Patents by Inventor Elke Fritz-Langhals

Elke Fritz-Langhals 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: 20210284666
    Abstract: Aminopropylalkoxysilanes of the formula H2N—CR2R3—CHR1—CH2—SiR4R5(OR6) ??I, are synthesized by hydrosilylating silazanes of the formulae and mixtures thereof, in the presence of a catalyst containing rhodium and/or iridium compounds, and then reacted with alcohol to form an aminopropylalkoxysilane.
    Type: Application
    Filed: February 6, 2018
    Publication date: September 16, 2021
    Applicant: WACKER CHEMIE AG
    Inventors: Elke FRITZ-LANGHALS, Richard WEIDNER
  • Publication number: 20210214367
    Abstract: Bicyclic guanidines are prepared by reacting dialkylenetriamines with dialkylcarbonates in the presence of a silane of the formula Si(ORx)oRY(4?o) ??(IV) and/or their partial hydrolysates, with the proviso that contain minimally one unit IV which is a monovalent optionally substituted hydrocarbon radial with 3 to 10 carbon atoms.
    Type: Application
    Filed: September 6, 2018
    Publication date: July 15, 2021
    Applicant: WACKER CHEMIE AG
    Inventors: Elke FRITZ-LANGHALS, Uwe SCHEIM
  • Publication number: 20210163510
    Abstract: Cationic silicon (ii) compounds are easily formed by reaction of ?-bonded cyclopentadienyl silicon (II) compound with a carbo-cation. The compounds have catalytic uses, particularly as a hydrosilylation catalyst.
    Type: Application
    Filed: April 13, 2017
    Publication date: June 3, 2021
    Applicant: WACKER CHEMIE AG.
    Inventor: Elke FRITZ-LANGHALS
  • Publication number: 20210017197
    Abstract: Siloxanes are prepared by reacting: a compound A with a compound B or a compound A with a compound C or a compound B with a compound C or a compound C alone, in the presence of a compound D at ?40° C., wherein compound A is a silane or a siloxane having at least one silicon-bonded hydrogen atom, compound B is a silane or a siloxane having at least one silicon-bonded alkoxy moiety, compound C is a silane or a siloxane having at least one silicon-bonded hydrogen atom and at least one silicon-bonded alkoxy moiety, and compound D is a cationic Si(II) compound.
    Type: Application
    Filed: October 6, 2017
    Publication date: January 21, 2021
    Applicant: WACKER CHEMIE AG
    Inventors: Elke FRITZ-LANGHALS, Richard WEIDNER
  • Patent number: 10730893
    Abstract: The invention relates to a hydrosilylatable mixture M containing: (A) a compound with at least one hydrogen atom directly bonded to Si, (B) a compound containing at least one carbon-carbon multiple bond, and (C) a compound containing at least one cationic Si(II) group. The invention also relates to a method for hydrosilylating the mixture M.
    Type: Grant
    Filed: March 10, 2017
    Date of Patent: August 4, 2020
    Assignee: WACKER CHEMIE AG
    Inventors: Elke Fritz-Langhals, Peter Jutzi, Richard Weidner
  • Publication number: 20200207919
    Abstract: Cationic silicon (II) compounds catalyze reaction of organosiloxanes bearing lateral Si—H functions to crosslink the polymers. Hydridosilanes may also be prepared by this reaction. The cationic silicon (II) compounds contain a silicon (II) moiety where silicon is ?-bonded to a cyclopentadienyl anion.
    Type: Application
    Filed: May 23, 2017
    Publication date: July 2, 2020
    Applicant: WACKER CHEMIE AG
    Inventor: Elke FRITZ-LANGHALS
  • Publication number: 20200055880
    Abstract: The invention provides a mixture M containing compound A which contains at least one hydrogen atom bound directly to Si, compound B which contains at least one carbon-carbon multiple bond, compound C which contains at least one cationic Si(II) group and compound D which contains at least one alkoxy group bound directly to silicon, and also a method for hydrosilylating the mixture M, wherein the mixture M is heated.
    Type: Application
    Filed: October 10, 2017
    Publication date: February 20, 2020
    Inventor: Elke Fritz-Langhals
  • Publication number: 20200023337
    Abstract: The invention relates to a method for absorbing liquids (P) containing compounds (V) selected from water and alkanols, the oxygen content of which in weight percentage is at least 27%, said content being present in the loan of hydroxy groups or hydroxy and ether groups, into a solid silicone-containing polymer (P) which contains at least one siloxane unit of the general formula I (R1b(X)cSiO[4?(b+c)]/2) and no units or at least one unit of the general formula II (R2aSiO4?a)/2), in which R1, R2, x, a, b, and c have the meanings described in claim 1, wherein the liquids (P) are brought into contact with the solid silicone-containing polymer (P).
    Type: Application
    Filed: February 3, 2017
    Publication date: January 23, 2020
    Inventors: Elke Fritz-Langhals, Richard Weidner
  • Publication number: 20190382421
    Abstract: Subject-matter of the invention is a hydrosilylatable mixture M comprising compound (C), which contains at least one carbocationic structure, and compound (A), which has at least one directly Si-bonded hydrogen atom and compound (B), which contains at least one carbon-carbon multiple bond, or compound (AB), where between the Si—H group and the nearest adjacent carbon atom of the carbon-carbon multiple bond there are at least 6 atoms, or compound (A) and compound (AB) or compound (B) and compound (AB), where the compounds (A), (B) and (AB) are defined in claim 1.
    Type: Application
    Filed: February 24, 2017
    Publication date: December 19, 2019
    Inventor: Elke Fritz-Langhals
  • Publication number: 20190345175
    Abstract: The invention relates to a method for producing hydridosilanes, in which siloxanes containing Si—H groups are reacted in the presence of a cationic Si(II) compound as a catalyst.
    Type: Application
    Filed: December 9, 2016
    Publication date: November 14, 2019
    Inventor: Elke Fritz-Langhals
  • Patent number: 10457696
    Abstract: The invention relates to a method for producing cationic silicon (II) compounds of general formula I (RaSi)+HA???(I) by reacting the silicon (II) compounds of general formula II (Rb?H)(RaSi)+??(II) with a hydride acceptor compound A, wherein Ra, (Rb?H) and A have the definitions described in claim 1; to the cationic silicon (II) compounds of general formula I and use thereof as catalysts.
    Type: Grant
    Filed: May 11, 2016
    Date of Patent: October 29, 2019
    Assignee: WACKER CHEMIE AG
    Inventor: Elke Fritz-Langhals
  • Patent number: 10351676
    Abstract: The present invention relates to a method for producing amino acid group-containing organosilicon compounds (O), wherein the epoxy group-bearing organosilicon compounds are reacted with a stoichiometric excess of amino acids or the salts thereof in the presence of an alcohol.
    Type: Grant
    Filed: May 30, 2016
    Date of Patent: July 16, 2019
    Assignee: Wacker Chemie AG
    Inventors: Elke Fritz-Langhals, Richard Weidner
  • Patent number: 10336866
    Abstract: The object of the invention is therefore to provide a method for the preparation of amino-functional polyorganosiloxanes, in which (A) organosiloxanes containing Si—OH groups are reacted with (B) at least stoichiometric amounts of monoalkoxy(aminoalkyl) silanes with respect to the Si—OH groups, wherein catalytically active additives selected from acid, base or metal-organic compound are used in amounts of less than 0.1 ppm acid, less than 30 ppm base and less than 0.4% metal-organic compound.
    Type: Grant
    Filed: April 6, 2016
    Date of Patent: July 2, 2019
    Assignee: Wacker Chemie AG
    Inventors: Elke Fritz-Langhals, Alfred Popp
  • Patent number: 10329313
    Abstract: (Meth)acrylate-functionalized silicon compounds are easily prepared by the reaction of a (meth)acryloyl-functionalized chlorosilane with an organosilicon compound having silicon-bonded hydroxy groups. The carbon atom adjacent to the resulting O—Si linkage is bonded to at least one further carbon, rendering the product stable to hydrolysis despite the C—O—Si linkage.
    Type: Grant
    Filed: August 9, 2016
    Date of Patent: June 25, 2019
    Assignee: WACKER CHEMIE AG
    Inventor: Elke Fritz-Langhals
  • Publication number: 20190152999
    Abstract: The invention relates to a method for producing cationic silicon(II) compounds of general formula I (RaSi)+HA???(I) by reacting the silicon(II) compounds of general formula II (Rb-H)(RaSi)+??(II) with a hydride acceptor compound A, wherein Ra, (Rb-H) and A have the definitions described in claim 1; to the cationic silicon(II) compounds of general formula I and use thereof as catalysts.
    Type: Application
    Filed: May 11, 2016
    Publication date: May 23, 2019
    Inventor: Elke FRITZ-LANGHALS
  • Publication number: 20190071459
    Abstract: The invention relates to a hydrosilylatable mixture M containing: (A) a compound with at least one hydrogen atom directly bonded to Si, (B) a compound containing at least one carbon-carbon multiple bond, and (C) a compound containing at least one cationic Si(II) group. The invention also relates to a method for hydrosilylating the mixture M.
    Type: Application
    Filed: March 10, 2017
    Publication date: March 7, 2019
    Inventors: Elke FRITZ-LANGHALS, Peter Jutzi, Richard Weidner
  • Publication number: 20180230273
    Abstract: The object of the invention is therefore to provide a method for the preparation of amino-functional polyorganosiloxanes, in which (A) organosiloxanes containing Si—OH groups are reacted with (B) at least stoichiometric amounts of monoalkoxy(aminoalkyl) silanes with respect to the Si—OH groups, wherein catalytically active additives selected from acid, base or metal-organic compound are used in amounts of less than 0.1 ppm acid, less than 30 ppm base and less than 0.4% metal-organic compound.
    Type: Application
    Filed: April 6, 2016
    Publication date: August 16, 2018
    Inventors: Elke FRITZ-LANGHALS, Alfred POPP
  • Publication number: 20180201633
    Abstract: (Meth)acrylate-functionalized silicon compounds are easily prepared by the reaction of a (meth)acryloyl-functionalized chlorosilane with an organosilicon compound having silicon-bonded hydroxy groups. The carbon atom adjacent to the resulting O—Si linkage is bonded to at least one further carbon, rendering the product stable to hydrolysis despite the C—O—Si linkage.
    Type: Application
    Filed: August 9, 2016
    Publication date: July 19, 2018
    Applicant: Wacker Chemie AG
    Inventor: Elke FRITZ-LANGHALS
  • Publication number: 20180155502
    Abstract: The invention provides a process for preparing organosilicon compounds (O) which contain free amino acid moieties and contain at least one unit of the general formula (I) and no unit or at least one unit of the general formula (II), R1b(X)cSiO[4?(b+c)]/2 (I), R2aSiO(4?a)/2 (II), in which epoxy-functional organosilicon compounds composed of at least one unit of the general formula (III) and no unit or at least one unit of the general formula (II), R1b(Z)cSiO[4?(b+c)]/2 (III), R2aSiO(4?a)/2 (II), where Z has the definition (formula A), are reacted with unprotected amino acids of the general formula (IV): H—NR7—(CH2)f—CR8R9—COOH, in the presence of aliphatic alcohols, where R1, R2, R4, R5, R6, R7, R8, R9, X, Z, Y, a, b, c, e and f have the definitions given in claim 1, the organosilicon compounds (O) which contain free amino acid moieties and are prepayable by the process, and uses for the organosilicon compounds (O).
    Type: Application
    Filed: May 30, 2016
    Publication date: June 7, 2018
    Inventors: Elke FRITZ-LANGHALS, Richard WEIDNER
  • Publication number: 20180118889
    Abstract: The present invention relates to a method for producing amino acid group-containing organosilicon compounds (O), wherein the epoxy group-bearing organosilicon compounds are reacted with a stoichiometric excess of amino acids or the salts thereof in the presence of an alcohol.
    Type: Application
    Filed: May 30, 2016
    Publication date: May 3, 2018
    Inventors: Elke FRITZ-LANGHALS, Richard WEIDNER