Patents by Inventor Joachim Zech

Joachim Zech 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).

  • Patent number: 11267968
    Abstract: The invention relates to a radiation-curable silicone composition for additive-manufacturing technology comprising mercapto-functional polyorganosiloxane(s) as Component A, organosiloxane(s) with at least two aliphatic unsaturated carbon-carbon moieties as Component B, photo-initiator(s) as Component C for initiating a curing reaction between Component A and Component B, dye(s) as Component D, and at least one of the following as Component E: solvent being able to dissolve the dye(s); and/or surfactant(s) being able to dissolve the dye(s).
    Type: Grant
    Filed: January 29, 2019
    Date of Patent: March 8, 2022
    Assignee: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Peter Osswald, Henning Hoffmann, Hendrick Grupp, Joachim Zech, Daniel Oberpertinger, Malte Korten, Gallus Schechner
  • Publication number: 20210214556
    Abstract: The invention relates to a radiation-curable silicone composition for additive-manufacturing technology comprising mercapto-functional polyorganosiloxane(s) as Component A, organosiloxane(s) with at least two aliphatic unsaturated carbon-carbon moieties as Component B, photo-initiator(s) as Component C for initiating a curing reaction between Component A and Component B, dye(s) as Component D, and at least one of the following as Component E: solvent being able to dissolve the dye(s); and/or surfactant(s) being able to dissolve the dye(s).
    Type: Application
    Filed: January 29, 2019
    Publication date: July 15, 2021
    Inventors: Peter Osswald, Henning Hoffmann, Hendrick Grupp, Joachim Zech, Daniel Oberpertinger, Malte Korten, Gallus Schechner
  • Patent number: 10952933
    Abstract: The invention relates to a kit of parts comprising a Base Paste (B) and a Catalyst Paste (C), Base Paste (B) comprising a cationically hardenable component, Catalyst Paste (C) comprising a starter component suitable to contribute to the hardening of the cationically hardenable compound, the composition obtained when combining the compositions of Base Paste (B) and Catalyst Paste (C) comprising in addition a porous water-adsorbing component and water, the porous water-adsorbing component being selected from molecular sieves, zeolites, silica gel and mixtures thereof, wherein either the porous water-adsorbing component is present in Base Paste (B) and the water is present in Catalyst Paste (C), or the water-adsorbing component is present in Catalyst Paste (C) and the water is present in Base Paste (B).
    Type: Grant
    Filed: June 30, 2016
    Date of Patent: March 23, 2021
    Assignee: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Joachim Zech, Hendrik Grupp, Christoph Schulte, Andreas R. Maurer, Peter U. Osswald
  • Publication number: 20200383877
    Abstract: Disclosed herein are non-aqueous compositions including: a flowable Part A including at least one resin and Reactant A; and a flowable Part B including at least one resin and Reactant B; wherein at least one of flowable Part A and flowable Part B further includes a free radically polymerizable resin; wherein at least one of flowable Part A and flowable Part B further includes a free radical initiator system; wherein flowable Part A and flowable Part B are capable of being mixed to provide a flowable mixed composition; wherein when flowable Part A and flowable Part B are mixed, Reactant A and Reactant B are capable of interacting to cause a non-free radical reaction within a first staging time to provide a first staged stable consistency for the mixed composition; wherein Reactant A comprises an acid and Reactant B comprises a base, and upon mixing flowable Part A and flowable Part B, the Reactant A acid is capable of reacting with the Reactant B base in an ionic acid-base reaction; and wherein the mixed compo
    Type: Application
    Filed: December 19, 2018
    Publication date: December 10, 2020
    Inventors: Gregory A. Kobussen, Ahmed S. Abuelyaman, Paul J. Homnick, Bradley D. Craig, Ying Lin, Hassan Sahouani, Chuntoa Cao, William H. Moser, Kolby L. White, Joseph D. Rule, Joachim Zech
  • Publication number: 20200131356
    Abstract: The invention relates to a radiation curable composition for additive-manufacturing processes, the composition comprising (meth)acrylate component(s) not comprising an urethane moiety having a molecular weight Mw of at least 1,000 as Component A1, photo initiator as Component B, red, yellow or orange dye or combination thereof as Component C, blue dye having a light absorption band in the range of 350 to 420 nm as Component D, and optionally stabilizer as Component E. The invention further relates to a process of producing an elastomeric 3-dim article from the radiation curable composition in an additive-manufacturing process and the obtained elastomeric 3-dim article.
    Type: Application
    Filed: May 21, 2018
    Publication date: April 30, 2020
    Inventors: Joachim Zech, Hendrik Grupp, Malte Korten, Ralf Paehl, Dietmar Blees, Gioacchino Raia
  • Publication number: 20190358130
    Abstract: The invention relates to a curable composition for dental retraction comprising a resin matrix comprising at least one polyorganosiloxane with at least two olefinically unsaturated groups as component A1, at least one organohydrogenpolysiloxane as component A2, optionally at least one vinyl functional QM silicone component as component A3, at least one alkylsiloxane having at least one carbinol, silanol, or alkoxy moiety as component B, optionally surfactant(s) as component E, optionally additive(s) as component F, a filler system comprising filler(s) as component D, a catalyst system comprising addition cure catalyst component C-A suitable to cure components A1 and A2, condensation cure catalyst component C-B suitable to cure component B, the curable composition being provided as a kit of part comprising a Catalyst Part I and a Base Part II the Catalyst Part I comprising components C-A, C-B, A1, the Base Part II comprising components A2, A1, B, wherein each of components D, E and F and A3, if present, can be
    Type: Application
    Filed: January 15, 2018
    Publication date: November 28, 2019
    Inventors: Henning Hoffmann, Peter Osswald, Joachim Zech
  • Publication number: 20180200156
    Abstract: The invention relates to a kit of parts comprising a Base Paste (B) and a Catalyst Paste (C), Base Paste (B) comprising a cationically hardenable component, Catalyst Paste (C) comprising a starter component suitable to contribute to the hardening of the cationically hardenable compound, the composition obtained when combining the compositions of Base Paste (B) and Catalyst Paste (C) comprising in addition a porous water-adsorbing component and water, the porous water-adsorbing component being selected from molecular sieves, zeolites, silica gel and mixtures thereof, wherein either the porous water-adsorbing component is present in Base Paste (B) and the water is present in Catalyst Paste (C), or the water-adsorbing component is present in Catalyst Paste (C) and the water is present in Base Paste (B).
    Type: Application
    Filed: June 30, 2016
    Publication date: July 19, 2018
    Inventors: Joachim Zech, Hendrik Grupp, Christoph Schulte, Andreas R. Maurer, Peter U. Osswald
  • Publication number: 20070060717
    Abstract: The invention relates to curable silicone compositions which contain silane based crosslinkers and a mixture of different organopolysiloxanes. The compositions are particularly suitable as curable impression materials in dental applications.
    Type: Application
    Filed: May 7, 2004
    Publication date: March 15, 2007
    Inventors: Joachim Zech, Franziska Strauss, Henning Hoffmann, Peter Bissinger, Wolf Steiger
  • Patent number: 7186758
    Abstract: The invention relates to a two-component addition-cured silicon impression compound, comprising the following when both components are mixed: (a) between 1 and 35 wt. % of at least one organopolysiloxane comprising at least two unsaturated groups in the molecule; (b) between 1 and 10 wt. % of at least one organohydrogenpolysiloxane comprising at least two SiH groups in the molecule; (c) between 0.00005 and 0.05 wt. % of at least one platinum catalyst, calculated as elementary platinum; (d) between 4 and 10 wt. % of at least one liquid paraffin or at least one white mineral oil, or of a mixture of at least one liquid paraffin and at least one white mineral oil; (e) between 50 and 90 wt. % of at least one filler, each respective percentage relating to the total weight of the silicon impression compound. According to the invention, one of the components before being mixed with the other component has a Brookfield viscosity ranging between 800 and 2000 Pa*s.
    Type: Grant
    Filed: March 28, 2002
    Date of Patent: March 6, 2007
    Assignee: 3m ESPE AG
    Inventors: Joachim Zech, Johann Fetz, Erich Wanek, Ingo Wagner
  • Publication number: 20070004858
    Abstract: The invention provides a method to reduce evolution of hydrogen gas especially during pouring gypsum models from addition cured silicones. In this respect the invention relates to an addition curable silicone composition, comprising an addition-curable siloxane compound, a siloxane crosslinker, a catalyst and an unsaturated silane compound with at least one methylene group directly attached to the unsaturation in an amount effective to reduce the amount of hydrogen gas evolved in the reaction of said composition.
    Type: Application
    Filed: September 3, 2004
    Publication date: January 4, 2007
    Inventors: Joachim Zech, Henning Hoffmann, Peter Bissinger, Wolf Steiger
  • Publication number: 20060293469
    Abstract: The present invention relates to a multicomponent automixable putty impression material, its components, mixtures of the components and a method for obtaining impressions with the multicomponent automixable putty impression material.
    Type: Application
    Filed: July 30, 2004
    Publication date: December 28, 2006
    Applicant: 3M ESPE AG
    Inventors: Joachim Zech, Peter Bissinger, Henning Hoffmann, Wolf Steiger
  • Publication number: 20060111464
    Abstract: The invention relates to a curable composition comprising addition curable silicone component (A) having a linear siloxane backbone at least one unsaturated, non-activated side group pendant from the Si atom or atoms in the backbone, component (A) having an equivalent weight in the range of about 68 to about 1000, crosslinker component (B) comprising at least 2 SiH groups, catalyst component (C) being able to catalyse the reaction between component (A) and component (B), filler component (D), wherein the equivalent weight is defined as (molecular weight of the molecule)/(number of unsaturations in the molecule).
    Type: Application
    Filed: October 11, 2005
    Publication date: May 25, 2006
    Inventors: Peter Bissinger, Joachim Zech
  • Patent number: 6908953
    Abstract: The present invention is directed to polymerizable dental compositions containing (a) 3 to 80 wt. % of cycloaliphatic epoxides; b) 0 to 80 wt. % of an epoxide or a mixture of epoxides which are different from a); c) 3 to 85 wt. % of a filler material; d) 0.01 to 25 wt. % of initiators, inhibitors and/or accelerators; e) 0 to 25 wt. % of auxiliary agents, the individual percentages of which are in relation to the total weight. The new polymerizable agents are particularly suited as dental material.
    Type: Grant
    Filed: March 18, 2003
    Date of Patent: June 21, 2005
    Assignee: ESPE Dental AG
    Inventors: Wolfgang Weinmann, Oswald Gasser, Rainer Guggenberger, Gunther Lechner, Wolfgang Soglowek, Joachim Zech
  • Patent number: 6906117
    Abstract: Arizidinosilicones of the general formula (1), wherein R1 represents H, C1-C12 alkyl, C2-C12 alkenyl, C2-C12 alkinyl, C7-C15 alkaryl, C7-C15 aralkyl, C3-C12 cycloalkyl and these groups can be substituted with Cl or F partially, completely or in a mixed manner and/or may contain 0 to 5 heteroatoms selected from O, N, S, R2 represents a group of the selection of R1 and/or R4, and R3 represents SiRl3 or SiR12R4, and wherein R4 represents formula (2), and A represents an (n+1) radical saturated, unsaturated or aromatic, linear, branched or cyclic hydrocarbon group that may contain 0 to 5 heteroatoms selected from O, N, S and that includes 1 to 18 carbon atoms, B is selected from O, S, NR1, D is selected from C(O)O, C(O)NR1, C(O), C(O)C(O), C(O)(CH2)m(C(O), C(S)NR1, CH2, E represents a diradical saturated or unsaturated, linear, branched or cyclic hydrocarbon group that may contain 0 to 5 heteroatoms selected from O, N, S and that includes 0 to 18 carbon atoms, a is 0 or 1, f is an integer from 2 to 1000, n, m is
    Type: Grant
    Filed: May 30, 2001
    Date of Patent: June 14, 2005
    Assignee: 3M Espe AG
    Inventors: Reinhold Nowak, Joachim Zech, Peter Bissinger, Erich Wanek, Gunther Eckhardt, Guenther Lechner
  • Patent number: 6894144
    Abstract: The invention relates to elastomer materials based on N-alkylaziridino compounds with a base component which contains the aziridino compounds and with a catalyst component which contains at least one acid-acting compound, both components being mixed before use, characterized in that, as acid-acting compound of the catalyst component, one or more boric acid complexes are used which can be obtained by reaction of boric acid and/or a boric acid derivative with at least one OH-functional compound, the OH functions being able to be present wholly or partly protected, and this reaction being carried out either as an upstream reaction between boric acid and/or a boric acid derivative and at least one such OH-functional compound or during or after the preparation of the catalyst component or by mixing the catalyst component with the base component which then contains at least one OH-functional compound.
    Type: Grant
    Filed: September 1, 2000
    Date of Patent: May 17, 2005
    Assignee: 3M Espe AG
    Inventors: Joachim Zech, Gunther Eckhardt, Cornelia F├╝hrer, Bernd Gangnus, Andreas Rombach, Oswald Gasser, Thomas Klettke, Erich Wanek
  • Patent number: 6867246
    Abstract: N-alkyl aziridine block copolymers of the general structure (1), wherein R1 represents H, C1-C12 alkyl, C2-C12 alkenyl, C2-C12 alkinyl, C7-C15 aralkyl C7-C15 aralkyl, or C3-C12 cycloalkyl and these groups can be substituted with C1 or F partially, completely or in a mixed manner and/or may contain 0 to 5 heteroatoms selected from O, N, S; R2 represents a group selected from R1 and/or R4; R3 represents SiR13 or SiR12R4, wherein R4 represents a group of the general formula (2), wherein A represents an (n+1) radical saturated, unsaturated or aromatic, linear, branched or cyclic hydrocarbon group that may contain 0 to 5 heteroatoms selected from O, N, S and that comprises 1 to 18 carbon atoms; B is selected from O, S, NR1; D is selected from C(O)O, C(O)NR1, C(O), C(S)NR1, CH2; E represents a diradical saturated or unsaturated, linear, branched or cyclic hydrocarbon group that may contain 0 to 5 heteroatoms selected from O, N, S, and that comprises 0 to 18 carbon atoms; Q represents and ?, ?-radical polyether chai
    Type: Grant
    Filed: May 30, 2001
    Date of Patent: March 15, 2005
    Assignee: 3M Espe AG
    Inventors: Reinhold Nowak, Joachim Zech, Peter Bissinger, Erich Wanek, Gunther Eckhardt, Guenther Lechner
  • Publication number: 20040110863
    Abstract: The invention relates to a two-component addition-cured silicon impression compound, comprising the following when both components are mixed: (a) between 1 and 35 wt. % of at least one organopolysiloxane comprising at least two unsaturated groups in the molecule; (b) between 1 and 10 wt. % of at least one organohydrogenpolysiloxane comprising at least two SiH groups in the molecule; (c) between 0.00005 and 0.05 wt. % of at least one platinum catalyst, calculated as elementary platinum; (d) between 4 and 10 wt. % of at least one liquid paraffin or at least one white mineral oil, or of a mixture of at least one liquid paraffin and at least one white mineral oil; (e) between 50 and 90 wt. % of at least one filler, each respective percentage relating to the total weight of the silicon impression compound. According to the invention, one of the components before being mixed with the other component has a Brookfield viscosity ranging between 800 and 2000 Pa*s.
    Type: Application
    Filed: September 29, 2003
    Publication date: June 10, 2004
    Inventors: Joachim Zech, Johann Fetz, Erich Wanek, Ingo Wagner
  • Publication number: 20040024113
    Abstract: The invention relates to polymerizable compositions comprising
    Type: Application
    Filed: March 18, 2003
    Publication date: February 5, 2004
    Applicant: ESPE Dental AG
    Inventors: Wolfgang Weinmann, Oswald Gasser, Rainer Guggenberger, Gunther Lechner, Wolfgang Soglowek, Joachim Zech
  • Publication number: 20040014907
    Abstract: N-alkyl aziridine block copolymers of the general structure (1), wherein R1 represents H, C1-C12 alkyl, C2-C12 alkenyl, C2-C12 alkinyl, C7-C15 alkaryl, C7-C15 aralkyl or C3-C12 cycloalkyl and these groups can be substituted with C1 or F partially, completely or in a mixed manner and/or may contain 0 to 5 heteroatoms selected from O, N, S; R2 represents a group selected from R1 and/or R4; R3 represents SiR13 or SiR12R4, wherein R4 represents a group of the general formula (2), wherein A represents an (n+1) radical saturated, unsaturated or aromatic, linear, branched or cyclic hydrocarbon group that may contain 0 to 5 heteroatoms selected from O, N, S and that comprises 1 to 18 carbon atoms; B is selected from O, S, NR1; D is selected from C(O)O, C(O)NR1, C(O), C(S)NR1, CH2; E represents a diradical saturated or unsaturated, linear, branched or cyclic hydrocarbon group that may contain 0 to 5 heteroatoms selected from O, N, S, and that comprises 0 to 18 carbon atoms; Q represents and &agr;, &ohgr;-radical
    Type: Application
    Filed: July 8, 2003
    Publication date: January 22, 2004
    Inventors: Reinhard Nowak, Joachim Zech, Peter Bissinger, Erich Wanek, Gunther Eckhardt, Guenther Lechner
  • Publication number: 20040014924
    Abstract: Arizidinosilicones of the general formula (1), wherein R1 represents H, C1-C12 alkyl, C2-C12 alkenyl, C2-C12 alkinyl, C7-C15 alkaryl, C7-C15 aralkyl, C3-C12 cycloalkyl and these groups can be substituted with C1 or F partially, completely or in a mixed manner and/or may contain 0 to 5 heteroatoms selected from O, N, S, R2 represents a group of the selection of R1 and/or R4, and R3 represents SiR13 or SiR12R4, and wherein R4 represents formula (2), and A represents an (n+1) radical saturated, unsaturated or aromatic, linear, branched or cyclic hydrocarbon group that may contain 0 to 5 heteroatoms selected from O, N, S and that includes 1 to 18 carbon atoms, B is selected from O, S, NR1, D is selected from C(O)O, C(O)NR1, C(O), C(O)C(O), C(O)(CH2)m(C(O), C(S)NR1, CH2, E represents a diradical saturated or unsaturated, linear, branched or cyclic hydrocarbon group that may contain 0 to 5 heteroatoms selected from O, N, S and that includes 0 to 18 carbon atoms, a is 0 or 1, f is an integer from 2 to 1000, n,
    Type: Application
    Filed: June 4, 2003
    Publication date: January 22, 2004
    Inventors: Reinhold Nowak, Joachim Zech, Peter Bissinger, Erich Wanek, Gunther Eckhardt, Guenther Lechner