Patents by Inventor Hanspeter Gethoffer

Hanspeter Gethoffer 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).

  • Imidoperoxycarboxylic acids, their use in detergents and cleaning agents
    Patent number: 5994284
    Abstract: Imidoperoxycarboxylic acids, processes for their preparation and their useImidopercarboxylic acids or salts thereof of the formula ##STR1## in which A denotes a group of the formula ##STR2## n denotes the number 0, 1 or 2, R.sup.1 denotes hydrogen, chlorine, bromine, C.sub.1 -C.sub.20 -alkyl, C.sub.2 -C.sub.20 -alkenyl, aryl, or alkylaryl,R.sup.2 denotes hydrogen, chlorine, bromine or a group of the formula --SO.sub.3 M, --CO.sub.2 M, CO.sub.3 M or OSO.sub.3 M,M denotes hydrogen, an alkali metal or ammonium ion or the equivalent of an alkaline earth metal ion andX denotes C.sub.3 -C.sub.19 -alkylene or arylene, preferably phenylene.These compounds are suitable as stable peroxide compounds in bleaching, oxidizing and cleaning agents.
    Type: Grant
    Filed: October 9, 1996
    Date of Patent: November 30, 1999
    Assignee: Clariant GmbH
    Inventors: Hanspeter Gethoffer, Gerd Reinhardt
  • Ureidoperoxycarboxylic acids and preparation and use thereof
    Patent number: 5292451
    Abstract: Compounds of the formula ##STR1## where y is 1 or 2,A is hydrogen, C.sub.1 -C.sub.2 -alkyl, aryl or a group of the formula ##STR2## if y is 1, or C.sub.2 -C.sub.20 -alkylene or arylene if y is 2, R.sup.1 and R.sup.2 can be identical or different and each is hydrogen, C.sub.1 -C.sub.20 -alkyl, aryl, haloaryl, alkoxyaryl or alkylaryl, or else R.sup.1 and R.sup.2 together are a C.sub.2 -C.sub.4 -alkylene radical,x is 0 or 1,B is a group of the formula ##STR3## n is from 1 to 20, m is 0, 1 or 2,R.sup.3 is C.sub.1 -C.sub.20 -alkyl andR.sup.4 is in each case hydrogen or C.sub.1 -C.sub.20 -alkyl.These compounds are suitable for use as bleaching, oxidizing or disinfecting agents.
    Type: Grant
    Filed: June 5, 1992
    Date of Patent: March 8, 1994
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Hanspeter Gethoffer, Gerd Reinhardt, Peter Naumann
  • Stable peroxycarboxylic acid granule comprising an imidoperoxycarboxylic acid or salt thereof
    Patent number: 5279757
    Abstract: Stable peroxycarboxylic acid granules composed essentially of (1) an imidoperoxycarboxylic acid or its salts 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, chlorine, bromine, C.sub.1 -C.sub.20 -alkyl, C.sub.1 -C.sub.20 -alkenyl, aryl or alkylaryl,R.sup.2 is hydrogen, 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 equivalent of an alkaline earth metal ion, andX is C.sub.1 -C.sub.19 -alkylene or arylene,(2) an inorganic sulfate and/or phosphate salt and/or a non-oxidizable surfactant as granulating auxiliaries and (3) a homo- or copolymer of (meth)acrylic acid or its salts or a copolymer of (meth)acrylic acid or its salts and other carboxylic acids polymerizable therewith as a film-forming coating substance.
    Type: Grant
    Filed: October 6, 1992
    Date of Patent: January 18, 1994
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Hanspeter Gethoffer, Gerd Reinhardt, Gerhard Noltner, Rudiger Funk
  • Stable peroxycarboxylic acid granules
    Patent number: 5246620
    Abstract: Stable peroxycarboxylic acid granules, consisting essentially of (1) an imidoperoxycarboxylic acid or a salt thereof of the formula ##STR1## wherein A is a group of the formulae ##STR2## n is the number 0, 1 or 2, R.sup.1 is hydrogen, chlorine, bromine, C.sub.1 -C.sub.20 -alkyl, C.sub.1 -C.sub.20 -alkenyl, aryl or alkylaryl,R.sup.2 is hydrogen, 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 one equivalent of an alkaline earth metal ion andX is C.sub.1 -C.sub.19 -alkylene or arylene, and(2) an inorganic sulfate and/or phosphate salt and/or a nonoxidizable surfactant as granulation auxiliary and a copolymer based on alkenylaminomethylenephosphonic acids as a film-forming coating substance.
    Type: Grant
    Filed: April 18, 1991
    Date of Patent: September 21, 1993
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Hanspeter Gethoffer, Gerd Reinhardt, Gerhard Noltner, Christoph Porz
  • Sulfimidoperoxycarboxylic acids
    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
  • Ureidoperoxycarboxylic acids and preparation and use thereof
    Patent number: 5149864
    Abstract: Compounds of the formula ##STR1## where y is 1 or 2,A is hydrogen, C.sub.1 -C.sub.2 -alkyl, aryl or a group of the formula ##STR2## if y is 1, or C.sub.2 -C.sub.20 -alkylene or arylene if y is 2, R.sup.1 and R.sup.2 can be identical or different and each is hydrogen, C.sub.1 -C.sub.20 -alkyl, aryl, haloaryl, alkoxyaryl or alkylaryl, or else R.sup.1 and R.sup.2 together are a C.sub.2 -C.sub.4 -alkylene radical,x is 0 or 1,B is a group of the formula ##STR3## n is from 1 to 20, m is 0, 1 or 2,R.sup.3 is C.sub.1 -C.sub.20 -alkyl andR.sup.4 is in each case hydrogen or C.sub.1 -C.sub.20 -alkyl.These compounds are suitable for use as bleaching, oxidizing or disinfecting agents.
    Type: Grant
    Filed: May 21, 1991
    Date of Patent: September 22, 1992
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Hanspeter Gethoffer, Gerd Reinhardt, Peter Naumann
  • Polymers, process for their preparation and their use as bleach activators having builder properties
    Patent number: 5133894
    Abstract: Polymers composed of 5 to 100% by weight of one or more acylals of the formula I ##STR1## and 95 to 0% by weight of one or more unsaturated carboxylic acids of the formula II ##STR2## the symbols R.sup.1, R.sup.2 R.sup.3, R.sup.4, R.sup.5, R.sup.6, R.sup.7, R.sup.8, R.sup.9 and M having the meanings given in the description. These polymers are suitable as bleach activators in detergent compositions and, at the same time, have a builder action.
    Type: Grant
    Filed: April 8, 1991
    Date of Patent: July 28, 1992
  • Process for the continuous preparation of imidoperoxycarboxylic acids
    Patent number: 5132431
    Abstract: A process for the continuous preparation of imidoperoxycarboxylic acids of the formula ##STR1## in which A is C.sub.2 -C.sub.4 -alkylene, phenylene, naphthylene or a group of the formula ##STR2## and R is a group of the formula --COOH, --SO.sub.3 H or --Cl, and X is C.sub.1 -C.sub.19 -alkylene or arylene, in which a solution of imidocarboxylic acids of the formula ##STR3## in sulfuric acid or methanesulfonic acid and an aqueous solution of hydrogen peroxide are continuously metered into a static mixer, then the solution of the imidoperoxycarboxylic acid obtained in this way is treated with water and the precipitated product is isolated.
    Type: Grant
    Filed: February 1, 1991
    Date of Patent: July 21, 1992
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Hermann Fuchs, Hanspeter Gethoffer, Walter Gilb
  • Imidoperoxycarboxylic acids, processes for their preparation and their use
    Patent number: 5061807
    Abstract: Imidopercarboxylic acids or salts thereof of the formula ##STR1## in which A denotes a group of the formula ##STR2## n denotes the number 0, 1 or 2, R.sup.1 denotes hydrogen, chlorine, bromine, C.sub.1 -C.sub.20 -alkyl, C.sub.2 -C.sub.20 -alkenyl, aryl, or alkylaryl,R.sup.2 denotes hydrogen, chlorine, bromine or a group of the formula --SO.sub.3 M, --CO.sub.2 M, CO.sub.3 M or OSO.sub.3 M.M denotes hydrogen, an alkali metal or ammonium ion or the equivalent of an alkaline earth metal ion andX denotes C.sub.3 -C.sub.19 -alkylene or arylene, preferably phenylene.These compounds are suitable as stable peroxide compounds in bleaching, oxidizing and cleaning agents.
    Type: Grant
    Filed: July 6, 1989
    Date of Patent: October 29, 1991
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Hanspeter Gethoffer, Gerd Reinhardt
  • Use of triacylated ethanolamines as liquid, water-miscible peroxide activators
    Patent number: 5045222
    Abstract: Use of triacylated ethanolamines as liquid, water-miscible peroxide activatorsTriacylated ethanolamines of the formula(RCO)(R.sub.1 CO)N-(CH.sub.2).sub.2 -OCOR.sub.2where R, R.sub.1 and R.sub.2, which may be identical to or different from one another, are each alkyl, alkenyl or aryl, and the total number of carbon atoms in the molecule is from 8 to 14, are liquid and readily water-miscible. Owing to these properties, they are very useful as peroxide activators in liquid detergent compositions.
    Type: Grant
    Filed: December 13, 1989
    Date of Patent: September 3, 1991
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Hajime Endo, Hanspeter Gethoffer, Fritz-Feo Grabley, Gerd Reinhardt