Patents by Inventor Frank Jaekel

Frank Jaekel 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).

  • Patent number: 5419846
    Abstract: The present invention relates to stable granules comprising active substance, granulating auxiliary, enveloping substance and if appropriate additional components, wherein the enveloping substance in each case comprisesa) silicon dioxide particles orb) homopolymers of unsaturated sulfonic acids orc) copolymers of unsaturated sulfonic acids and unsaturated carboxylic acids ord) homopolymers of (meth)acrylic acid esters ore) copolymers of (meth)acrylic acid esters and unsaturated carboxylic acids orf) mixtures of one or more of these constituents.
    Type: Grant
    Filed: August 18, 1993
    Date of Patent: May 30, 1995
    Assignee: Hoechst AG
    Inventors: Frank Jaekel, Gerd Reinhardt, Gerhard Noltner, Eric Jacquinot, Rudiger Funk, Manfred Muller
  • Patent number: 5235099
    Abstract: A process for the preparation of ureidoperoxycarboxylic acids of the formula ##STR1## in which x is the number 1 or 2,A,if x is 1,is hydrogen, C.sub.1 -C.sub.20 -alkyl, aryl, preferably phenyl, or haloaryl, preferably chlorophenyl, orif x is 2,is C.sub.1 -C.sub.20 -alkylene or arylene, preferably phenylene,B is a group of the formula ##STR2## in which n is a number from 1 to 20,m is the number 0, 1 or 2,R.sup.1 is C.sub.1 -C.sub.20 -alkyl andR.sup.2 is in each case hydrogen or C.sub.1 -C.sub.
    Type: Grant
    Filed: November 18, 1991
    Date of Patent: August 10, 1993
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Wolf-Dieter Muller, Frank Jaekel, Peter Naumann, Gerd Reinhardt
  • Patent number: 5153189
    Abstract: Sulfimidoperoxycarboxylic acids of the formula ##STR1## in which A is a group of the formula ##STR2## n is the number 0, 1 or 2, R.sup.1 is hydrogen, fluorine, chlorine, bromine, C.sub.1 -C.sub.20 - alkyl, C.sub.2 -C.sub.20 -alkenyl, aryl or C.sub.1 -C.sub.10 -alkylaryl,R.sup.2 is hydrogen, fluorine, chlorine, bromine or a group of the formula SO.sub.3 M, CO.sub.2 M or OSO.sub.3 M,M is hydrogen, an alkali metal or ammonium ion or the stoichiometric amount of an alkaline earth metal ion andX is C.sub.1 -C.sub.19 -alkylene or ortho-, meta- or para-arylene.These sulfimidoperoxycarboxylic acids are suitable as bleaches, oxidants or disinfectants.
    Type: Grant
    Filed: November 18, 1991
    Date of Patent: October 6, 1992
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Walter Rupp, Hanspeter Gethoffer, Gerd Reinhardt, Frank Jaekel