Ternary Composition Patents (Class 510/410)
  • Hydrochlorofluorocarbon azeotropic or azeotropic-like mixture
    Patent number: 5607912
    Abstract: 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.
    Type: Grant
    Filed: September 9, 1992
    Date of Patent: March 4, 1997
    Assignee: Asahi Glass Company Ltd.
    Inventors: Shunichi Samejima, Kenroh Kitamura, Naohiro Watanabe, Teruo Asano, Toru Kamimura, Yoko Usami
  • Azeotropic compositions
    Patent number: 5560861
    Abstract: Azeotropic compositions include a perfluorinated alkane or alkene and an organic solvent.
    Type: Grant
    Filed: December 2, 1994
    Date of Patent: October 1, 1996
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Richard M. Flynn, Mark W. Grenfell, Frank W. Klink, Daniel R. Vitcak