Patents by Inventor Karl Seib

Karl Seib 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).

  • s-Triazine derivatives and their use as sun screen agents
    Patent number: 4724137
    Abstract: Compounds of the formula I ##STR1## where the individual radicals R are identical or different and are each hydrogen, an alkali metal, or ammonium which is unsubstituted or substituted by organic radicals, or are each C.sub.1 -C.sub.20 -alkyl or a polyoxyethylene radical which contains from 1 to 10 ethylene oxide units and whose terminal OH group may be etherified by an alcohol of 1 to 3 carbon atoms, are used as sun screen agents.
    Type: Grant
    Filed: April 7, 1986
    Date of Patent: February 9, 1988
    Assignee: BASF Aktiengesellschaft
    Inventors: Udo Hoppe, Karl Seib, Paul Naegele, Roland Martin
  • S-triazine derivatives
    Patent number: 4617390
    Type: Grant
    Filed: June 4, 1985
    Date of Patent: October 14, 1986
    Assignee: BASF Aktiengesellschaft
    Inventors: Udo Hoppe, Karl Seib, Paul Naegele, Roland Martin
  • Water-soluble polymers having a low hygroscopicity
    Patent number: 4551512
    Abstract: Readily water-soluble, slightly hygroscopic terpolymers which consist of(a) from 10 to 40% by weight of vinylpyrrolidone,(b) from 20 to 50% by weight of vinyl acetate (VAc) or vinyl propionate and(c) from 10 to 40% by weight of hydroxyethyl acrylate, hydroxypropyl acrylate or hydroxyethyl methacrylate, which terpolymers are used as auxiliaries in the cosmetics and pharmaceuticals sectors.
    Type: Grant
    Filed: April 6, 1984
    Date of Patent: November 5, 1985
    Assignee: BASF Aktiengesellschaft
    Inventors: Ferdinand Straub, Axel Sanner, Karl Seib, Siegfried Lang
  • Cosmetic formulations containing oxyethylated diphenylamines as sun screen agents
    Patent number: 4438094
    Abstract: Cosmetic preparations are prepared containing from 0.1 percent to 15 percent by weight of oxyethylated diphenylamines as sun screen agents.
    Type: Grant
    Filed: April 30, 1982
    Date of Patent: March 20, 1984
    Assignee: BASF Aktiengesellschaft
    Inventors: Knut Oppenlaender, Rainer Strickler, Karl Seib, Paul Naegele
  • Preparation of a polyvinylpyrrolidone by heat treatment of an aqueous solution of a conventional polyvinylpyrrolidone
    Patent number: 4433112
    Abstract: A process for the preparation of high-viscosity polyvinylpyrrolidone, wherein an aqueous polyvinylpyrrolidone solution is subjected to a heat treatment in the presence of a water-insoluble peroxide and in the absence of oxygen, and thickeners containing the polyvinylpyrrolidone thus prepared.
    Type: Grant
    Filed: March 15, 1982
    Date of Patent: February 21, 1984
    Assignee: BASF Aktiengesellschaft
    Inventors: Ferdinand Straub, Heinrich Hartmann, Paul Naegele, Karl Seib
  • Polyalkoxycarbinol cinnamates and protective sun agents containing these compounds
    Patent number: 4399297
    Abstract: Compounds of the formula I ##STR1## where R is a polyethylene glycol radical of 3 to 60 chain members or a polypropylene glycol radical of 3 to 60 chain members or the radical of an ethylene oxide/propylene oxide block polymer of average molecular weight from 300 to 8,500, and R' is straight-chain or branched alkyl of 1 to 10 carbon atoms, or benzyl.
    Type: Grant
    Filed: July 2, 1981
    Date of Patent: August 16, 1983
    Assignee: BASF Aktiengesellschaft
    Inventors: Frank Thoemel, Karl Seib, Kurt Schneider, Paul Naegele
  • Preparation of a polyvinylpyrrolidone by heat treatment of an aqueous solution of a conventional polyvinylpyrrolidone
    Patent number: 4330451
    Abstract: A process for the preparation of high-viscosity polyvinylpyrrolidone, wherein an aqueous polyvinylpyrrolidone solution is subjected to a heat treatment in the presence of a water-insoluble peroxide and in the absence of oxygen, and thickeners containing the polyvinylpyrrolidone thus prepared.
    Type: Grant
    Filed: October 16, 1980
    Date of Patent: May 18, 1982
    Assignee: BASF Aktiengesellschaft
    Inventors: Ferdinand Straub, Heinrich Hartmann, Paul Naegele, Karl Seib
  • Manufacture of water-in-oil emulsions
    Patent number: 4145307
    Abstract: Water-in-oil emulsifiers are obtained by reacting fatty alcohols with epichlorohydrin and reacting the resulting glycidyl ethers with amine.
    Type: Grant
    Filed: May 5, 1978
    Date of Patent: March 20, 1979
    Assignee: BASF Aktiengesellschaft
    Inventors: Heinz Krapf, Knut Oppenlaender, Karl Seib
  • Production of water-in-oil emulsions
    Patent number: 4115314
    Abstract: A process for the manufacture of reaction products of fatty alcohols and epichlorohydrin, which have been reacted with polyhydric alcohols or their monoethers and may or may not have been further modified with alkylene oxides, the reaction products per se and emulsifiers, solubilizing agents and fat-like materials consisting of these products.
    Type: Grant
    Filed: December 29, 1976
    Date of Patent: September 19, 1978
    Assignee: BASF Aktiengesellschaft
    Inventors: Knut Oppenlaender, Karl Seib, Heinz Krapf
  • Process for preparing copolymers of acrylic acid or methacrylic acid and acrylic and methacrylic acid esters
    Patent number: 4085264
    Abstract: A process for the manufacture of copolymers by copolymerizing acrylic acid or methacrylic acid with esters of acrylic acid and methacrylic acid in the presence of polymerization initiators, in which methyl methacrylate, acrylic acid and/or methacrylic acid and a higher alkyl acrylate are copolymerized.
    Type: Grant
    Filed: April 4, 1977
    Date of Patent: April 18, 1978
    Assignee: BASF Aktiengesellschaft
    Inventors: Karl Seib, Wolfgang Schwarz, Hermann Gausepohl