Patents by Inventor Rolf Kleber

Rolf Kleber 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: 4261839
    Abstract: A fiber preparation containing or consisting of a tertiary butyl ether of the general formula ##STR1## in which R.sub.1 is a straight-chain or branched C.sub.12 -C.sub.22 -alkyl or alkenyl group.
    Type: Grant
    Filed: March 19, 1979
    Date of Patent: April 14, 1981
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Rolf Kleber, Siegfried Billenstein
  • Patent number: 4259078
    Abstract: For fiber dressing an antistatic, heat-stable fiber lubricating agent, which contains a compound of the formula ##STR1## in which R.sub.1 denotes a C.sub.8 -C.sub.22 alkyl or alkenyl group, R.sub.2 denotes a C.sub.8 -C.sub.22 alkyl or alkenyl group or a C.sub.1 -C.sub.4 alkyl group and R.sub.3, R.sub.4 and R.sub.5 denote identical or different C.sub.1 -C.sub.4 alkyl groups is used.
    Type: Grant
    Filed: June 5, 1979
    Date of Patent: March 31, 1981
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Rolf Kleber, Heinz Muller
  • Patent number: 4257769
    Abstract: Use of quaternary ether amines of the formula I ##STR1## in which R.sub.1 is a saturated or unsaturated alkyl radical of from 12 to 24 carbon atoms, X and Y stand for hydrogen or methyl, but do not both represent methyl at the same time, n is a number of from 1 to 5, R.sub.2 and R.sub.3 stand for alkyl of from 1 to 4 carbon atoms, and A is the methosulfate, chloride, or the dimetho- or triethophosphate anion, as processing agents in the preparation and processing of native and synthetic fibers.
    Type: Grant
    Filed: October 2, 1979
    Date of Patent: March 24, 1981
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Rolf Kleber, Hans L. Panke, Erich Hoffmann
  • Patent number: 4197350
    Abstract: Quaternized amine-amide condensation products which are obtained by condensation of an amine of the formulaR.sub.1 R.sub.2 N--(CH.sub.2).sub.n --NH.sub.2with a lower alkanecarboxylic acid, and subsequent quaternization with a trialkyl phosphate. These products are suitable as fiber preparation agents.
    Type: Grant
    Filed: October 19, 1978
    Date of Patent: April 8, 1980
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Rolf Kleber, Wolfgang Wagemann
  • Patent number: 4177231
    Abstract: Process for improving the sliding properties of linear polyester material in spinning operations, which comprises treating this material after the drawing with a mixture of the following components:(a) 50 to 90% by weight of a condensation product of formula I ##STR1## in which R.sub.1 is C.sub.10 -C.sub.22 alkyl or alkenyl, y is a number of from 20 to 40, and x plus z have a weight of less than 20% by weight of the polypropylene oxide portion, and(b) 50 to 10% by weight of a compound of formulae II and/or III ##STR2## in which R.sub.2 and R.sub.3 are C.sub.8 -C.sub.18 alkyl or alkenyl, and x and/or y are numbers of from 5 to 20.
    Type: Grant
    Filed: March 7, 1978
    Date of Patent: December 4, 1979
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Rolf Kleber, Ulrich Cuntze
  • Patent number: 4173679
    Abstract: Fiber conditioning agent containing a reaction product of polyphosphoric acid and an oxalkylate of C.sub.8-18 alkyl- or alkenylcarboxylic acids with 1 to 22 ethylene oxide units and having a content of free polyethylene glycol of less than 2% by weight, the reaction product being present in acidic form or in the form of its alkali metal salts. These fiber conditioning agents are applied by conventional methods. They show good antistatic properties, are stable to heat and show good lubricating and sliding properties.
    Type: Grant
    Filed: December 20, 1977
    Date of Patent: November 6, 1979
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Rolf Kleber, Winfried Ehrl
  • Patent number: 4102793
    Abstract: A process for the conditioning of synthetic fibers, which comprises applying onto these fibers mixtures of alkane-phosphonic acid salts and alkane-phosphonic acid-semi-ester salts in a molar ratio of from 19:1 to 5:1.
    Type: Grant
    Filed: April 20, 1976
    Date of Patent: July 25, 1978
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Ulrich Cuntze, Gustav Dollinger, Rolf Kleber, Hans-Jerg Kleiner
  • Patent number: 4100078
    Abstract: Secondary etheramine acetates of the formula ##STR1## in which R is alkyl or alkenyl having from 7 to 24 carbon atoms, cyclohexyl or aryl optionally substituted by alkyl, X and Y represent hydrogen or methyl, but are not both methyl at the same time, and n is an integer in the range of from 2 to 20. They are obtained by reacting secondary etheramines of the general formula ##STR2## IN WHICH R, X, Y and n are defined as above, with glacial acetic acid. These compounds are used as lubricating agents in the preparation and processing of synthetic fibers.
    Type: Grant
    Filed: December 9, 1976
    Date of Patent: July 11, 1978
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Rolf Kleber, Willi Steckelberg
  • Patent number: 4095941
    Abstract: A process for the manufacture of synthetic staple fibers having a marked separating capability by preparing the synthetic fibers with fatty acid-amine-condensation products, which comprises preparing or conditioning the fibers, prior to the textile spinning processes, with fatty acid-hydroxy-alkyl-ethylene-diamine condensation products, the hydroxyalkyl radical or which shows 2 or 3 carbon atoms, and 1 to 2 identical or different radicals of saturated fatty acids having from 14 to 18 carbon atoms are present per mole of hydroxy-alkyl-ethylene-diamine.
    Type: Grant
    Filed: September 30, 1975
    Date of Patent: June 20, 1978
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Ulrich Cuntze, Gustav Dollinger, Rolf Kleber
  • Patent number: 4080301
    Abstract: Conditioning systems for polyester fibers consisting of from 40 - 60% by weight of a lubricating agent and from 60 to 40% by weight of an emulsifying mixture, the total conditioning system showing a loss by evaporation of less than 5% by weight at 220.degree. C within 1 hour, a viscosity of less than 200 cP (20.degree. C), and in dilution with water in the ratio of 2:1, 1:1 and 1:2, a viscosity of less than 150 cP, less than 500 cP and less than 250 cP (60.degree. C), respectively. These compositions are applied onto the fibers by known methods. They impart especially good sliding properties to the polyester fibers during texturizing.
    Type: Grant
    Filed: June 21, 1976
    Date of Patent: March 21, 1978
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Rolf Kleber, Gustav Dollinger
  • Patent number: 4014800
    Abstract: Amine oxides of the formula R.sup.1 R.sup.2 R.sup.3 N.fwdarw.O, in which R.sup.1 is medium- to long-chain alkyl, R.sup.2 is short- to long-chain alkyl or polyethyleneglycol, R.sup.3 is short chain alkyl or polyethyleneglycol, with the provisos that the polyethylene glycol groups together have not more than 10 glycol units, and that R.sup.3 is polyglycol if R.sup.2 is medium- to long-chain alkyl, are useful as antistatic agents in lubricating agents for synthetic fibers. The amine oxides are distinguished by a good thermal stability, are low-volatile, non-corrosive, compatible with usual lubricating agents and soluble in aqueous and oily lubricating compositions.
    Type: Grant
    Filed: May 22, 1974
    Date of Patent: March 29, 1977
    Assignee: Hoechst Aktiengesellschaft
    Inventor: Rolf Kleber
  • Patent number: 3985939
    Abstract: The invention relates to a process for imparting permanent antistatic properties to filaments, fibers and sheets of homo- and copolymers of acrylonitrile by incorporation of alkylolamine salts of branched alkylbenzenesulfonic acids, the alkylol radical(s) having from 2 to 4 and the alkyl radical from 9 to 20 carbon atoms, and the filaments, fibers and sheets manufactured according to this process. The articles manufactured in this process have permanent antistatic properties and a high resistance to washing and cleaning.
    Type: Grant
    Filed: September 9, 1975
    Date of Patent: October 12, 1976
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Rolf Kleber, Sigurd Wetzel
  • Patent number: 3956143
    Abstract: Peralkylated reaction products of .alpha.-olefin oxides of 8 to 18 carbon atoms with lower alkylene-diamines, dialkylene-triamines or trialkylene-tetramines are fiber lubricants which are capable of rendering the fibers antistatic.
    Type: Grant
    Filed: July 10, 1974
    Date of Patent: May 11, 1976
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Ulrich Cuntze, Gustav Dollinger, Rolf Kleber
  • Patent number: 3954633
    Abstract: Peralkylated propylenediamines having one long-chain alkyl or alkenyl group are antistatic agents for fibers.
    Type: Grant
    Filed: July 10, 1974
    Date of Patent: May 4, 1976
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Gustav Dollinger, Ulrich Cuntze, Rolf Kleber