Patents by Inventor Albert Frings
Albert Frings 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).
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Patent number: 7501534Abstract: A process for the preparation or organosilanes of the formula I by reacting a (haloorganyl)alkoxysilane of the formula II with a sulphurization reagent selected from the group consisting or alkali metal hydrogen sulphide, alkali metal sulphide Me2S, alkali metal polysulphide Me2Sg and any desired combinations thereof, and optionally additionally with sulphur and/or with H2S, in an alcohol, the Me2S or Me2Sg containing more than 10% by weight of water and the alkali metal hydrogen sulphide containing more than 3% by weight of water.Type: GrantFiled: March 7, 2006Date of Patent: March 10, 2009Assignee: Degussa AGInventors: Karsten Korth, Philipp Albert, Ingo Kiefer, Albert Frings, Louis Janssens, Horst Mertsch
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Patent number: 7371881Abstract: A process for the preparation of an organosilicon compound of the formula (I) (R1R2R3SiR4)2Sx??(I) by reacting haloalkoxysilanes of the general formula (II) R1R2R3SiR4X??(II) with a dry polysulphide of the general formula (III) M2Sz??(III) and/or dry sulphide of the general formula IV M2S??(IV) and optionally sulphur in an organic solvent, the organic solvent being removed from the resulting suspension, the mixture containing the organosilicon compound of the general formula (I) and the solid MX being mixed with water containing at least one buffer, and the resulting phases being separated.Type: GrantFiled: August 2, 2006Date of Patent: May 13, 2008Assignee: Degussa AGInventors: Albert Frings, Louis Janssens, Stefan Lotter, Ulrich Deschler, Alfred Alig
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Publication number: 20070066841Abstract: A process for the preparation of an organosilicon compound of the formula (I) (R1R2R3SiR4)2Sx??(I) by reacting haloalkoxysilanes of the general formula (II) R1R2R3SiR4X??(II) with a dry polysulphide of the general formula (III) M2Sz??(III) and/or dry sulphide of the general formula IV M2S??(IV) and optionally sulphur in an organic solvent, the organic solvent being removed from the resulting suspension, the mixture containing the organosilicon compound of the general formula (I) and the solid MX being mixed with water containing at least one buffer, and the resulting phases being separated.Type: ApplicationFiled: August 2, 2006Publication date: March 22, 2007Inventors: Albert Frings, Louis Janssens, Stefan Lotter, Ulrich Deschler, Alfred Alig
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Publication number: 20060204422Abstract: A process for the preparation or organosilanes of the formula I by reacting a (haloorganyl)alkoxysilane of the formula II with a sulphurization reagent selected from the group consisting or alkali metal hydrogen sulphide, alkali metal sulphide Me2S, alkali metal polysulphide Me2Sg and any desired combinations thereof, and optionally additionally with sulphur and/or with H2S, in an alcohol, the Me2S or Me2Sg containing more than 10% by weight of water and the alkali metal hydrogen sulphide containing more than 3% by weight of water.Type: ApplicationFiled: March 7, 2006Publication date: September 14, 2006Inventors: Karsten Korth, Philipp Albert, Ingo Kiefer, Albert Frings, Louis Janssens, Horst Mertsch
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Patent number: 6020448Abstract: N-[.omega.-(methyl),.omega.-(silyl)]alkyl-N-organocarboxamides, oligomeric and polycondensed Si-containing compounds thereof, or mixtures of the corresponding monomeric, oligomeric and polycondensed Si-containing compounds. These materials are useful as, for example, adhesion promoters and for coating surfaces.Type: GrantFiled: June 17, 1998Date of Patent: February 1, 2000Assignee: Huels AktiengesellschaftInventors: Peter Jenkner, Albert Frings, Michael Horn, Jaroslaw Monkiewicz, Burkhard Standke
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Patent number: 5932757Abstract: A mixture of oligomers of alkylalkoxysilanes condensed in the chain and/or cyclic form, said mixture of oligomers containing less than 2% by weight of free alcohols and the condensed alkoxysilanes satisfying formula I: ##STR1## wherein R is an alkyl group having 3 to 18 carbon atoms, and each R' is a member (i) selected from the group consisting of methyl, ethyl or hydrogen, or is (ii) methyl or hydrogen, or is (iii) ethyl or hydrogen, the degree of oligomerization being in the range 2.ltoreq.x.ltoreq.20 and the quotient of the molar ratio ?Si/alkoxy group!.gtoreq.1; and/orsatisfying formula II: ##STR2## in which R is an alkyl group having 3 to 18 carbon atoms, and each R' is a member (i) selected from the group consisting of methyl, ethyl or hydrogen, or is (ii) methyl or hydrogen or is (iii) ethyl or hydrogen, the degree of oligomerization being x.gtoreq.3 and the quotient of the molar ratio ?Si/alkoxy group!.gtoreq.1.Type: GrantFiled: June 17, 1997Date of Patent: August 3, 1999Assignee: Huls AktiengesellschaftInventors: Burkhard Standke, Roland Edelmann, Albert Frings, Michael Horn, Peter Jenkner, Ralf Laven, Jaroslaw Monkiewicz, Lothar Elfenthal, Hans-Hermann Luginsland
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Patent number: 5679147Abstract: Water-based organopolysiloxane-containing compositions which are essentially free from organic solvents, have a flashpoint above 80.degree. C., and essentially liberate no alcohols by hydrolysis on dilution with water are obtainable by mixing water-soluble aminoalkylalkoxysilanes with alkyltrialkoxysilanes and/or dialkyldialkoxysilanes and/or mixtures of alkyltrialkoxysilanes and dialkyldialkoxysilanes which are not water-soluble, adding water to the mixture, adjusting the pH of the reaction mixture to a value of between 1 and 8 and removing any alcohol already present and/or formed during the reaction. Such compositions are especially useful for hydrophobicizing the surface of building materials such as brick, concrete, lime sand brick, and mortar.Type: GrantFiled: December 8, 1995Date of Patent: October 21, 1997Assignee: Huels AktiengesellschaftInventors: Burkhard Standke, Christine Fliedner, Albert Frings, Michael Horn, Hans-Joachim Koetzsch, Jaroslaw Monkiewicz, Hans-Guenther Srebny
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Patent number: 5654459Abstract: Alkylhydrogenchlorosilanes of formula I:R.sub.x HSiCl.sub.y (I)wherein R are identical or different alkyl radicals, x is 1 or 2 and y is 1 or 2 and the sum of x and y is equal to 3, are prepared by comproportionating alkylchlorosilanes of formula II:R.sub.a SiCl.sub.n (II)wherein R denotes identical or different alkyl radicals, a is 1 or 2 and n is 2 or 3 and the sum of a and n is equal to 4 with hydrogenchlorosilanes of formula III:R.sub.b H.sub.c SiCl.sub.4-b-c (III)wherein R denotes identical or different alkyl radicals, b is 0, 1, 2 or 3 and c is 1, 2, 3 or 4 and the sum of b and c is equal to or smaller than 4, in the presence of a catalyst saturated with a hydrogen halide.Type: GrantFiled: June 7, 1996Date of Patent: August 5, 1997Assignee: Huels AktiengesellschaftInventors: Frank Kropfgans, Albert Frings, Michael Horn, Peter Jenkner, Hans-Joachim Koetzsch, Jaroslaw Monkiewicz, Claus-Dietrich Seiler, Hans-Guenther Srebny, Burkhard Standke
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Patent number: 5646325Abstract: 3-Acryloyloxypropylalkoxysilanes of formula I:CH.sub.2 .dbd.C(R)C(O)O(CH.sub.2).sub.3 Si(R.sup.1).sub.a (OR.sup.2).sub.3-a (I)are prepared by reacting a hydridosilane of formula II:HSi(R.sup.1).sub.a (OR.sup.2).sub.3-a (II)with an allyl ester of formula III:CH.sub.2 .dbd.C(R)C(O)OCH.sub.2 CH.dbd.CH.sub.2 (III),where R is a hydrogen atom or a methyl group, R.sup.1 and R.sup.2 are each C.sub.1 to C.sub.6 alkyl groups or phenyl groups, and a is 0, 1 or 2, in the presence of a platinum catalyst.Type: GrantFiled: September 25, 1995Date of Patent: July 8, 1997Assignee: Huels AktiengesellschaftInventors: Jaroslaw Monkiewicz, Albert Frings, Michael Horn, Peter Jenkner, Hans-Joachim Koetzsch, Frank Kropfgans, Claus-Dietrich Seiler, Hans-Guenther Srebny, Burkhard Standke
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Patent number: 5629400Abstract: The invention relates to water-based organopolysiloxane containing compositions which are essentially free from organic solvents, have a flash point above 70.degree. C. and essentially liberate no alcohols by hydrolysis on dilution with water. The organopolysiloxane-containing compositions according to the invention are obtainable by mixing M mol of water-insoluble organotrialkoxysilanes with Q mol of water-soluble aminoalkylalkoxysilanes in a molar ratio of 0<M/Q.ltoreq.2, adding water to the mixture, adjusting the pH of the reaction mixture to a value of between 1 and 8 and removing alcohol already present and/or formed during the reaction. The process for the preparation of the organopolysiloxane-containing compositions according to the invention and their use are also disclosed.Type: GrantFiled: December 6, 1995Date of Patent: May 13, 1997Assignee: Huels AktiengesellschaftInventors: Burkhard Standke, Albert Frings, Michael Horn, Hans-Joachim Kotzsch, Frank Kropfgans, Jaroslaw Monkiewicz, Claus-Dietrich Seiler, Jim Steinmetz
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Patent number: 5616762Abstract: 3-Halo- and pseudohalo-alkylsilane esters are prepared by reacting an allyl X compound or a compound containing an allyl X structure with a hydridosilane ester in the presence of an iridium catalyst prepared under specific conditions and/or the reaction medium containing a 0.01-100 mol % excess of the allyl X compound or compound containing the allyl X unit relative to the amount of hydridosilane ester reactant.Type: GrantFiled: October 25, 1995Date of Patent: April 1, 1997Assignee: Huels AktiengesellschaftInventors: Frank Kropfgans, Albert Frings, Michael Horn, Hans-Joachim Koetzsch, Jaroslaw Monkiewicz, Claus-Dietrich Seiler, Hans-Guenther Srebny, Burkhard Standke
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Patent number: 5536860Abstract: Aminopropylalkoxysilanes of formula (I):R.sup.2 R.sup.3 NCH.sub.2 CHR.sup.4 CH.sub.2 Si(OR).sub.3-n (R.sup.1).sub.n(I)are prepared by reacting hydrogensilanes of formula (II):HSi(OR).sub.3n (R.sup.1).sub.n (II)with an amine of formula (III):R.sup.2 R.sup.3 NCH.sub.2 CR.sup.4 .dbd.CH.sub.2 (III),where R and R.sup.1 are alkyl radicals having from 1 to 8 carbon atoms and n is equal to 0, 1 or 2 andR.sup.2 and R.sup.3 are hydrogen, alkyl radicals having from 1 to 8 carbon atoms, .omega.-alkenyl radicals having from 3 to 8 carbon atoms or combinations thereof, andR.sup.4 is hydrogen or an alkyl radical having from 1 to 8 carbon atoms, in the presence of a shaped polymeric rhodium complex catalyst containing organosiloxanemonophenylphosphine ligands.Type: GrantFiled: October 4, 1995Date of Patent: July 16, 1996Assignee: Huels AktiengesellschaftInventors: Jaroslaw Monkiewicz, Albert Frings, Michael Horn, Hans-Joachim Koetzsch, Frank Kropfgans, Claus-Dietrich Seiler, Hans-Guenther Srebny, Burkhard Standke
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Patent number: 5527937Abstract: Hydrogenalkoxysilanes are prepared by direct reaction of finely divided metallic silicon with alcohols in the presence of copper-containing catalysts in a heat-transfer oil comprising tritoluenes, tetratoluenes or mixtures thereof at from 100.degree. to 350.degree. C.Type: GrantFiled: October 4, 1995Date of Patent: June 18, 1996Assignee: Huels AktiengesellschaftInventors: Burkhard Standke, Albert Frings, Michael Horn, Hans-Joachim Koetzsch, Frank Kropfgans, Jaroslaw Monkiewicz, Claus-Dietrich Seiler, Hans-Guenther Srebny
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Patent number: 5187291Abstract: Acyloxysilanes and carboxylic acid chlorides can be prepared simultaneously and continuously from organochlorosilanes and monocarboxylic acid anhydrides. Catalytically active amounts of organic bases soluble in the reaction mixture, their salts or organic acid amides are employed here.Type: GrantFiled: April 14, 1992Date of Patent: February 16, 1993Assignee: Huls AktiengesellschaftInventors: Claus-Dietrich Seiler, Reinhold Schork, Albert Frings, Hans-Joachim Kotzsch, Hartwig Rauleder
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Patent number: 5087714Abstract: Discoloration of vinylacetoxysilanes is prevented by adding thereto 25 to 500 ppm, based on the amount of vinylacetoxysilane, of 3,5-di-tert.-butylpyrocatechol, 2,6-di-tert.-butyl-4-methylphenol, 2-mercaptobenzimidazole or a mixture thereof.Type: GrantFiled: June 3, 1991Date of Patent: February 11, 1992Assignee: Huels AktiengesellschaftInventors: Claus-Dietrich Seiler, Hartwig Rauleder, Albert Frings, Hans-Joachim Kotzsch