Patents by Inventor Michael Tobias Zarka

Michael Tobias Zarka 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: 11434362
    Abstract: The invention relates to the use of vinyl acetate-copolymers as a shrinkage-reducing additive (low profile additive) in cold-curing systems for producing composite materials, characterized in that vinyl acetate-copolyerisate of 40 to 95 wt % vinyl acetate and 5 to 60 wt % of one or more co-monomers from the group containing vinyl esters of unbranched or branched carboxylic acids having 3 to 20 C-atoms and methacrylic acid esters and acrylic acid esters of unbranched or branched alcohols having 2 to 15 C-atoms are used, wherein the specifications in wt % relate to the total weight of the co-monomers and add up to 100 wt %.
    Type: Grant
    Filed: March 3, 2017
    Date of Patent: September 6, 2022
    Assignee: WACKER CHEMIE AG
    Inventors: Michael Tobias Zarka, Karl Weber
  • Publication number: 20220259344
    Abstract: A low profile additive includes vinyl acetate-isopropenyl acetate copolymers. The vinyl acetate-isopropenyl acetate copolymers are based on from 2 to 98% by weight of vinyl acetate, from 2 to 98% by weight of isopropenyl acetate and optionally one or more further ethylenically unsaturated monomers, in each case based on the total weight of the vinyl acetate-isopropenyl acetate copolymers.
    Type: Application
    Filed: May 15, 2019
    Publication date: August 18, 2022
    Applicant: Wacker Chemie AG
    Inventors: Markus Bannwarth, Michael Tobias Zarka
  • Publication number: 20200157341
    Abstract: The invention relates to the use of vinyl acetate-copolymers as a shrinkage-reducing additive (low profile additive) in cold-curing systems for producing composite materials, characterized in that vinyl acetate-copolyerisate of 40 to 95 wt % vinyl acetate and 5 to 60 wt % of one or more co-monomers from the group containing vinyl esters of unbranched or branched carboxylic acids having 3 to 20 C-atoms and methacrylic acid esters and acrylic acid esters of unbranched or branched alcohols having 2 to 15 C-atoms are used, wherein the specifications in wt % relate to the total weight of the co-monomers and add up to 100 wt %.
    Type: Application
    Filed: March 3, 2017
    Publication date: May 21, 2020
    Inventors: Michael Tobias Zarka, Karl Weber
  • Patent number: 9074080
    Abstract: The invention relates to the use of polymers on the basis of renewable resources as LPA, characterized in that the polymers on the basis of renewable resources can be obtained by the radically initiated polymerization of one or more ethylenically unsaturated monomers in the presence of one or more renewable resources selected from the group consisting of carbohydrates and natural rubbers.
    Type: Grant
    Filed: May 9, 2011
    Date of Patent: July 7, 2015
    Assignee: Wacker Chemie AG
    Inventors: Florian Bauers, Michael Tobias Zarka
  • Patent number: 8952096
    Abstract: The invention provides graft copolymers obtainable by A) free-radically initiated polymerization of one or more vinyl esters a), one or more further ethylenically unsaturated monomers b) comprising at least one further functional group, B) subsequent polymer-analogous reaction of the copolymers from stage A) by joining the monomer units b) thereof to one or more further monomers b) such that at least one free-radically polymerizable group is introduced into the copolymers from stage A), characterized in that C) one or more ethylenically unsaturated monomers are polymerized onto the products from stage B) by free-radically initiated polymerization.
    Type: Grant
    Filed: December 9, 2009
    Date of Patent: February 10, 2015
    Assignee: Wacker Chemie AG
    Inventors: Florian Bauers, Michael Tobias Zarka
  • Patent number: 8709389
    Abstract: Hair care compositions contain from 0.1 to 12 weight percent of a silicone copolymer or saponification product thereof, prepared from silicones, at least 10% of which contain polymerizable groups, 0.5-14% of hydrophilic comonomers, and 30-99.9% of hydrophobic comonomers. The compositions exhibit good hair care properties.
    Type: Grant
    Filed: February 28, 2007
    Date of Patent: April 29, 2014
    Assignee: Wacker Chemie AG
    Inventors: Claudius Schwarzwaelder, Michael Tobias Zarka, Christian Hoegl, Heidemarie Schwarzwaelder
  • Patent number: 8476358
    Abstract: The invention relates to the use of protective-colloid-stabilized vinyl ester/ethylene copolymers in the form of polymer powder as low-profile-additives (LPAs).
    Type: Grant
    Filed: March 8, 2010
    Date of Patent: July 2, 2013
    Assignee: Wacker Chemie AG
    Inventors: Abdulmajid Hashemzadeh, Michael Tobias Zarka
  • Publication number: 20130144002
    Abstract: The invention relates to the use of polymers on the basis of renewable resources as LPA, characterized in that the polymers on the basis of renewable resources can be obtained by the radically initiated polymerization of one or more ethylenically unsaturated monomers in the presence of one or more renewable resources selected from the group consisting of carbohydrates and natural rubbers.
    Type: Application
    Filed: May 9, 2011
    Publication date: June 6, 2013
    Applicant: Wacker Chemie AG
    Inventors: Florian Bauers, Michael Tobias Zarka
  • Publication number: 20110319547
    Abstract: The invention relates to the use of protective-colloid-stabilized vinyl ester/ethylene copolymers in the form of polymer powder as low-profile-additives (LPAs).
    Type: Application
    Filed: March 8, 2010
    Publication date: December 29, 2011
    Applicant: Wacker Chemie AG
    Inventors: Abdulmajid Hashemzadeh, Michael Tobias Zarka
  • Publication number: 20110257297
    Abstract: The invention provides graft copolymers obtainable by A) free-radically initiated polymerization of one or more vinyl esters a), one or more further ethylenically unsaturated monomers b) comprising at least one further functional group, B) subsequent polymer-analogous reaction of the copolymers from stage A) by joining the monomer units b) thereof to one or more further monomers b) such that at least one free-radically polymerizable group is introduced into the copolymers from stage A), characterized in that C) one or more ethylenically unsaturated monomers are polymerized onto the products from stage B) by free-radically initiated polymerization.
    Type: Application
    Filed: December 9, 2009
    Publication date: October 20, 2011
    Applicant: Wacker Chemie AG
    Inventors: Florian Bauers, Michael Tobias Zarka
  • Publication number: 20090060858
    Abstract: Hair care compositions contain from 0.1 to 12 weight percent of a silicone copolymer or saponification product thereof, prepared from silicones, at least 10% of which contain polymerizable groups, 0.5-14% of hydrophilic comonomers, and 30-99.9% of hydrophobic comonomers. The compositions exhibit good hair care properties.
    Type: Application
    Filed: February 28, 2007
    Publication date: March 5, 2009
    Applicant: WACKER CHEMIE AG
    Inventors: Claudius Schwarzwaelder, Michael Tobias Zarka, Christian Hoegl, Heidemarie Schwarzwaelder