Patents Examined by M. Einsmann
  • Patent number: 5277709
    Abstract: A coating composition comprising a) an organic film-forming binder; and b) a corrosion-inhibiting amount of a substantially water-insoluble mono- or poly-basic salt of:i) a ketoacid having the formula I: ##STR1## in which m and n, independently, are 0 or an integer from 1 to 10 provided that the sum of m and n is at least 1; A is C.sub.1 -C.sub.15 alkyl, C.sub.2 -C.sub.15 alkenyl, optionally substituted C.sub.3 -C.sub.12 cycloalkyl, C.sub.2 -C.sub.15 alkyl interrupted by one or more O-, N- or S-atoms, optionally substituted C.sub.6 -C.sub.10 aryl, optionally substituted C.sub.7 -C.sub.12 aralkyl, optionally substituted C.sub.7 -C.sub.12 aralkenyl, a heterocyclic residue or a ferrocenyl residue; R.sub.1, R.sub.2, R.sub.3 and R.sub.4 are the same or different and each is a substituent A, hydrogen, OH, O-C.sub.1 -C.sub.15 alkyl, NH.sub.2, NH(C.sub.1 -C.sub.15 alkyl), N(C.sub.1 -C.sub.15 alkyl).sub.2, CO.sub.2 H, CO.sub.2 (C.sub.1 -C.sub.15 alkyl), SO.sub.3 H, P(O) (OH).sub.2 P(O)(OH)(O-C.sub.1 -C.sub.
    Type: Grant
    Filed: January 16, 1992
    Date of Patent: January 11, 1994
    Assignee: Ciba-Geigy Corporation
    Inventors: William P. Armstrong, Emyr Phillips
  • Patent number: 5258066
    Abstract: An ink comprising a dye and a liquid medium for dissolving or dispersing a dye, wherein the liquid medium comprises an alkyl alcohol having 2 to 4 carbon atoms, in which at least one of the hydrogen atoms is substituted by a halogen atom.
    Type: Grant
    Filed: November 12, 1991
    Date of Patent: November 2, 1993
    Assignee: Canon Kabushiki Kaisha
    Inventors: Masatsune Kobayashi, Shohji Koike, Shinichi Tochihara, Kyoko Fukushima, Akira Nagashima, Koromo Shirota, Kumiko Mafune
  • Patent number: 5248333
    Abstract: Mixtures of light colored bis(C.sub.8 -C.sub.22 fatty acid) alkylene diamides, C.sub.8 -C.sub.22 fatty acid esters, and, if desired, metal soaps of C.sub.8 -C.sub.22 fatty acids can be obtained if, in a melt containing fatty acids with 8 to 22 carbon atoms, a part of the fatty acids are condensed to the corresponding fatty acid diamides with diamines of the general formula NH.sub.2 --R--NH.sub.2, in which R is a straight chain, branched, or cyclic alkylene group with 2 to 12 carbon atoms; a part of the fatty acids are esterified with fatty alcohols with 8 to 22 carbon atoms and/or multifunctional alkanols with 2 to 15 carbon atoms and 2 to 6 hydroxyl groups; and, if desired, a part of the fatty acids are converted to the corresponding metal soaps with basic compounds of divalent metals. The condensation with the diamines is carried out before the esterification of the fatty acids with fatty alcohols and/or multifunctional alkanols. The mixtures so obtained can be used as additives in plastics.
    Type: Grant
    Filed: November 19, 1991
    Date of Patent: September 28, 1993
    Assignee: Neynaber Chemie GmbH
    Inventors: Kurt Worschech, Erwin Fleischer, Peter Wedl, Frido Loeffelholz
  • Patent number: 5049191
    Abstract: An asbestos-free friction material for brake linings and clutches comprising at least one binder and a reinforcing material, at least a portion of the reinforcing material being sepiolite in the form of short fibers.
    Type: Grant
    Filed: March 15, 1990
    Date of Patent: September 17, 1991
    Assignee: Rutgerswerke AG
    Inventors: Detlef U. Pflug, Wilfried Koch, Armin Eckert