Patents by Inventor Robert J. Sheerin

Robert J. Sheerin 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).

  • Publication number: 20140179859
    Abstract: The present invention is directed to a coating composition comprising a vinyl acrylic copolymer latex wherein said copolymer latex has a water contact angle of about 60° or higher on the dried latex film surface, wherein said copolymer latex further has a specific water vapor permeability of about 0.5 mg/cm2/mm/24 hr. The invention is also directed to the copolymer latex itself. Further, the invention is a method of improving a coating's ability to withstand a high humidity environment comprising adding a vinyl acrylic copolymer latex to the coating composition wherein said copolymer latex has a water contact angle of about 60° or higher on the dried latex film surface, and wherein said copolymer latex further has a specific water vapor permeability of about 0.5 mg/cm2/mm/24 hr.
    Type: Application
    Filed: December 20, 2012
    Publication date: June 26, 2014
    Inventors: Yue Chen, Navin Tilara, Jean Frederick Mauck, Shijun Yang, Yakov Freidzon, Robert J. Sheerin
  • Publication number: 20140179839
    Abstract: The invention relates to colorant compositions, and aqueous latex paints or other water-borne coatings made from them, which have a mitigated environmental impact. Levels of solvents, additives and impurities comprising volatile non-aqueous constituents, alkylphenol ethoxylates (and derivatives thereof), crystalline silica, and/or formaldehyde are decreased relative to those typical of preceding generations of colorants and tinted aqueous latex paints and other water-borne coatings. On the other hand, paint-performance as indicated by any of Stormer viscosity stabilization, rheological profile flow/leveling and sag resistance, water sensitivity and color transfer resistance is comparable to a paint in which the aforementioned solvents, additives and impurities are still present.
    Type: Application
    Filed: March 5, 2010
    Publication date: June 26, 2014
    Applicant: Columbia Insurance Company
    Inventors: Yong Yang, Mohammed Asif, Robert J. Sheerin
  • Publication number: 20140171585
    Abstract: The present invention relates to a grafted pigment dispersing polymeric additive for opacifying pigments, prepared by polymerizing monomers in the presence of a polymeric pigment dispersant. The polymeric pigment dispersant has low molecular weight, high acid number and is dissolvable in alkali solution. When incorporated into paint compositions, hiding is improved with less opacifying pigments.
    Type: Application
    Filed: December 18, 2012
    Publication date: June 19, 2014
    Applicant: Columbia Insurance Company
    Inventors: Gary Dandreaux, Kevin Scanlon, Robert J. Sheerin, Ashley Brewer
  • Patent number: 8507579
    Abstract: The present invention relates to an aqueous coating composition comprising a treated latex polymer dispersion with less than about 50 ppm of unreacted monomers. The latex polymer dispersion can be treated by various means, including stripping and chasing, to remove unreacted monomers from the dispersion. Unreacted monomers significantly contribute to paint odor. In an innovative aspect of the present invention, the synergistic combination of the treated latex dispersion with pigments and other low or zero-VOC additives results in an aqueous coating composition with de minimis levels of volatile emissions, low odor, and paint performance comparable to premium latex paints.
    Type: Grant
    Filed: June 12, 2009
    Date of Patent: August 13, 2013
    Assignee: Columbia Insurance Company
    Inventors: Robert J. Sheerin, Jean F. Mauck, Hrire Gharapetian, Gordon Kotora
  • Publication number: 20130079456
    Abstract: The present invention comprises a hybrid latex polymer composition with one or more hydrophobic compound which is a solid or has a 50% distillation temperature of at least 200° C. and one or more matrix polymer, wherein the hydrophobic compound is entrapped in the structure of the matrix polymer. Further, the invention is a method of improving resistance to water staining and color rub-off in latex paints by including a hybrid latex polymer.
    Type: Application
    Filed: April 19, 2011
    Publication date: March 28, 2013
    Inventors: Yong Yang, Vincent R. Libero, Luz Clarena Shavel, Glenn M. Cooper, Johanna L. Garcia de Visicaro, George M. Amrich, Robert J. Sheerin, Steve Minassian
  • Patent number: 8329807
    Abstract: A colorant composition containing a hydrophobic latex polymer component to impart resistance to water-softening and -staining in a paint film made from a latex paint formulated with the colorant composition, as well as the paint and paint film, and methods for making the foregoing.
    Type: Grant
    Filed: July 29, 2005
    Date of Patent: December 11, 2012
    Assignee: Columbia Insurance Company
    Inventors: Yong Yang, Mohammad Asif, Robert J. Sheerin
  • Publication number: 20120142847
    Abstract: Water-borne cross-linking polymeric compositions and related embodiments, such as methods of making and using the compositions, as well as products formed with said compositions are described. For example, the water-borne composition may comprise polymers incorporating cross-linking functionality such as, but not limited to, carbonyl or epoxy functionality, and a blocked cross-linking agent, for example, a hydrazone. The cross-linking functionality does not react with the blocked cross-linking agent; however, the blocked cross-linking agent is capable of reacting with the alternative form cross-linking agent such as, but not limited to, a hydrazide, to yield a cross-linked polymer. The alternative form cross-linking agent may be formed in an equilibrium reaction including the blocked cross-linking agent.
    Type: Application
    Filed: June 3, 2011
    Publication date: June 7, 2012
    Applicant: Columbia Insurance Company
    Inventors: Yong Yang, Yue Chen, Robert J. Sheerin, Jean Fredrick Mauck, Navin Tilara, Johanna Garcia de Visicaro
  • Publication number: 20110112223
    Abstract: The invention relates to colorant compositions, and aqueous latex paints or other water-borne coatings made from them, which have a mitigated environmental impact. Levels of solvents, additives and impurities comprising volatile non-aqueous constituents, alkylphenol ethoxylates (and derivatives thereof), crystalline silica, and/or formaldehyde are decreased relative to those typical of preceding generations of colorants and tinted aqueous latex paints and other water-borne coatings. On the other hand, paint-performance as indicated by any of Stormer viscosity stabilization, rheological profile flow/leveling and sag resistance, water sensitivity and color transfer resistance is comparable to a paint in which the aforementioned solvents, additives and impurities are still present.
    Type: Application
    Filed: March 5, 2010
    Publication date: May 12, 2011
    Applicant: Columbia Insurance Company
    Inventors: Yong Yang, Mohammed Asif, Robert J. Sheerin
  • Publication number: 20110098376
    Abstract: The present invention relates to an aqueous coating composition comprising a treated latex polymer dispersion with less than about 50 ppm of unreacted monomers. The latex polymer dispersion can be treated by various means, including stripping and chasing, to remove unreacted monomers from the dispersion. Unreacted monomers significantly contribute to paint odor. In an innovative aspect of the present invention, the synergistic combination of the treated latex dispersion with pigments and other low or zero-VOC additives results in an aqueous coating composition with de minimis levels of volatile emissions, low odor, and paint performance comparable to premium latex paints.
    Type: Application
    Filed: June 12, 2009
    Publication date: April 28, 2011
    Inventors: Robert J. Sheerin, Jean F. Mauck, Hrire Gharapetian, Gordon Kotora
  • Patent number: 7754801
    Abstract: The present invention relates to substrates and coating compositions disposed thereon containing improved ultraviolet degradation resistance. Specifically, these coating compositions can contain multiple UV protectants and can advantageously be used in transparent, semi-transparent, and/or translucent coatings on substrates, particularly opaque or semi-opaque substrates such as wood, e.g., in order to inhibit, to reduce, and/or to minimize UV degradation of said substrates.
    Type: Grant
    Filed: December 30, 2005
    Date of Patent: July 13, 2010
    Assignee: Columbia Insurance Company
    Inventors: Robert J. Sheerin, Navin Tilara, Hrire Gharapetian, David L. Siegfried
  • Patent number: 7750074
    Abstract: The present invention relates to copolymer surfactants and their use in, e.g., coatings such as latex paint and solvent-based paint, and to a method of dispersing colored pigments using the copolymer surfactant, colorant compositions in which at least one pigment is dispersed by a copolymer surfactant of the invention, a paint which has a colorant composition of the invention, and a method for making a paint having a colorant composition of the invention.
    Type: Grant
    Filed: December 28, 2005
    Date of Patent: July 6, 2010
    Assignee: Columbia Insurance Company
    Inventors: Yong Yang, Mohammad Asif, Robert J. Sheerin
  • Patent number: 7589158
    Abstract: The present invention relates to polymers polymerized sequentially or in stages and having varied functionality and/or monomer content as the polymerization progresses, as well as the methods for making these polymers. The polymers according to the invention can advantageously be present in aqueous emulsion or latex form and can advantageously be used in paint compositions.
    Type: Grant
    Filed: November 30, 2005
    Date of Patent: September 15, 2009
    Assignee: Columbia Insurance Company
    Inventors: Yong Yang, Navin Tilara, Robert J. Sheerin, Dan Sayre
  • Patent number: 7402627
    Abstract: The present invention relates to copolymer surfactants and their use in, e.g., coatings such as latex paint and solvent-based paint, and to a method of dispersing colored pigments using the copolymer surfactant, colorant compositions in which at least one pigment is dispersed by a copolymer surfactant of the invention, a paint which has a colorant composition of the invention, and a method for making a paint having a colorant composition of the invention.
    Type: Grant
    Filed: December 4, 2003
    Date of Patent: July 22, 2008
    Assignee: Columbia Insurance Company
    Inventors: Yong Yang, Mohammad Asif, Robert J. Sheerin