sub.b F.sub.c CF.sub.2 CH.sub.x Cl.sub.y F.sub.z (I) wherein a+b+c=3, x+y+z=3, a+x.gtoreq.1, b+y.gtoreq.1, and 0.ltoreq.a,b,c,x,y,z.ltoreq.3, and at least one member selected from the group of compounds II consisting of halogenated hydrocarbons having a boiling point of from 20.degree. to 85.degree. C. other than said hydrochlorofluoropropanes, hydrocarbons having a boiling point of from 20.degree. to 85.degree. C. and alcohols having from 1 to 4 carbon atoms.
A hydrochlorofluorocarbon azeotropic like mixture consisting essentially of
A hydrochlorofluorocarbon azeotropic mixture consisting essentially of 94.6 weight percent 1,1-dichloro-2,2,3,3,3-pentafluoropropane and 5.4 weight percent methanol which boils at 46.degree. C. at atmospheric pressure;
An azeotropic composition consisting essentially of CF.sub.3 CF.sub.2 CHCl.sub.2 (225ca), CClF.sub.2 CF.sub.2 CHClF (225cb) and methanol, in amounts, by weight of 89.8 percent, 5.6 percent and 4.6 percent, respectively which boils at about 46.degree. C. at atmospheric pressure.
An azeotropic composition consisting essentially of CF.sub.2 CF.sub.2 CHCl.sub.2 (225ca), CClF.sub.2 CF.sub.2 CHClF (225cb) and ethanol, in amounts, by weight of 94.8 percent, 2.7 percent and 2.5 percent, respectively which boils at about 50.degree. C. at atmospheric pressure.
Dependencies are inferred from the claim text.