Patents by Inventor John J. Rabasco

John J. Rabasco 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: 10968342
    Abstract: The present invention relates to a process for preparing an aqueous dispersion of neutralized multistage polymer particles comprising the steps of contacting under emulsion polymerization conditions a) an aqueous dispersion of first polymer particles with b) first monomers to form an aqueous dispersion of 2-stage polymer particles; then contacting under emulsion polymerization conditions the aqueous dispersion of 2-stage polymer particles with second monomers comprising to form an unneutralized aqueous dispersion of 3-stage polymer particles; then neutralizing the unneutralized aqueous dispersion of 3-stage polymer particles with a base to form an aqueous dispersion of neutralized 3-stage polymer particles, wherein the first and second monomers form a shell having a calculated Tg of less than 50° C. The process of the present invention is useful in preparing a composition that is useful as an open time additive in coatings formulations.
    Type: Grant
    Filed: July 15, 2019
    Date of Patent: April 6, 2021
    Assignee: Rohm and Haas Company
    Inventors: Jonathan DeRocher, Andrew Hejl, Jessica Levin, John J. Rabasco, Antony K. Van Dyk, Kimy Yeung
  • Publication number: 20210040291
    Abstract: The present invention relates to a composition comprising a hydrophobically modified alkylene oxide polymer having a hydrophobic portion characterized by the following group: where R1 and x are as defined herein; and a) an aqueous dispersion of thermoplastic polymer particles imbibed with a thermosettable compound functionalized with structural units of an anti-agglomerating monomer; and/or b) a curing agent. The composition of the present invention is useful for improving Brookfield viscosity and sag resistance in coatings arising from, for example, 2-component acrylic-epoxy hybrid systems cured with a curing agent.
    Type: Application
    Filed: July 23, 2020
    Publication date: February 11, 2021
    Inventors: John J. Rabasco, Wenqin Wang
  • Publication number: 20210017380
    Abstract: The present invention relates to a composition comprising an aqueous solution of a) a hydrophobically modified alkylene oxide polymer comprising a hydrophobic portion functionalized with a protonated secondary or tertiary amine or a quaternary ammonium salt and b) an acid and a salt thereof, which acid is phosphoric acid, nitrilotris(methylene)triphosphonic acid, hydrochloric acid, or sulfuric acid. The composition of the present invention is useful for the preparation of an associative thickener that can be stored for long periods, in the absence of ancillary biocides, without spoilage from biodeteriogenic attack.
    Type: Application
    Filed: July 9, 2020
    Publication date: January 21, 2021
    Inventors: Deborah D. Graves, Jessica R. Levin, John J. Rabasco, Wenqin Wang, Adrian R. Ward
  • Patent number: 10808074
    Abstract: The present invention relates to a compound having the following structure I: where Ar1, Ar2; R1, m, and n are defined herein. The compound of the present invention is useful as an open time additive in waterborne coatings compositions, particularly waterborne paint compositions.
    Type: Grant
    Filed: June 12, 2018
    Date of Patent: October 20, 2020
    Assignees: Rohm and Haas Company, Dow Global Technologies LLC
    Inventors: Edward D. Daugs, John J. Rabasco, Antony K. Van Dyk, Tianlan Zhang
  • Patent number: 10800932
    Abstract: The present invention relates to a composition comprising a) an aqueous dispersion of polymer particles and b) a hydrophobically modified poly(oxyalkylene-urethane) rheology modifier having a 1) backbone; and 2) a hydrophobic portion represented by Fragment I: where R and R1 are defined herein. The composition is useful as an aqueous coating formulation that exhibits a highly shear thinning rheology profile suitable for spray applications to provide high sag resistance without adverse impact on gloss or corrosion resistance.
    Type: Grant
    Filed: January 23, 2019
    Date of Patent: October 13, 2020
    Assignees: Rohm and Haas Company, Dow Global Technologies LLC
    Inventors: John J. Rabasco, Duane R. Romer, Joey W. Storer, Antony K. Van Dyk, Wenqin Wang, Mark Langille, Jessica Levin
  • Patent number: 10800888
    Abstract: The present invention relates to a compound having the following structure I: where Ar1, R, R1, E, m, n, x, y, p, and s are defined herein. The compound of the present invention is useful as an open time additive in waterborne coatings compositions, particularly waterborne paint compositions.
    Type: Grant
    Filed: June 25, 2018
    Date of Patent: October 13, 2020
    Assignees: Rohm and Haas Company, Dow Global Technologies, LLC
    Inventors: Edward D. Daugs, John J. Rabasco, Antony K. Van Dyk, Tianlan Zhang
  • Publication number: 20200262975
    Abstract: The present invention relates to a compound comprising a hydrophobically modified poly(oxyalkylene-urethane) having a hydrophobic fragment represented by Structure I: where Ar1, Ar2; R1, m, and n are defined herein. The compound of the present invention provides viscosity stability upon tinting for paints containing a hydrophobically modified poly(oxyalkylene-urethane) rheology modifier, more particularly a HEUR rheology modifier.
    Type: Application
    Filed: January 31, 2020
    Publication date: August 20, 2020
    Inventors: John J. Rabasco, Daniel A. Saucy, Antony K. Van Dyk
  • Patent number: 10703841
    Abstract: The present invention relates to a composition comprising an aqueous dispersion of acrylic based polymer particles; less than 15 PVC of a pigment; and a hydrophobically modified poly(oxyalkylene-urethane) rheology modifier having a hydrophobic portion represented by Structure I: Where R, R1, R2, m an n are defined herein. The composition provides viscosity stability for paint formulations containing a HEUR rheology modifier.
    Type: Grant
    Filed: November 2, 2018
    Date of Patent: July 7, 2020
    Assignees: Rohm and Haas Company, Dow Global Technologies LLC
    Inventors: John J. Rabasco, Duane R. Romer, Daniel A. Saucy, Antony K. Van Dyk
  • Patent number: 10654964
    Abstract: A composition comprising: (a) a hydrophilic polyurethane comprising polymerized units of: (i) a water-soluble polyol having hydroxyl functionality from two to four and a weight-average molecular weight from 800 to 16,000; and (ii) an aliphatic polyisocyanate having isocyanate functionality from two to six; wherein polymerized ethylene oxide units comprise at least 85 wt % of said hydrophilic polyurethane; and at least one of: (b) a saccharide having at least 5 hydroxyl groups and Mw from 300 to 4,000; (c) a dispersant polymer having Mw from 700 to 50,000 and from 10 to 55 wt % polymerized residues of C3-C6 carboxylic acid monomer and (d) a surfactant having HLB>11 and 12 to 100 polymerized units of ethylene oxide.
    Type: Grant
    Filed: June 27, 2017
    Date of Patent: May 19, 2020
    Assignees: Dow Global technologies LLC, Rohm and Haas Company
    Inventors: David J. Brennan, Gregoire Cardoen, Jonathan DeRocher, John J. Rabasco, Antony K. Van Dyk, Kimy Yeung
  • Patent number: 10563072
    Abstract: The present invention relates to a deep base paint composition comprising a binder (an aqueous dispersion of polymer particles), an associative thickener with a hydrophobic portion having a calculated log P in the range of from 2.7 to 4.8. The composition of the present invention provides a mechanism for decreasing the viscosity sensitivity of a base paint to colorant addition.
    Type: Grant
    Filed: October 16, 2017
    Date of Patent: February 18, 2020
    Assignee: Rohm and Haas Company
    Inventors: Tara Conley, Mark Langille, James P. Maher, John J. Rabasco
  • Publication number: 20200024440
    Abstract: The present invention relates to a process for preparing an aqueous dispersion of neutralized multistage polymer particles comprising the steps of: 1) contacting under emulsion polymerization conditions a) a aqueous dispersion of first polymer particles comprising structural units of a carboxylic acid monomer, and structural units of a nonionic monomer with b) first monomers comprising styrene or methyl methacrylate or a combination thereof, and a carboxylic acid monomer; to form an aqueous dispersion of 2-stage polymer particles; then 2) contacting under emulsion polymerization conditions the aqueous dispersion of first multistage polymer particles with second monomers comprising a) methyl methacrylate; b) n-butyl acrylate, 2-ethylhexyl acrylate, ethyl acrylate, or n-butyl methacrylate, or a combination thereof; c) a carboxylic acid monomer; and d) less than 20 weight percent styrene, to form an unneutralized aqueous dispersion of 3-stage polymer particles; then 3) neutralizing the unneutralized aqueous disp
    Type: Application
    Filed: July 15, 2019
    Publication date: January 23, 2020
    Inventors: Jonathan DeRocher, Andrew Hejl, Jessica Levin, John J. Rabasco, Antony K. Van Dyk, Kimy Yeung
  • Publication number: 20200024458
    Abstract: The present invention relates to a composition comprising an aqueous dispersion of multistage polymer particles with a first phase comprising structural units of a carboxylic acid monomer and a nonionic ethylenically unsaturated monomer; and a second phase with a calculated Tg of less than 50° C. and comprising a mixture of polymers which together comprise structural units of styrene or methyl methacrylate or both; structural units of one or of n-butyl acrylate, 2-ethylhexyl acrylate, ethyl acrylate, or n-butyl methacrylate; and structural units of a carboxylic acid monomer. The composition is useful as an open time additive in coatings formulations.
    Type: Application
    Filed: July 15, 2019
    Publication date: January 23, 2020
    Inventors: Jonathan DeRocher, Andrew Hejl, Jessica Levin, John J. Rabasco, Antony K. Van Dyk, Kimy Yeung
  • Patent number: 10450472
    Abstract: The present invention relates to a composition comprising an aqueous solution or dispersion of an associative thickener having a poly(oxyalkylene-urethane) backbone and at least one terminal hydrophobe comprising from 3 to 20 structural units of an acrylate, a methacrylate, a styrene, or a combination thereof. Brookfield, ICI, and KU viscosity profiles can be tuned with greater ease with the composition of the present invention.
    Type: Grant
    Filed: August 30, 2017
    Date of Patent: October 22, 2019
    Assignee: Rohm and Haas Company
    Inventors: Douglas R. Hawkins, John J. Rabasco, Antony K. Van Dyk
  • Publication number: 20190233663
    Abstract: The present invention relates to a composition comprising a) an aqueous dispersion of polymer particles and b) a hydrophobically modified poly(oxyalkylene-urethane) rheology modifier having a 1) backbone; and 2) a hydrophobic portion represented by Fragment I: —O—R—S?R1?mH?? I where R and R1 are defined herein. The composition is useful as an aqueous coating formulation that exhibits a highly shear thinning rheology profile suitable for spray applications to provide high sag resistance without adverse impact on gloss or corrosion resistance.
    Type: Application
    Filed: January 23, 2019
    Publication date: August 1, 2019
    Inventors: John J. Rabasco, Duane R. Romer, Joey W. Storer, Antony K. Van Dyk, Wenqin Wang, Mark Langille, Jessica Levin
  • Publication number: 20190202964
    Abstract: A composition comprising: (a) a hydrophilic polyurethane comprising polymerized units of: (i) a water-soluble polyol having hydroxyl functionality from two to four and a weight-average molecular weight from 800 to 16,000; and (ii) an aliphatic polyisocyanate having isocyanate functionality from two to six; wherein polymerized ethylene oxide units comprise at least 85 wt % of said hydrophilic polyurethane; and at least one of: (b) a saccharide having at least 5 hydroxyl groups and Mw from 300 to 4,000; (c) a dispersant polymer having Mw from 700 to 50,000 and from 10 to 55 wt % polymerized residues of C3-C6 carboxylic acid monomer and (d) a surfactant having HLB>11 and 12 to 100 polymerized units of ethylene oxide.
    Type: Application
    Filed: June 27, 2017
    Publication date: July 4, 2019
    Applicants: Rohm and Haas Company, Dow Global Technologies LLC
    Inventors: David J. Brennan, Gregoire Cardoen, Jonathan DeRocher, John J. Rabasco, Antony K. Van Dyk, Kimy Yeung
  • Publication number: 20190135964
    Abstract: The present invention relates to a composition comprising an aqueous dispersion of acrylic based polymer particles; less than 15 PVC of a pigment; and a hydrophobically modified poly(oxyalkylene-urethane) rheology modifier having a hydrophobic portion represented by Structure I: Where R, R1, R2, m an n are defined herein. The composition provides viscosity stability for paint formulations containing a HEUR rheology modifier.
    Type: Application
    Filed: November 2, 2018
    Publication date: May 9, 2019
    Inventors: John J. Rabasco, Duane R. Romer, Daniel A. Saucy, Antony K. Van Dyk
  • Publication number: 20180371174
    Abstract: The present invention relates to a compound having the following structure I: where Ar1, R, R1, E, m, n, x, y, p, and s are defined herein. The compound of the present invention is useful as an open time additive in waterborne coatings compositions, particularly waterborne paint compositions.
    Type: Application
    Filed: June 25, 2018
    Publication date: December 27, 2018
    Inventors: Edward D. Daugs, John J. Rabasco, Antony K. Van Dyk, Tianlan Zhang
  • Publication number: 20180355107
    Abstract: The present invention relates to a compound having the following structure I: where Ar1, Ar2; R1, m, and n are defined herein. The compound of the present invention is useful as an open time additive in waterborne coatings compositions, particularly waterborne paint compositions.
    Type: Application
    Filed: June 12, 2018
    Publication date: December 13, 2018
    Inventors: Edward D. Daugs, John J. Rabasco, Antony K. Van Dyk, Tianlan Zhang
  • Publication number: 20180112086
    Abstract: The present invention relates to a deep base paint composition comprising a binder (an aqueous dispersion of polymer particles), an associative thickener with a hydrophobic portion having a calculated log P in the range of from 2.7 to 4.8. The composition of the present invention provides a mechanism for decreasing the viscosity sensitivity of a base paint to colorant addition.
    Type: Application
    Filed: October 16, 2017
    Publication date: April 26, 2018
    Inventors: Tara Conley, Mark Langille, James P. Maher, John J. Rabasco
  • Publication number: 20180057698
    Abstract: The present invention relates to a composition comprising an aqueous solution or dispersion of an associative thickener having a poly(oxyalkylene-urethane) backbone and at least one terminal hydrophobe comprising from 3 to 20 structural units of an acrylate, a methacrylate, a styrene, or a combination thereof. Brookfield, ICI, and KU viscosity profiles can be tuned with greater ease with the composition of the present invention.
    Type: Application
    Filed: August 30, 2017
    Publication date: March 1, 2018
    Inventors: Douglas R. Hawkins, John J. Rabasco, Antony K. Van Dyk