Patents by Inventor Esteban Mejia
Esteban Mejia 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: 11883803Abstract: The present invention is directed to supported catalyst having utility in the polymerization and co-polymerization of epoxide monomers, said supported catalyst having the general Formula (I): [DMCC]*b Supp??(I) wherein: [DMCC] denotes a double metal cyanide complex which comprises a double metal cyanide (DMC) compound, at least one organic complexing agent and a metal salt; Supp denotes a hydrophobic support material; and, b represents the average proportion by weight of said support material, based on the total weight of [DMCC] and Supp, and is preferably in the range 1 wt. %?b?99 wt. %.Type: GrantFiled: December 16, 2020Date of Patent: January 30, 2024Assignee: Henkel AG & Co. KGaAInventors: Jan-Erik Damke, Johann Klein, Marion Marquardt, Esteban Mejia, Udo Kragl
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Patent number: 11879037Abstract: The present invention relates a hydroxyl-functionalized unimodal polysiloxane polyalkyleneglycol brush copolymer of the structure [A(-X—B)]s, wherein: A represents said polysiloxane backbone; B represents said polyalkyleneglycol side chain; X is a linker group characterized by including the moiety Si—C—C— of which said Si is a part of the polysiloxane backbone A; and s is an integer of from 1 to 100, wherein the polysiloxane backbone A contains less than 500 ppm mol % of SiH moiety based on the total moles of the silicon atom which constitutes the polysiloxane backbone, and said copolymer has a polydispersity index of from 1.3 to 5.0; and a method for producing said hydroxyl-functionalized unimodal polysiloxane polyalkyleneglycol brush copolymer.Type: GrantFiled: June 3, 2021Date of Patent: January 23, 2024Assignee: Henkel AG & Co. KGaAInventors: Andrea Gutacker, Johann Klein, Annika Dietrich, Esteban Mejia, Therese Hemery, Nayereh Mohebbati
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Publication number: 20230167138Abstract: The invention relates to silane compounds of the general formula (I) as defined herein containing at least one heteroatom bridged to a silicon atom via a sp2-hybridized quaternary carbon atom, a process for preparing the silane compounds, and the use of the silane compounds as end-capping agent, crosslinker, and/or adhesion promoter in curable compositions.Type: ApplicationFiled: January 30, 2023Publication date: June 1, 2023Inventors: Ligang Zhao, Sebastien Lanau, Andrea Gutacker, Johann Klein, Ralf Dunekake, Markus Bonigut, Theresia Kohler, Esteban Mejia, Niklas Schafhausen
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Publication number: 20230117393Abstract: The invention relates to a bi-functionalized polysiloxane brush copolymer comprising at least one hydroxyl-terminated polyalkyleneglycol side chain and at least one onium-functionalized side chain as defined herein, and a method for preparing the bi-functionalized polysiloxane brush copolymer, a curable composition comprising the bi-functionalized polysiloxane brush copolymer and its use.Type: ApplicationFiled: December 21, 2022Publication date: April 20, 2023Inventors: Andrea Gutacker, Ligang Zhao, Johann Klein, Esteban Mejia, Annika Dietrich
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Patent number: 11560445Abstract: The invention relates to a silylated polyurethane obtainable by reacting: d) at least one polyol having a number average molecular weight of from 1000 to 50,000 g/mol; e) at least one polyisocyanate, preferably diisocyanate; and f) at least one tertiary hydroxyl functional alkoxysilane of the general formula (I) wherein R1 is selected from the group consisting of hydrogen and a linear or branched, substituted or unsubstituted hydrocarbon residue having 1 to 20 carbon atoms; R2 and R3 are same or different and are, independent from one another, selected from a linear or branched, substituted or unsubstituted hydrocarbon residue having 1 to 20 carbon atoms; R4 is selected from a linear or branched, substituted or unsubstituted hydrocarbon residue having 1 to 20 carbon atoms; R5 is selected from a linear or branched, substituted or unsubstituted hydrocarbon residue having 1 to 20 carbon atoms; R6 and R7 are same or different and are, independent from one another, selected from a linear or branched, suType: GrantFiled: June 5, 2020Date of Patent: January 24, 2023Assignee: Henkel AG & Co. KGaAInventors: Jan-Erik Damke, Johann Klein, Rok Brisar, Esteban Mejia
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Publication number: 20220363699Abstract: Disclosed is a tertiary hydroxyl functional alkoxysilane of the general formula (I) wherein R1 is selected from the group consisting of hydrogen and a linear or branched, substituted or unsubstituted hydrocarbon residue having 1 to 20 carbon atoms; R2 and R3 are same or different and are, independent from one another, selected from a linear or branched, substituted or unsubstituted hydrocarbon residue having 1 to 20 carbon atoms; R4 is selected from a linear or branched, substituted or unsubstituted hydrocarbon residue having 1 to 20 carbon atoms; R5 is selected from a linear or branched, substituted or unsubstituted hydrocarbon residue having 1 to 20 carbon atoms; R6 and R7 are same or different and are, independent from one another, selected from a linear or branched, substituted or unsubstituted hydrocarbon residue having 1 to 20 carbon atoms; and n is 1, 2 or 3, a method for preparing thereof, and the use of the tertiary hydroxyl functional alkoxysilane of the general formula (I).Type: ApplicationFiled: July 20, 2022Publication date: November 17, 2022Inventors: Jan-Erik Damke, Johann Klein, Rok Brisar, Esteban Mejia
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Patent number: 11370916Abstract: The invention relates to a curable composition comprising a) at least one polymer having at least one silicon-containing group of formula (1) —Si(R1)k(Y)3-k??(1), wherein each R1 is independently selected from a hydrocarbon radical containing 1 to 20 C atoms or a triorganosiloxane group of formula —O—Si(R2)3, wherein each R2 is independently selected from a hydrocarbon radical containing 1 to 20 C atoms; each Y is independently selected from a hydroxy group or a hydrolysable group; and k is 0, 1, or 2; b) at least one mixture of paramagnetic titanium complexes, characterized by a Landé g-factor of less than 2 detected by Electron Paramagnetic Resonance Spectroscopy; c) optionally, at least one compound which has a hydrolysable silicon-containing group and a molecular weight in the range of 100 to 1000 g/mol, an aminosilane preparations containing these compositions thereof.Type: GrantFiled: June 2, 2020Date of Patent: June 28, 2022Assignee: Henkel AG & Co. KGaAInventors: Andrea Gutacker, Jan-Erik Damke, Johann Klein, Esteban Mejia
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Patent number: 11326027Abstract: A method for producing a hydroxyl-functionalized polysiloxane having secondary or tertiary hydroxyl groups, said method comprising the steps of: i) reacting a hydroxyalkyl allyl ether having a secondary or tertiary alcohol group with a siloxane under anhydrous conditions and under transition metal catalysis, said hydroxylalkyl allyl ether conforming to Formula (I) wherein n is 0, 1, 2, 3, 4 or 5, preferably 0; m is 1, 2, 3, 4 or 5, preferably 1; spacer group A is constituted by a covalent bond or a C1-C20 alkylene group; R1 is hydrogen, a C1-C8 alkyl group, a C3-C10 cycloalkyl group, a C6-C18 aryl group or an aralkyl group; Ra, Rb, Rc, Rd, R2, R3, R4 and R5 may be the same or different and each is independently selected from hydrogen, a C1-C8 alkyl group, a C6-C18 aryl group or a C6-C18 aralkyl group, with the proviso that at least one of R3 and R4 is not hydrogen; and said siloxane conforming to Formula (II) wherein m is 1, 2, 3, 4 or 5, preferably 1; R6, R7, R8 and R9 may beType: GrantFiled: June 14, 2019Date of Patent: May 10, 2022Assignee: Henkel AG & Co. KGaAInventors: Marleen Winterberg, Marta Woznicka, Annika Dietrich, Esteban Mejia, Udo Kragl, Christina Despotopoulou, Ralf Dunekake, David Briers, Johann Klein, Henrik Lund
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Patent number: 11306109Abstract: The present invention relates to a method for preparing silicon-containing heterocycles of the general formula (I) wherein R1 is hydrogen; R2 and R3 are same or different and are, independently from one another, selected from a linear or branched, substituted or unsubstituted C1-C20 alkyl or C6-C18 aryl residue which may be interrupted by at least one heteroatom; R4 is selected from a linear or branched C1-C20 alkylene residue which may be interrupted by at least one heteroatom; R5 and R6 are same or different and are, independently from one another, selected from the group consisting of hydrogen, a linear or branched, substituted or unsubstituted C1-C20 alkyl or C6-C18 aryl which may be interrupted by at least one heteroatom, and a C4-C8 cycloalkyl, or R5 and R6 may form a ring, a 4- to 8-membered alkyl ring; and n is 0, 1 or 2, 2, said method comprising a one-step reaction of at least one epoxide compound of the general formula (II) and at least one aminoalkoxysilane having a primary amino group in thType: GrantFiled: January 17, 2020Date of Patent: April 19, 2022Assignee: Henkel AG & Co. KGaAInventors: Jan-Erik Damke, Johann Klein, Esteban Mejia, Rok Brisar
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Publication number: 20220089820Abstract: The present invention relates to an onium-functionalized siloxane having the general Formula (X) or (X-A) as defined herein; a method for preparing the onium-functionalized siloxane; and its use as an antimicrobial agent.Type: ApplicationFiled: November 30, 2021Publication date: March 24, 2022Inventors: Andrea Gutacker, Christian Kastner, Johann Klein, Annika Dietrich, Esteban Mejia
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Publication number: 20210292488Abstract: The present invention relates a hydroxyl-functionalized unimodal polysiloxane polyalkyleneglycol brush copolymer of the structure [A(-X—B)]s, wherein: A represents said polysiloxane backbone; B represents said polyalkyleneglycol side chain; X is a linker group characterized by including the moiety Si—C—C— of which said Si is a part of the polysiloxane backbone A; and s is an integer of from 1 to 100, wherein the polysiloxane backbone A contains less than 500 ppm mol % of SiH moiety based on the total moles of the silicon atom which constitutes the polysiloxane backbone, and said copolymer has a polydispersity index of from 1.3 to 5.0; and a method for producing said hydroxyl-functionalized unimodal polysiloxane polyalkyleneglycol brush copolymer.Type: ApplicationFiled: June 3, 2021Publication date: September 23, 2021Inventors: Andrea Gutacker, Johann Klein, Annika Dietrich, Esteban Mejia, Therese Hemery, Nayereh Mohebbati
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Publication number: 20210292484Abstract: The invention relates to a curable composition comprising: a) at least one polymer having at least one silicon-containing group of formula —Si(R1)k(Y)3-k as defined herein, and b) at least one hydroxyl-functionalized polysiloxane polyalkyleneglycol brush copolymer of the structure [A(-X—B)]s as defined herein; and an adhesive, sealant, or coating material comprising said curable composition and use thereof.Type: ApplicationFiled: June 3, 2021Publication date: September 23, 2021Inventors: Andrea Gutacker, Johann Klein, Annika Dietrich, Esteban Mejia, Therese Hemery
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Publication number: 20210292486Abstract: The present invention relates to a procedure in which a functionalized polysiloxane is synthesized in the presence of a platinum catalyst, and halogen-functionalized polysiloxanes obtained according to the procedure. The procedure is defined herein by reacting a) at least one polysiloxane comprising at least one hydrogen atom bonded to a silicon atom; b) at least one heterocyclic compound; and c) at least one halogen-containing compound, wherein the reaction is catalyzed by at least one platinum catalyst. The synthetic pathway is described as a halosilation reaction in which a heterocyclic molecule is ring-opened in the presence of a platinum catalyst and a halogen source, resulting in a formal insertion of the opened heterocycle into the SiH bond. On the final product, the heteroatom of the former heterocycle is bonded to the silicon atom from the former hydrosiloxane moiety while the halogen is bonded to the last carbon atom of the opened chain.Type: ApplicationFiled: June 1, 2021Publication date: September 23, 2021Inventors: Andrea Gutacker, Johann Klein, Annika Dietrich, Esteban Mejia, Therese Hemery
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Patent number: 11078323Abstract: The present invention discloses silylated polyurethanes obtainable by reacting at least one polyols, at least one polyisocyanates, at least one amide-functionalized silanes of the general formula (I) as described herein and their preparation methods, curable compositions comprising the silylated polyurethanes and their use as adhesive, sealant, spray foam and/or coating.Type: GrantFiled: October 18, 2019Date of Patent: August 3, 2021Assignee: Henkel AG & Co. KGaAInventors: Rok Brisar, Udo Kragl, Jan-Erik Damke, Johann Klein, Esteban Mejia
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Publication number: 20210147632Abstract: The invention relates to a process for preparing polyorganosiloxanes by (i) condensation polymerization of at least one linear organosiloxane which has at least one hydroxy group or hydrolysable group bound to a silicon atom, (ii) ring-opening polymerization of at least one cyclosiloxane, or (iii) ring-opening polymerization and condensation polymerization of a mixture of at least one linear organosiloxane which has at least one hydroxy group or hydrolysable group bound to a silicon atom and at least one cyclosiloxane with a basic initiator and a hydroxy group-containing compound in the presence of a polar aprotic solvent, wherein the obtained polyorganosiloxanes are not miscible in the polar aprotic solvent at room temperature.Type: ApplicationFiled: January 26, 2021Publication date: May 20, 2021Inventors: Christina Despotopoulou, Johann Klein, Therese Hemery, Esteban Mejia, Udo Kragl, Theresia Koehler, Lea Grefe
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Publication number: 20210122878Abstract: The present invention is directed to supported catalyst having utility in the polymerization and co-polymerization of epoxide monomers, said supported catalyst having the general Formula (I): [DMCC]*b Supp??(I) wherein: [DMCC] denotes a double metal cyanide complex which comprises a double metal cyanide (DMC) compound, at least one organic complexing agent and a metal salt; Supp denotes a hydrophobic support material; and, b represents the average proportion by weight of said support material, based on the total weight of [DMCC] and Supp, and is preferably in the range 1 wt. %?b?99 wt. %.Type: ApplicationFiled: December 16, 2020Publication date: April 29, 2021Inventors: Jan-Erik Damke, Johann Klein, Marion Marquardt, Esteban Mejia, Udo Kragl
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Publication number: 20210040269Abstract: The present invention is directed to a hydroxyl-functionalized polyether-polysiloxane block copolymer of the structure A(-X—B)n wherein: A represents said polysiloxane block; B represents said polyether block; X is a linker group characterized by including the moiety Si—C—C— of which said Si is the terminal silicon atom of the polysiloxane block A; and, n is an integer of from 2 to 4, said block copolymer being further characterized by a terminal unsaturation of less than 0.04 meq/g, preferably less than 0.03 meq/g and more preferably less than 0.025 meq/g and the method for producing thereof.Type: ApplicationFiled: October 20, 2020Publication date: February 11, 2021Inventors: Marta Woznicka, Swarup Ghosh, Marion Marquardt, Esteban Mejia, Udo Kragl, Christina Despotopoulou, Jan-Erik Damke, Johann Klein
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Patent number: 10889682Abstract: The present invention discloses silylated polyurethanes obtainable by reacting at least one polyols, at least one polyisocyanates, at least one silicon-containing heterocycle of the general formula (I): wherein R1 is hydrogen; R2 and R3 are same or different and are, independently from one another, selected from a linear or branched, substituted or unsubstituted C1-C20 alkyl or C6-C18 aryl residue which may be interrupted by at least one heteroatom; R4 is selected from a linear or branched, substituted or unsubstituted C1-C20 alkylene residue which may be interrupted by at least one heteroatom; R5 and R6 are same or different and are, independently from one another, selected from the group consisting of hydrogen, a linear or branched, substituted or unsubstituted C1-C20 alkyl or C6-C18 aryl which may be interrupted by at least one heteroatom, and a C4-C8 cycloalkyl, or R5 and R6 may form a ring, preferably a 4- to 8-membered alkyl ring; and n is 0, 1 or 2, their preparation methods, curable compositionType: GrantFiled: January 15, 2020Date of Patent: January 12, 2021Assignee: Henkel AG & Co. KGaAInventors: Jan-Erik Damke, Johann Klein, Esteban Mejia, Rok Brisar
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Publication number: 20200299314Abstract: Disclosed is a tertiary hydroxyl functional alkoxysilane of the general formula (I) wherein R1 is selected from the group consisting of hydrogen and a linear or branched, substituted or unsubstituted hydrocarbon residue having 1 to 20 carbon atoms; R2 and R3 are same or different and are, independent from one another, selected from a linear or branched, substituted or unsubstituted hydrocarbon residue having 1 to 20 carbon atoms; R4 is selected from a linear or branched, substituted or unsubstituted hydrocarbon residue having 1 to 20 carbon atoms; R5 is selected from a linear or branched, substituted or unsubstituted hydrocarbon residue having 1 to 20 carbon atoms; R6 and R7 are same or different and are, independent from one another, selected from a linear or branched, substituted or unsubstituted hydrocarbon residue having 1 to 20 carbon atoms; and n is 1, 2 or 3, a method for preparing thereof, and the use of the tertiary hydroxyl functional alkoxysilane of the general formula (I).Type: ApplicationFiled: June 11, 2020Publication date: September 24, 2020Inventors: Jan-Erik Damke, Johann Klein, Rok Brisar, Esteban Mejia
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Publication number: 20200299450Abstract: The invention relates to a silylated polyurethane obtainable by reacting: d) at least one polyol having a number average molecular weight of from 1000 to 50,000 g/mol; e) at least one polyisocyanate, preferably diisocyanate; and f) at least one tertiary hydroxyl functional alkoxysilane of the general formula (I) wherein R1 is selected from the group consisting of hydrogen and a linear or branched, substituted or unsubstituted hydrocarbon residue having 1 to 20 carbon atoms; R2 and R3 are same or different and are, independent from one another, selected from a linear or branched, substituted or unsubstituted hydrocarbon residue having 1 to 20 carbon atoms; R4 is selected from a linear or branched, substituted or unsubstituted hydrocarbon residue having 1 to 20 carbon atoms; R5 is selected from a linear or branched, substituted or unsubstituted hydrocarbon residue having 1 to 20 carbon atoms; R6 and R7 are same or different and are, independent from one another, selected from a linear or branched, suType: ApplicationFiled: June 5, 2020Publication date: September 24, 2020Inventors: Jan-Erik Damke, Johann Klein, Rok Brisar, Esteban Mejia