Patents by Inventor Nikolai A. Ryabinin

Nikolai A. Ryabinin has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Amides and esters of perfluoropolyoxaalkylene-sulfo- or perfluoropolyoxaalkylene-carboxylic acids and a process for producing same
    Patent number: 5606098
    Abstract: Amides and esters of perfluoropolyoxaalkylene-sulfo- or perfluoropolyoxaalkylene-carboxylic acids of the general following formula:R.sub.F R.sub.F.sup.I ZQ, whereR.sub.F =CF.sub.3 O--, C.sub.2 F.sub.5 O--, C.sub.3 F.sub.7 O--, C.sub.8 F.sub.17 O--,R.sub.F.sup.I= ##STR1## --(CF.sub.2 CF.sub.2 O--).sub.n CF.sub.2 --, --(CF.sub.2 CF.sub.2 CF.sub.2 O).sub.n CF.sub.2 CF.sub.2 --,where n=8-55;Z=--CO--, --SO.sub.2 --,Q=--N(C.sub.m H.sub.2m OH).sub.2, where m=2, 3, 4, 6, 8, 10--N[(C.sub.2 H.sub.4 O).sub.4 C.sub.3 H.sub.6 OH].sub.2,--NH--C.sub.2 H.sub.4 OR.sub..eta., where R.eta.=CH.sub.3 --, C.sub.2 H.sub.5 --, C.sub.3 H.sub.7 --,--NH(C.sub.2 H.sub.4 O).sub.5 H,--OC.sub.1 H.sub.21 N(C.sub.1 H.sub.21 OH).sub.2, where .eta.=1, 2, 4C.sub.k H.sub.2k+1 O--, where k=6, 8, 10.
    Type: Grant
    Filed: October 3, 1995
    Date of Patent: February 25, 1997
    Assignee: AO "Avtokoninvest"
    Inventors: Nikolai A. Ryabinin, Aleksandr N. Ryabinin