Patents by Inventor Eberhard Esselborn

Eberhard Esselborn 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).

  • Publication number: 20010025070
    Abstract: The invention relates to phosphoric esters of the general formula I 1
    Type: Application
    Filed: April 10, 2001
    Publication date: September 27, 2001
    Inventors: Tammo Boinowitz, Eberhard Esselborn, Arno Knebelkamp, Christian Psiorz, Stefan Silber, Stefan Stadtmuller, Ellen Wallhorn
  • Patent number: 6248839
    Abstract: The invention relates to polymethacrylate acid-polyalkylene oxide block copolymers, to a process for their preparation and to their use as dispersants or suspension stabilizers for pigments and fillers, e.g. for metal oxides in ceramic materials, for pigments in inks used in ink jet printing and for fillers in thermosplastic and thermoset polymers.
    Type: Grant
    Filed: February 3, 1998
    Date of Patent: June 19, 2001
    Assignee: Th. Goldschmidt AG
    Inventors: Eberhard Esselborn, Jürgen Fock, Arno Knebelkamp
  • Patent number: 6235813
    Abstract: The invention relates to block-polymethacrylate-block-polyalkylene oxide copolymers with terminal carboxylic acids, of the general formula I and to their use as a dispersing additive in aqueous pigment preparations and as a compatibilizer in SMC or BMC formulations.
    Type: Grant
    Filed: August 9, 1999
    Date of Patent: May 22, 2001
    Assignee: Th. GoldSchmidt AG
    Inventors: Petra Brandt, Eberhard Esselborn, Hans-Leo Karminski, Arno Knebelkamp, Christian Psiorz, Stefan Silber, Ellen Wallhorn
  • Patent number: 5990245
    Abstract: .alpha., .omega.-polymethacrylate glycols of the general formula ##STR1## are prepared and a method for their synthesis and their use as only or partial glycol component for the preparation of polyesters and polyurethanes and for the modification of alkyd and epoxide resins are described.
    Type: Grant
    Filed: September 24, 1997
    Date of Patent: November 23, 1999
    Assignee: Th. Goldschmidt AG
    Inventors: Eberhard Esselborn, Jurgen Fock
  • Patent number: 5693848
    Abstract: .alpha.,.omega.-polymethacrylate dicarboxylic acids of the general formula ##STR1## wherein R.sup.1 is an optionally halogenated alkyl group with 1 to 22 carbon atoms, wherein the R1 group can assume different meanings in the polymer molecule,R.sup.2 is the group of a known chain transfer agent, which has a terminal --COOH croup anda has a value not less than 4. The invention furthermore relates to the synthesis of these compounds and their use as sole or partial components for the synthesis or modification of polyepoxides, polyesters, polyamides, alkyd resins or polyurethanes.
    Type: Grant
    Filed: October 18, 1995
    Date of Patent: December 2, 1997
    Assignee: Th. Goldschmidt AG
    Inventors: Eberhard Esselborn, Jurgen Fock
  • Patent number: 5633325
    Abstract: Novel polymethacrylate esters are prepared; the ester groups of which in the .alpha. and optionally also in the .omega. position differ from the ester groups in the chain. The invention furthermore relates to a method for the synthesis of these compounds by transesterification under selected method conditions.
    Type: Grant
    Filed: January 29, 1996
    Date of Patent: May 27, 1997
    Assignee: Th. Goldschmidt AG.
    Inventors: Eberhard Esselborn, Jurgen Fock
  • Patent number: 5583184
    Abstract: Novel polymethacrylate esters are prepared; the ester groups of which in the .alpha. and optionally also in the .omega. position differ from the ester groups in the chain. The invention furthermore relates to a method for the synthesis of these compounds by transesterification under selected method conditions.
    Type: Grant
    Filed: July 12, 1995
    Date of Patent: December 10, 1996
    Assignee: TH. Goldschmidt AG.
    Inventors: Eberhard Esselborn, J urgen Fock
  • Patent number: 5571872
    Abstract: Novel polymethacrylate esters are prepared; the ester groups of which in the .alpha. and optionally also in .omega. the position differ from the ester groups in the chain. The invention furthermore relates to a method for the synthesis of these compounds by transesterification under selected method conditions.
    Type: Grant
    Filed: January 19, 1996
    Date of Patent: November 5, 1996
    Assignee: Th. Goldschmidt AG
    Inventors: Eberhard Esselborn, Jurgen Fock
  • Patent number: 5523373
    Abstract: The invention relates to polymethacrylate ester/polysiloxane block copolymer of the ABA or AB type, A being a polymethacrylate ester block and B a polysiloxane block. The invention furthermore relates to a method for the synthesis of such block copolymers as well as to a method to modify synthetic resins, particularly those based on (meth)acrylates, by adding an effective amount of the inventive block copolymer. The invention also relates to the block copolymer as additives for organic lacquer and varnish systems.
    Type: Grant
    Filed: April 18, 1995
    Date of Patent: June 4, 1996
    Assignee: Th. Goldschmidt AG
    Inventors: Eberhard Esselborn, Jurgen Fock
  • Patent number: 5338485
    Abstract: Polyacrylate esters with long-chain hydrocarbon and polyoxyalkylene groups are disclosed, which are prepared by transesterification of polyacrylate alkyl esters, the alkyl groups of which have 1 to 4 carbon atoms and which were obtained by free radical polymerization, wherein the transesterification is carried out with a mixture of selected alcohols and polyoxyalkylene monools. Compared to products obtained by copolymerization, the transesterification products are largely free of undesirable low molecular weight components, have a narrow molecular weight distribution and exhibit excellent surfactant properties. They are useful especially as W/O emulsifiers for natural and synthetic oils.
    Type: Grant
    Filed: February 27, 1992
    Date of Patent: August 16, 1994
    Assignee: The Goldschmidt AG
    Inventors: Jurgen Fock, Eberhard Esselborn, Dietmar Schaefer
  • Patent number: 5296573
    Abstract: Polyacrylate esters with long-chain alkoxylated hydrocarbonoxy groups are disclosed which can be obtained by the transesterification of polyacrylate esters with polyoxyalkylene monools, wherein the polyacrylate esters, up to 50% of which can be replaced by the corresponding methacrylate esters, have been obtained by free radical polymerization and wherein the polyoxyalkylene monools have the average formulaR.sup.1 O(C.sub.n H.sub.2n O--).sub.x HwhereinR.sup.1 is an alkyl, alkenyl or alkylphenyl group,n has an absolute value of 2, 3 or 4 and an average value of 2.0 to 2.5 andx is 10 to 200.The compounds, which can be used as emulsifiers, solubilizers and for thickening aqueous solutions which contain anionic surfactants, particularly in cosmetics and for personal grooming, are distinguished by a content of low molecular weight components, which is smaller compared to that of products obtained by copolymerization.
    Type: Grant
    Filed: January 31, 1991
    Date of Patent: March 22, 1994
    Assignee: Th. Goldschmidt AG
    Inventors: Eberhard Esselborn, Jurgen Fock, Gotz Koerner, Dietmar Schaefer
  • Patent number: 5145914
    Abstract: Polyacrylate esters with ammonium salt groups obtained by the transesterification of alkyl polyacrylates produced by free radical polymerization are disclosed, wherein the alkyl groups of the acrylate esters have 1 to 8 carbon atoms, up to 50% of the acrylate esters can be replaced by the corresponding methacrylate esters and the transesterification is carried out witha) compounds of the formula ##STR1## b) saturated or unsaturated aliphatic alcohols having 8 to 22 carbon atoms or alkoxylated alkylphenols having 9 to 27 carbon atoms in the alkylphenol group,wherein the molar ratio of component a) to component b) is 1:9 to 9:1, in such amount that 5 to 70% of the ester groups are transesterified and subsequently, the transesterification product is transformed into a salt.
    Type: Grant
    Filed: March 7, 1991
    Date of Patent: September 8, 1992
    Assignee: TH. Goldschmidt AG
    Inventors: Eberhard Esselborn, Jurgen Fock, Helmut Lammerting
  • Patent number: 5133898
    Abstract: Polyacrylate esters with long-chain hydrocarbon and polyoxyalkylene groups are disclosed, which are prepared by transesterification of polyacrylate alkyl esters, the alkyl groups of which have 1 to 4 carbon atoms and which were obtained by free radical polymerization, wherein the transesterification is carried out with a mixture of selected alcohols and polyoxyalkylene monools. Compared to products obtained by copolymerization, the transesterification products are largely free of undesirable low molecular weight components, have a narrow molecular weight distribution and exhibit excellent surfactant properties. They are useful especially as W/O emulsifiers for natural and synthetic oils.
    Type: Grant
    Filed: January 29, 1990
    Date of Patent: July 28, 1992
    Assignee: Th. Goldschmidt AG
    Inventors: Jurgen Fock, Eberhard Esselborn, Dietmar Schaefer
  • Patent number: 5115040
    Abstract: Polyacrylate esters with quaternary ammonium groups are disclosed. The esters are obtained by transesterifying alkyl polyacrylate esters with dialkylaminoalkanols, followed by quaternization.The polymers are free of physiologically questionable components and can therefore be used for the preparation of cosmetic products, preferably for hair cosmetics. The polymers furthermore are suitable for finishing fibers or of textile products.The invention is furthermore directed to polyacrylate esters with tertiary amino groups, which are formed as intermediates in the preparation of polyacrylate esters with quaternary ammonium groups.
    Type: Grant
    Filed: June 20, 1991
    Date of Patent: May 19, 1992
    Assignee: Th. Goldschmidt AG
    Inventors: Jurgen Fock, Dietmar Schaefer, Eberhard Esselborn
  • Patent number: 5115039
    Abstract: Polyacrylate esters with quaternary ammonium groups are disclosed. The esters are obtained by transesterifying alkyl polyacrylate esters with a mixture of dialkylaminoalkanols and saturated or unsaturated aliphatic alcohols with 8 to 22 carbon atoms, followed by quaternization.The polymers are free of physiologically questionable components and can therefore be used for the preparation of cosmetic products, preferably for hair cosmetics. The polymers furthermore are suitable for finishing fibers or of textile products.The invention is furthermore directed to polyacrylate esters with tertiary amino groups, which are formed as intermediates in the preparation of polyacrylate esters with quaternary ammonium groups.
    Type: Grant
    Filed: June 5, 1991
    Date of Patent: May 19, 1992
    Assignee: Th. Goldschmidt AG
    Inventors: Jurgen Fock, Dietmar Schaefer, Eberhard Esselborn
  • Patent number: 5087687
    Abstract: Polyethers are disclosed which contain perfluoroalkyl groups and have the average formula ##STR1## wherein R.sup.1 is the same or different in the polymer mixture and represents hydrogen or a fluoro group,n has an average value of 4 to 12,a has an average value of 0 to 4,m has an average value of 2 to 18,x has an average value of 2 to 50 andy has an average value of 0 to 3.A method for the synthesis of the new polyols, which are usefull as surfactants and, with respect to the compounds of formula I, as polyol components in the synthesis of polyurethanes, is also disclosed.
    Type: Grant
    Filed: January 26, 1990
    Date of Patent: February 11, 1992
    Assignee: Th. Goldschmidt AG
    Inventors: Jurgen Fock, Eberhard Esselborn
  • Patent number: 5086142
    Abstract: A copolymer is disclosed which acts as a thickening agent for aqueous preparations having a pH of more than 5.5. The copolymer is obtainable by emulsion polymerization in an aqueous medium, at a pH of 2.5 to 5, in the presence of an initiator forming free radicals, at a temperature of 60.degree. to 95.degree. C. of10 to 50% by weight of acrylic or methacrylic acid,25 to 75% by weight of a nonionic vinyl monomer and2 to 50% by weight of a macromonomer of the formulaCH.sub.2 .dbd.CR--CH.sub.2 --O--(C.sub.n H.sub.2n O).sub.a (C.sub.m H.sub.2m O).sub.b (C.sub.p H.sub.2p O).sub.c HwhereinR is H or CH.sub.3n, p are the same or different and in each case are 2 or 3, with the proviso that n and p have a value of not more than 2.3 in the average molecule,m=a whole number from 12 to 18a=10 to 100,b=2 to 10,c=0 to 10 andwherein the sum of the monomers amounts to 100% by weight.
    Type: Grant
    Filed: January 31, 1991
    Date of Patent: February 4, 1992
    Assignee: Th. Goldschmidt AG
    Inventors: Jurgen Fock, Eberhard Esselborn
  • Patent number: 5057580
    Abstract: Polyacrylate esters with quaternary ammonium groups are disclosed. The esters are obtained by transesterifying alkyl polyacrylate esters with a mixture of dialkylaminoalkanols and saturated or unsaturated aliphatic alcohols with 8 to 22 carbon atoms, followed by quaternization.The polymers are free of physiologically questionable components and can therefore be used for the preparation of cosmetic products, preferably for hair cosmetics. The polymers furthermore are suitable for finishing fibers or of textile products.The invention is furthermore directed to polyacrylate esters with tertiary amino groups, which are formed as intermediates in the preparation of polyacrylate esters with quaternary ammonium groups.
    Type: Grant
    Filed: December 8, 1989
    Date of Patent: October 15, 1991
    Assignee: Th. Goldschmidt AG
    Inventors: Jurgen Fock, Dietmar Schaefer, Eberhard Esselborn
  • Patent number: 5057579
    Abstract: Polyacrylate esters with quaternary ammonium groups are disclosed. The esters are obtained by transesterifying alkyl polyacrylate esters with dialkylaminoalkanols, followed by quaternization.The polymers are free of physiologically questionable components and can therefore be used for the preparation of cosmetic products, preferably for hair cosmetics. The polymers furthermore are suitable for finishing fibers or of textile products.The invention is furthermore directed to polyacrylate esters with tertiary amino groups, which are formed as intermediates in the preparation of polyacrylate esters with quaternary ammonium groups.
    Type: Grant
    Filed: December 8, 1989
    Date of Patent: October 15, 1991
    Assignee: Th. Goldschmidt AG
    Inventors: Jurgen Fock, Dietmar Schaefer, Eberhard Esselborn
  • Patent number: 4880906
    Abstract: A finishing agent for finishing fibers or fiber products is disclosed. The agent is a mixture of the following components:(a) 34 to 99% by weight of a polymer of the general formula ##STR1## in which R.sup.1 is a z-hybric aliphatic alcohol, z=2 to 9, m=20 to 75, n=0 to 10, p=0 to 3,(b) 0 to 55% by weight of a copolymer, obtained by copolymerization of(b.sub.1) one mole of a macromonomer of the general formula ##STR2## in which q=5 to 75, r=0 to 10, s=0 to 3, with (b.sub.2) 2 to 12 moles of a vinyl ester of the general formula CH.sub.2 .dbd.CHOCOR.sup.2, in which R.sup.2 is an alkyl group with 1 to 4 carbon atoms,(b.sub.3) 1 to 6 moles of N-vinylpyrrolidone,(b.sub.4) 0 to 6 moles of an acrylate or methacrylate ester of the general formula CH.sub.3 .dbd.CR.sup.3 --COOR.sup.4, in which R.sup.3 .dbd.H or CH.sub.3, R.sup.4 is an alkyl group with 1 to 4 carbon atoms, the quotient of the average molecular weight of the monomer (b.sub.1) and the number of moles of the monomers (b.sub.2), (b.sub.3) and (b.sub.
    Type: Grant
    Filed: July 15, 1988
    Date of Patent: November 14, 1989
    Assignee: Th. Goldschmidt AG
    Inventors: Eberhard Esselborn, Jurgen Fock