Patents by Inventor Mareike Bardts

Mareike Bardts 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: 10669460
    Abstract: In one aspect of the present disclosure, there is provided a sealant precursor, comprising a first part (A) comprising (a1) an epoxy curing agent having an amine equivalent weight of at least 150 grams per mole of amine equivalents; (b1) a first epoxy curative; a second part (B) comprising (a2) a blend of epoxy resins comprising at least one bisphenol A epoxy resins and at least one bisphenol F epoxy resin; (b2) at least one silicone-based resin comprising epoxy functionalities; (c2) optionally, a toughener.
    Type: Grant
    Filed: April 2, 2018
    Date of Patent: June 2, 2020
    Assignee: 3M Innovative Properties Company
    Inventor: Mareike Bardts
  • Patent number: 10647897
    Abstract: The present disclosure is directed to a precursor composition for a curable adhesive, the precursor comprising: a) a part (A) comprising: i. a first epoxy curing agent comprising at least one polyether amine and having an amine equivalent weight of at least 45 grams per mole of amine equivalents; ii. a second epoxy curing agent distinct from the first epoxy curing agent; iii. a metal nitrate catalyst; iv. optionally, a metal triflate catalyst; and b) a part (B) comprising: i. an epoxy resin; ii. a filler material; iii. an epoxy-based reactive diluent; and iv. optionally, a core-shell polymer toughening agent; and wherein the amount of filler material is selected such as to provide the part (B) with a hysteresis area of at least 30 Pa×1/s, when measured at 23 C according to the test method described in the experimental section.
    Type: Grant
    Filed: October 21, 2016
    Date of Patent: May 12, 2020
    Assignee: 3M Innovative Properties Company
    Inventor: Mareike Bardts
  • Publication number: 20200017738
    Abstract: In one aspect of the present disclosure, there is provided a sealant precursor, comprising a first part (A) comprising (a1) an epoxy curing agent having an amine equivalent weight of at least 150 grams per mole of amine equivalents; (b1) a first epoxy curative; a second part (B) comprising (a2) a blend of epoxy resins comprising at least one bisphenol A epoxy resins and at least one bisphenol F epoxy resin; (b2) at least one silicone-based resin comprising epoxy functionalities; (c2) optionally, a toughener.
    Type: Application
    Filed: April 2, 2018
    Publication date: January 16, 2020
    Inventor: Mareike Bardts
  • Publication number: 20190284453
    Abstract: In one aspect of the present disclosure, there is provided an adhesive precursor, comprising a first part (A) comprising: a first epoxy curing agent comprising at least one polyether amine and having an amine equivalent weight of at least 55 grams per mole of amine equivalents; a second epoxy curing agent distinct from the first epoxy curing agent and/or a secondary curative; a metal salt catalyst; a toughening agent; optionally, at least one phosphorous-based first flame retardant; optionally, at least one second flame retardant distinct from the at least one first flame retardant; and a second part (B) comprising: a first epoxy resin; and/or a second epoxy-based resin distinct from the first epoxy resin; at least one phosphorous-based first flame retardant; optionally, at least one second flame-retardant distinct from the at least one first flame retardant; an epoxy-based reactive diluent; a core-shell polymer toughening agent; and optionally, a filler material; wherein the total amount of flame retardant i
    Type: Application
    Filed: July 24, 2017
    Publication date: September 19, 2019
    Inventors: Carolin HEINTZ, Mareike BARDTS
  • Publication number: 20190241778
    Abstract: In one aspect of the present disclosure, there is provided an adhesive precursor, comprising a first part (A) comprising: a first epoxy curing agent comprising at least one polyether amine and having an amine equivalent weight of at least 55 grams per mole of amine equivalents; a second epoxy curing agent distinct from the first epoxy curing agent or a secondary curative; a metal salt catalyst; and optionally, a toughening agent; a second part (B) comprising: a first epoxy resin; a second epoxy-based resin distinct from the first epoxy resin; at least one phosphorous-based first flame retardant; a core-shell polymer toughening agent; optionally an epoxy-based reactive diluent; and optionally, a filler material; wherein the total amount of the flame retardant system is lower than 25 wt. % of the total curable adhesive precursor.
    Type: Application
    Filed: July 24, 2017
    Publication date: August 8, 2019
    Applicant: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Carolin Heintz, Mareike Bardts
  • Patent number: 10123948
    Abstract: A dental cement hardened by a cement reaction involving the specific polymerizable polyacidic polymer and optionally additional crosslinkable groups, has reduced shrinkage and improved mechanical properties, in particular with regard to flexural strength and fracture toughness. Moreover, the specific polymerizable polyacidic polymer of the present invention contains a high number of acidic groups which is not reduced by the presence of polymerizable moieties, whereby water solubility of the uncured polymer is not impaired by the presence of the polymerizable moieties.
    Type: Grant
    Filed: January 29, 2016
    Date of Patent: November 13, 2018
    Assignee: DENTSPLY SIRONA Inc.
    Inventors: Joachim E Klee, Helmut Ritter, Sven Pohle, Oliver Elsner, Mareike Bardts
  • Publication number: 20180305595
    Abstract: The present disclosure is directed to a precursor composition for a curable adhesive, the precursor comprising: a) a part (A) comprising: i. a first epoxy curing agent comprising at least one polyether amine and having an amine equivalent weight of at least 45 grams per mole of amine equivalents; ii. a second epoxy curing agent distinct from the first epoxy curing agent; iii. a metal nitrate catalyst; iv. optionally, a metal triflate catalyst; and b) a part (B) comprising: i. an epoxy resin; ii. a filler material; iii. an epoxy-based reactive diluent; and iv. optionally, a core-shell polymer toughening agent; and wherein the amount of filler material is selected such as to provide the part (B) with a hysteresis area of at least 30 Pa×1/s, when measured at 23 C according to the test method described in the experimental section.
    Type: Application
    Filed: October 21, 2016
    Publication date: October 25, 2018
    Inventor: MAREIKE BARDTS
  • Publication number: 20160143818
    Abstract: A dental cement hardened by a cement reaction involving the specific polymerizable polyacidic polymer and optionally additional crosslinkable groups, has reduced shrinkage and improved mechanical properties, in particular with regard to flexural strength and fracture toughness. Moreover, the specific polymerizable polyacidic polymer of the present invention contains a high number of acidic groups which is not reduced by the presence of polymerizable moieties, whereby water solubility of the uncured polymer is not impaired by the presence of the polymerizable moieties.
    Type: Application
    Filed: January 29, 2016
    Publication date: May 26, 2016
    Inventors: JOACHIM E. KLEE, HELMUT RITTER, SVEN POHLE, OLIVER ELSNER, MAREIKE BARDTS
  • Patent number: 9289360
    Abstract: An aqueous dental glass ionomer composition comprising (a) a reactive particulate glass, and (b) a linear or branched polymer comprising acidic groups, which is reactive with the particulate glass in a cement reaction, whereby the linear or branched polymer comprising acidic groups has a polymer backbone and optionally pendant side chains, (c) optionally dispersed nanoparticles, and (d) optionally a low molecular compound, characterized in that the glass ionomer composition comprises—S.sub.xH groups, wherein x is an integer of from 1 to 6, which crosslink the particulate glass and/or the linear polycarboxylic acid and/or the optional dispersed nanoparticles and/or the optional low molecular compound.
    Type: Grant
    Filed: April 17, 2014
    Date of Patent: March 22, 2016
    Assignee: DENTSPLY International Inc.
    Inventors: Joachim E. Klee, Stefan Brugger, Helmut Ritter, Christoph Weber, Oliver Elsner, Mareike Bardts, Andreas Facher, Sven Pohle
  • Publication number: 20150297467
    Abstract: An aqueous dental glass ionomer composition comprising (a) a reactive particulate glass, and (b) a linear or branched polymer comprising acidic groups, which is reactive with the particulate glass in a cement reaction, whereby the linear or branched polymer comprising acidic groups has a polymer backbone and optionally pendant side chains, (c) optionally dispersed nanoparticles, and (d) optionally a low molecular compound, characterized in that the glass ionomer composition comprises—S.sub.xH groups, wherein x is an integer of from 1 to 6, which crosslink the particulate glass and/or the linear polycarboxylic acid and/or the optional dispersed nanoparticles and/or the optional low molecular compound.
    Type: Application
    Filed: April 17, 2014
    Publication date: October 22, 2015
    Applicant: DENTSPLY International Inc.
    Inventors: Joachim E. KLEE, Stefan BRUGGER, Helmut RITTER, Christoph WEBER, Oliver ELSNER, Mareike BARDTS, Andreas FACHER, Sven POHLE
  • Publication number: 20150238390
    Abstract: A dental cement hardened by a cement reaction involving the specific polymerizable polyacidic polymer and optionally additional crosslinkable groups, has reduced shrinkage and improved mechanical properties, in particular with regard to flexural strength and fracture toughness. Moreover, the specific polymerizable polyacidic polymer of the present invention contains a high number of acidic groups which is not reduced by the presence of polymerizable moieties, whereby water solubility of the uncured polymer is not impaired by the presence of the polymerizable moieties.
    Type: Application
    Filed: May 13, 2015
    Publication date: August 27, 2015
    Inventors: JOACHIM E KLEE, HELMUT RITTER, SVEN POHLE, OLIVER ELSNER, MAREIKE BARDTS
  • Publication number: 20130338252
    Abstract: Dental cement composition comprising a polymerizable polyacidic polymer having repeating units in the polymer backbone, a polymerizable monomer having at least one polymerizable functional group; a radical polymerization initiator.
    Type: Application
    Filed: June 13, 2012
    Publication date: December 19, 2013
    Applicant: DENTSPLY INTERNATIONAL INC.
    Inventors: Joachim E. Klee, Helmut Ritter, Sven Pohle, Oliver Elsner, Mareike Bardts
  • Publication number: 20120238662
    Abstract: Dental cement composition comprising a polymerizable polyacidic polymer having repeating units in the polymer backbone, which are represented by the following formula (I)1 (II), and/or (III): wherein X represents O, S, or NR?, whereby R? represents a hydrogen atom or a straight or branched C1-C6 alkyl group, C3-C6 cycloalkyl group, or C4-C8 cycloalkylalkyl group, Y a group of the following formula (IV), wherein each of L1, L2, L3 and L4, which are independent from each other represents a single bond, a straight or branched C1-C6 alkylene group, a straight or branched C1-C6 alkenylene, or a straight or branched C1-C20 alkylene group which includes 1 to 8 atoms selected from oxygen and sulfur atoms, X? represents O, S, or NR?, whereby R? represents a hydrogen atom or a straight or branched C1-C6 alkyl group, C3-C6 cycloalkyl group, or C4-C8 cycloalkylalkyl group, m is 0 to 3, and n is 1 to 3.
    Type: Application
    Filed: December 7, 2010
    Publication date: September 20, 2012
    Applicant: DENTSPLY DE TREY GMBH
    Inventors: Joachim E. Klee, Helmut Ritter, Sven Pohle, Oliver Elsner, Mareike Bardts
  • Publication number: 20120149801
    Abstract: An aqueous dental glass ionomer composition comprising (a) a reactive particulate glass, and (b) a linear or branched polymer comprising acidic groups, which is reactive with the particulate glass in a cement reaction, whereby the linear or branched polymer comprising acidic groups has a polymer backbone and optionally pendant side chains, (c) optionally dispersed nanoparticles, and (d) optionally a low molecular compound, characterized in that the glass ionomer composition comprises —SxH groups, wherein x is an integer of from 1 to 6, which crosslink the particulate glass and/or the linear polycarboxylic acid and/or the optional dispersed nanoparticles and/or the optional low molecular compound.
    Type: Application
    Filed: March 9, 2010
    Publication date: June 14, 2012
    Applicant: DENTSPLY DETREY GMBH
    Inventors: Joachim E. Klee, Stefan Brugger, Helmut Ritter, Christoph Weber, Oliver Elsner, Mareike Bardts, Andreas Facher, Sven Pohle