Patents by Inventor Matthew Stewart Gebhard
Matthew Stewart Gebhard 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: 11965050Abstract: The present invention further relates to a waterborne dispersion comprising (A) polymer P; (B) amphiphilic block copolymer obtained with a controlled radical polymerization process and comprising at least blocks [A] and [B], whereby block [A] comprises ethylenically unsaturated monomer(s) bearing water-soluble and/or water-dispersible functional groups (monomer(s) (i)), and block [B] comprises ethylenically unsaturated monomer(s) different from monomer(s) (i) (monomer(s) (ii)); and (C) crosslinker, characterized in that the polymer P is crosslinkable and comprises ethylenically unsaturated monomer(s) bearing crosslinkable functional groups different from monomer(s) (i) and monomer(s) (ii) (monomer(s) (iii)) in an amount of from 1 to 10 wt. %, based on the total weight of monomers used to prepare the polymer P, the amount of lock copolymer is higher than 1 wt. % and lower than 30 wt.Type: GrantFiled: December 18, 2018Date of Patent: April 23, 2024Assignee: Covestro (Netherlands) B.V.Inventors: Michael Arnoldus Jacobus Schellekens, Johannes Hendrikus De Bont, John Barbosa, Jon Andrew Cronin, Charles Shearer, Matthew Stewart Gebhard, Gerardus Cornelis Overbeek
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Patent number: 11459419Abstract: The present invention relates to a waterborne dispersion comprising (A) amphiphilic block copolymer obtained with a controlled radical polymerization process and comprising at least blocks [A] and [B], whereby block [A] comprises ethylenically unsaturated monomer(s) bearing water-soluble and/or water-dispersible functional groups (monomer(s) (i)), and block [B] comprises ethylenically unsaturated monomer(s) different from monomer(s) (i) (monomer(s) (ii)); and (B) polymer P comprising ethylenically unsaturated monomer(s) different from (i) (monomer(s) (ii)), characterized in that the amount of block copolymer is higher than 1 and lower than 30 wt. %, based on the total weight of monomers used to prepare the block copolymer and polymer P; the acid value of the composition consisting of block copolymer and polymer P is higher than 1 and at most 35 mg KOH per g of the block copolymer-polymer P composition; the block copolymer has a calculated glass transition temperature of higher than 10° C.Type: GrantFiled: December 18, 2018Date of Patent: October 4, 2022Assignee: COVESTRO (NETHERLANDS) B.V.Inventors: Michael Arnoldus Jacobus Schellekens, Johannes Hendrikus De Bont, John Barbosa, Jon Andrew Cronin, Charles Shearer, Matthew Stewart Gebhard, Gerardus Cornelis Overbeek
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Publication number: 20210079209Abstract: The present invention relates to a waterborne dispersion comprising (A) amphiphilic block copolymer obtained with a controlled radical polymerization process and comprising at least blocks [A] and [B], whereby block [A] comprises ethylenically unsaturated monomer(s) bearing water-soluble and/or water-dispersible functional groups (monomer(s) (i)), and block [B] comprises ethylenically unsaturated monomer(s) different from monomer(s) (i) (monomer(s) (ii)); and (B) polymer P comprising ethylenically unsaturated monomer(s) different from (i) (monomer(s) (ii)), characterized in that the amount of block copolymer is higher than 1 and lower than 30 wt. %, based on the total weight of monomers used to prepare the block copolymer and polymer P; the acid value of the composition consisting of block copolymer and polymer P is higher than 1 and at most 35 mg KOH per g of the block copolymer-polymer P composition; the block copolymer has a calculated glass transition temperature of higher than 10° C.Type: ApplicationFiled: December 18, 2018Publication date: March 18, 2021Inventors: Michael Arnoldus Jacobus SCHELLEKENS, Johannes Hendrikus DE BONT, John BARBOSA, Jon Andrew CRONIN, Charles SHEARER, Matthew Stewart GEBHARD, Gerardus Cornelis OVERBEEK
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Publication number: 20210070977Abstract: The present invention further relates to a waterborne dispersion comprising (A) polymer P; (B) amphiphilic block copolymer obtained with a controlled radical polymerization process and comprising at least blocks [A] and [B], whereby block [A] comprises ethylenically unsaturated monomer(s) bearing water-soluble and/or water-dispersible functional groups (monomer(s) (i)), and block [B] comprises ethylenically unsaturated monomer(s) different from monomer(s) (i) (monomer(s) (ii)); and (C) crosslinker, characterized in that the polymer P is crosslinkable and comprises ethylenically unsaturated monomer(s) bearing crosslinkable functional groups different from monomer(s) (i) and monomer(s) (ii) (monomer(s) (iii)) in an amount of from 1 to 10 wt. %, based on the total weight of monomers used to prepare the polymer P, the amount of lock copolymer is higher than 1 wt. % and lower than 30 wt.Type: ApplicationFiled: December 18, 2018Publication date: March 11, 2021Inventors: Michael Arnoldus Jacobus SCHELLEKENS, Johannes Hendrikus DE BONT, John BARBOSA, Jon Andrew CRONIN, Charles SHEARER, Matthew Stewart GEBHARD, Gerardus Cornelis OVERBEEK
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Publication number: 20190211158Abstract: The present invention relates to a dispersion comprising (A) a carrier fluid in an amount from 35 to 95 wt. %, the carrier fluid comprising: (A1) water, and (A2) at least one compound selected from the group consisting of ethanol, 1-propanol, 2-propanol, ethyl acetate, n-propyl acetate, isopropyl acetate, acetone, methyl ethyl ketone and any mixture of at least two of these compounds, whereby the amount of water (A1) relative to the carrier fluid (A) is less than 85 wt. % and the amount of water relative to the dispersion is from 1 to 30 wt. %; and (B) polymer(s) in an amount from 5 to 65 wt.Type: ApplicationFiled: September 12, 2017Publication date: July 11, 2019Inventors: Roel Johannes Marinus SWAANS, Matthew Stewart GEBHARD, Ronald TENNEBROEK, Gerardus Cornelis OVERBEEK, Koen BIEMANS, Paulus Johannes Maria HÖNEN, Petrus Johannes Maria VAN OORSCHOT
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Patent number: 9688804Abstract: There are described a dispersion of polymeric beads where the beads comprise a copolymer composition comprising (preferably consisting essentially of): copolymers (and processes for making them) comprising (a) at least 8.5 wt-% preferably >=20 wt-% of a higher itaconate diester (preferably dibutyl itaconate—DBI); (b) less than 23 wt-% acid monomer but also sufficient to have an acid value less than 150 mg KOH/g of polymer, (c) optionally with less than 50 wt-% of other itaconate monomers, and (d) optionally less than 77 wt-% of other monomers not (a) to (c). The DBI may be biorenewable. A further embodiment is an aqueous suspension polymerization process for preparing vinyl polymer beads from olefinically unsaturated monomers and a free-radical initiator, where at least 10 wt-% of the monomer is DBI.Type: GrantFiled: February 4, 2013Date of Patent: June 27, 2017Assignee: DSM IP ASSETS B.V.Inventors: Tijs Nabuurs, Gerardus Cornelis Overbeek, Jeffrey Stubbs, Matthew Stewart Gebhard
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Patent number: 9255171Abstract: There are described q oligomer-polymer composition [optionally substantially free of styrene (<1.5 wt-% of copolymer)] comprising oligomer composition O having a weight average molecular weight of from 1000 to 150,000 g/mol (measured by GPC) and polymer composition P having a weight average molecular weight of at least 80,000 g/mol (measured by GPC) the oligomer composition O and the polymer composition P each independently comprising a copolymer composition comprising: (a) at least 8.5 wt-% preferably >=20 wt-% of a higher itaconate diester (preferably dibutyl itaconate—DBI); (b) less than 23 wt-% acid monomer but also sufficient to have an acid value less than 150 mg KOH/g of polymer, (c) optionally with less than 50 wt-% of other itaconate monomers, and (d) optionally less than 77 wt-% of other monomers not (a) to (c). The DBI may be biorenewable. One embodiment is an aqueous dispersion of vinyl sequential polymer of two phases: A) 40 to 90 wt-% of a vinyl polymer A with Tg from ?50 to 30° C.Type: GrantFiled: February 4, 2013Date of Patent: February 9, 2016Assignee: DSM IP ASSETS B.V.Inventors: Tijs Nabuurs, Gerardus Cornelis Overbeek, Jeffrey Stubbs, Matthew Stewart Gebhard
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Publication number: 20150017460Abstract: There are described q oligomer-polymer composition [optionally substantially free of styrene (<1.5 wt-% of copolymer)] comprising oligomer composition O having a weight average molecular weight of from 1000 to 150,000 g/mol (measured by GPC) and polymer composition P having a weight average molecular weight of at least 80,000 g/mol (measured by GPC) the oligomer composition O and the polymer composition P each independently comprising a copolymer composition comprising: (a) at least 8.5 wt-% preferably >=20 wt-% of a higher itaconate diester (preferably dibutyl itaconate—DBI); (b) less than 23 wt-% acid monomer but also sufficient to have an acid value less than 150 mg KOH/g of polymer, (c) optionally with less than 50 wt-% of other itaconate monomers, and (d) optionally less than 77 wt-% of other monomers not (a) to (c). The DBI may be biorenewable. One embodiment is an aqueous dispersion of vinyl sequential polymer of two phases: A) 40 to 90 wt-% of a vinyl polymer A with Tg from ?50 to 30° C.Type: ApplicationFiled: February 4, 2013Publication date: January 15, 2015Inventors: Tijs Nabuurs, Gerardus Cornelis Overbeek, Jeffrey Stubbs, Matthew Stewart Gebhard
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Publication number: 20150017451Abstract: There is described a polymer blend of a first and second polymer comprising: a) a first polymer of: vinyl (co)polymer; alkyd; urethane acrylic copolymer; polyurethane and/or polyester; b) a second copolymer from: b1) optionally at least 10 wt-% of one or derivatives of itaconic acid and/or isomers thereof; b2) up to 20 wt-% of one or more acid functional (or potentially acid functional) monomer(s) and b3) vinyl monomer(s) where wt % of each monomer (b1 to b3) is based on total (b) and where at least one of the first and second polymer is obtained from an itacon-functional monomer such as itaconic acid and/or its derivatives.Type: ApplicationFiled: February 4, 2013Publication date: January 15, 2015Inventors: Tijs Nabuurs, Jeffrey Stubbs, Matthew Stewart Gebhard, Gerardus Cornelis Overbeek
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Publication number: 20150017459Abstract: There is described a method of preparing a post-modified polymer the method comprising the steps of: (1) polymerising a monomer composition comprising from 2.5 to 75% by weight of the total monomer composition of at least one itaconic anhydride, precursor thereof and/or derivative thereof in a polymerisation method to obtain an itaconate Polymer A; (2) reacting in a post modification step at least 10 mole-% of the anhydride groups, anhydride precursor groups and/or anhydride derived groups of the Polymer A obtained from step (1) with a Nucleophile B to form a post-modified Polymer C, and optionally using said polymer C as seed or stabiliser in a further step (3) to form a sequential Polymer D.Type: ApplicationFiled: February 4, 2013Publication date: January 15, 2015Inventors: Tijs Nabuurs, Gerardus Cornelis Overbeek, Jeffrey Stubbs, Matthew Stewart Gebhard
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Publication number: 20150010863Abstract: There is described use of a biorenewable copolymers in one or more of: in a topical and/or personal care composition, as a binder for toner, as an encapsulating agent for a colorant, as a hybrid colorant, as additive for sheet moulding compounds, as a plastic pigment, as a filler for composite materials such as concrete, as a filler for coatings and/or waxes; and/or as a spacer in a display; where the biorenewable copolymer comprises (a) at least 8. 5 wt-% preferably >=20 wt-% of a higher itaconate diester (preferably dibutyl itaconate—DBI); (b) less than 23 wt-% acid monomer but also sufficient to have an acid value less than 150 mg KOH/g of polymer, (c) optionally with less than 50 wt-% of other itaconate monomers, and (d) optionally less than 77 wt-% of other monomers not (a) to (c). The DBI may be biorenewable. One embodiment is an aqueous dispersion of vinyl sequential polymer of two phases: A) 40 to 90 wt-% of a vinyl polymer A with Tg from ?50 to 30° C.Type: ApplicationFiled: February 4, 2013Publication date: January 8, 2015Inventors: Tijs Nabuurs, Gerardus Cornelis Overbeek, Jeffrey Stubbs, Matthew Stewart Gebhard
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Publication number: 20150005442Abstract: There are described vinyl sequential copolymers (and processes for making them) comprising (a) at least 8. 5 wt-% preferably >=20 wt-% of a higher itaconate diester (preferably dibutyl itaconate—DBI); (b) less than 23 wt-% acid monomer but also sufficient to have an acid value less than 150 mg KOH/g of polymer, (c) optionally with less than 50 wt-% of other itaconate monomers, and (d) optionally less than 77 wt-% of other monomers not (a) to (c). The DBI may be biorenewable. One embodiment is an aqueous dispersion of the vinyl sequential polymer of two phases: A) 40 to 90 wt-% of a vinyl polymer A with Tg from ?50 to 30° C.; and B) 10 to 60 wt-% of a vinyl polymer B with Tg from 50 to 130° C.; where DBI is used to prepare A and/or B and polymer A has from 0.1 to 10 wt-% of at least one acid-functional olefinically unsaturated monomer.Type: ApplicationFiled: February 4, 2013Publication date: January 1, 2015Applicant: DSM IP ASSETS B.V.Inventors: Tijs Nabuurs, Gerardus Cornelis Overbeek, Jeffrey Stubbs, Matthew Stewart Gebhard
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Publication number: 20140377464Abstract: There are described a dispersion of polymeric beads where the beads comprise a copolymer composition comprising (preferably consisting essentially of): copolymers (and processes for making them) comprising (a) at least 8.5 wt-% preferably >=20 wt-% of a higher itaconate diester (preferably dibutyl itaconate—DBI); (b) less than 23 wt-% acid monomer but also sufficient to have an acid value less than 150 mg KOH/g of polymer, (c) optionally with less than 50 wt-% of other itaconate monomers, and (d) optionally less than 77 wt-% of other monomers not (a) to (c). The DBI may be biorenewable. A further embodiment is an aqueous suspension polymerisation process for preparing vinyl polymer beads from olefinically unsaturated monomers and a free-radical initiator, where at least 10 wt-% of the monomer is DBI.Type: ApplicationFiled: February 4, 2013Publication date: December 25, 2014Inventors: Tijs Nabuurs, Gerardus Cornelis Overbeek, Jeffrey Stubbs, Matthew Stewart Gebhard
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Patent number: 8877852Abstract: An organic polymer including internal pendant phosphorous acid groups at a level of >0.25% phosphorus by weight based on the weight of said organic polymer, the phosphorus acid groups being separated from the backbone of the organic polymer by no more than 2 alkylene glycol units, the organic polymer having an acid number of from 100 to 1,000, and a Mw of from 1,000 to 75,000, wherein the organic polymer has been formed by emulsion polymerization from at least one ethylenically unsaturated monomer is provided. Compositions further including an emulsion polymer including from 0.05% to 2% phosphorous, present as pendant phosphorous acid groups, by weight based on the weight of the emulsion polymer, and, optionally, an inorganic particle are also provided as are processes related to the compositions.Type: GrantFiled: December 3, 2007Date of Patent: November 4, 2014Assignee: Rohm and Haas CompanyInventors: James Charles Bohling, Matthew Stewart Gebhard, Thomas Glenn Madle, Alvin Michael Maurice, Robert Joseph Pafford, IV, William Douglas Rohrbach
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Publication number: 20080146724Abstract: An organic polymer including internal pendant phosphorous acid groups at a level of >0.25% phosphorus by weight based on the weight of said organic polymer, the phosphorus acid groups being separated from the backbone of the organic polymer by no more than 2 alkylene glycol units, the organic polymer having an acid number of from 100 to 1,000, and a Mw of from 1,000 to 75,000, wherein the organic polymer has been formed by emulsion polymerization from at least one ethylenically unsaturated monomer is provided. Compositions further including an emulsion polymer including from 0.05% to 2% phosphorous, present as pendant phosphorous acid groups, by weight based on the weight of the emulsion polymer, and, optionally, an inorganic particle are also provided as are processes related to the compositions.Type: ApplicationFiled: December 3, 2007Publication date: June 19, 2008Inventors: James Charles Bohling, Matthew Stewart Gebhard, Thomas Glenn Madle, Alvin Michael Maurice, Robert Joseph Pafford, William Douglas Rohrbach
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Patent number: 7265166Abstract: An aqueous polymer composition is provided containing select levels of hard polymer and soft polymer, wherein the hard polymer and the soft polymer are contained as dispersed particles. Portions of the hard polymer and optionally, the soft polymer, have select chemical groups. The aqueous polymer composition also contains composite particles formed from pigment particles and a plurality of polymer particles having the select chemical groups. The aqueous polymer composition is useful for preparing coatings having a combination of improved hiding, low temperature film formation, and hardness properties, such as dirt pickup resistance. Methods to prepare and to use the aqueous polymer composition are also provided.Type: GrantFiled: July 2, 2004Date of Patent: September 4, 2007Assignee: Rohm and Haas CompanyInventors: Matthew Stewart Gebhard, Ward Thomas Brown
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Patent number: 7235603Abstract: An ambient curable aqueous dispersion of polymer particles containing pendant ethylenically unsaturated side chains; a method of applying to a substrate a coating composition containing the aqueous dispersion of polymer particles; and a method of making the aqueous dispersion of polymer particles are provided.Type: GrantFiled: March 17, 2004Date of Patent: June 26, 2007Assignee: Rohm and Haas CompanyInventors: Thomas Glenn Madle, Matthew Stewart Gebhard, Chao-Jen Chung, Gary David Greenblatt
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Patent number: 7101921Abstract: A polymer composition including polymer particles containing a first polymer and a second polymer is disclosed. The first polymer has a crosslinked core and has a glass transition temperature in the range of ?30° C. to 100° C. The second polymer containing select crosslinking groups and has a glass transition temperature in the range of ?10° C. to less than 18° C. A process to prepare the polymer composition is provided. Also provided are a coated article containing a coating prepared from the polymer composition and a method of preparing the coated article. The polymer composition has good low temperature film formation and provides a film with an acceptable level of hardness.Type: GrantFiled: October 11, 2002Date of Patent: September 5, 2006Assignee: Rohm and Haas CompanyInventors: Steven Scott Edwards, Matthew Stewart Gebhard, Allen Philip Marks, Alvin Michael Maurice
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Patent number: 6942898Abstract: An aqueous coating composition having improved adhesion to friable surfaces including an emulsion polymer of certain compositions and certain acid numbers having a glass transition temperature of ?20 C to 100 C and an average particle diameter less than 120 nanometers; and 0.25-10%, by weight based on emulsion polymer weight, water-soluble alkoxylated amine is provided. In addition a method for for improving adhesion to friable surfaces by using the aqueous coating compositions of the invention is provided.Type: GrantFiled: July 10, 2003Date of Patent: September 13, 2005Assignee: Rohm and Haas CompanyInventors: Matthew Stewart Gebhard, Bradley Keith Hageman
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Publication number: 20040198903Abstract: An ambient curable aqueous dispersion of polymer particles containing pendant ethylenically unsaturated side chains; a method of applying to a substrate a coating composition containing the aqueous dispersion of polymer particles; and a method of making the aqueous dispersion of polymer particles are provided.Type: ApplicationFiled: March 17, 2004Publication date: October 7, 2004Inventors: Thomas Glenn Madle, Matthew Stewart Gebhard, Chao-Jen Chung, Gary David Greenblatt