Patents by Inventor Navin Tilara

Navin Tilara 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: 11518893
    Abstract: Disclosed herein are a more efficient method for manufacturing paints and a universal extender pigment grind that can be used for the paints in the same paint line as well as in different paint lines, while producing paints with similar properties as paints manufactured under traditional manufacturing techniques. The universal extender pigment grind comprises a minimum amount of diatomaceous earth.
    Type: Grant
    Filed: November 20, 2018
    Date of Patent: December 6, 2022
    Assignee: Columbia Insurance Company
    Inventors: Robert J. Sheerin, Navin Tilara, Michael Bochnik, Gregory Molfetta
  • Patent number: 11045565
    Abstract: Disclosed herein are methods for pasteurizing architectural coating compositions using heat, radiation or other energy sources without additionally polymerizing the compositions and storing same.
    Type: Grant
    Filed: April 1, 2020
    Date of Patent: June 29, 2021
    Assignee: Columbia Insurance Company
    Inventors: Robert Sheerin, David L. Siegfried, Wilbur Mardis, John Ritzke, Navin Tilara
  • Publication number: 20200230268
    Abstract: Disclosed herein are methods for pasteurizing architectural coating compositions using heat, radiation or other energy sources without additionally polymerizing the compositions and storing same.
    Type: Application
    Filed: April 1, 2020
    Publication date: July 23, 2020
    Inventors: Robert Sheerin, David L. Siegfried, Wilbur Mardis, John Ritzke, Navin Tilara
  • Publication number: 20200157363
    Abstract: Disclosed herein are a more efficient method for manufacturing paints and a universal extender pigment grind that can be used for the paints in the same paint line as well as in different paint lines, while producing paints with similar properties as paints manufactured under traditional manufacturing techniques. The universal extender pigment grind comprises a minimum amount of diatomaceous earth.
    Type: Application
    Filed: November 20, 2018
    Publication date: May 21, 2020
    Inventors: Robert J. Sheerin, Navin Tilara, Michael Bochnik, Gregory Molfetta
  • Patent number: 10639386
    Abstract: Disclosed herein are methods for pasteurizing architectural coating compositions using heat, radiation or other energy sources without additionally polymerizing the compositions and storing same.
    Type: Grant
    Filed: November 25, 2015
    Date of Patent: May 5, 2020
    Assignee: Columbia Insurance Company
    Inventors: Robert Sheerin, David L. Siegfried, Wilbur Mardis, John Ritzke, Navin Tilara
  • Patent number: 10538675
    Abstract: Disclosed herein is a polymeric paint additive that increases the open time and the flow and leveling of paint compositions, as well as, maintaining/improving paint film properties such as scrub resistance, water sensitivity, surfactant leaching and stain removal. The polymeric open time additive preferably has a high glass transition temperature, e.g., above 100° C., as determined by the well-known Fox's equation, and molecular weight of less than 20,000 Daltons (number average molecular weight). The particle size of the inventive polymeric open time additive is in the range of about 130 nm to about 230 nm (volume average), prior to being dissolved in a basic solution, such as an aqueous architectural composition.
    Type: Grant
    Filed: June 19, 2018
    Date of Patent: January 21, 2020
    Assignee: Columbia Insurance Company
    Inventors: Gianna Pastena, Hrire Gharapetian, Navin Tilara
  • Publication number: 20190382593
    Abstract: Disclosed herein is a polymeric paint additive that increases the open time and the flow and leveling of paint compositions, as well as, maintaining/improving paint film properties such as scrub resistance, water sensitivity, surfactant leaching and stain removal. The polymeric open time additive preferably has a high glass transition temperature, e.g., above 100° C., as determined by the well-known Fox's equation, and molecular weight of less than 20,000 Daltons (number average molecular weight). The particle size of the inventive polymeric open time additive is in the range of about 130 nm to about 230 nm (volume average), prior to being dissolved in a basic solution, such as an aqueous architectural composition.
    Type: Application
    Filed: June 19, 2018
    Publication date: December 19, 2019
    Inventors: Gianna Pastena, Hrire Gharapetian, Navin Tilara
  • Patent number: 9994722
    Abstract: Disclosed herein is a method for adjusting factory-made tintable paints at the point of sale by adding at least one gloss modifier to the factory-made tintable paints without substantially changing the amount of opacifying pigments in the tintable paints, so that a single color prescription can be used to tint the paints to a single color for any gloss or sheen. Such same color paints should have a color difference of less than 2.0 CIEDE2000 units. Also disclosed is an aqueous gloss reducer that contains mostly a matting agent with substantially no latex resin and substantially no opacifying pigments.
    Type: Grant
    Filed: September 25, 2015
    Date of Patent: June 12, 2018
    Assignee: Columbia Insurance Company
    Inventors: Robert J. Sheerin, Navin Tilara, Michael Bochnik, Stefanie Iannaconne, Samantha Marie Mascetti
  • Publication number: 20170354751
    Abstract: Disclosed herein are methods for pasteurizing architectural coating compositions using heat, radiation or other energy sources without additionally polymerizing the compositions and storing same.
    Type: Application
    Filed: November 25, 2015
    Publication date: December 14, 2017
    Inventors: Robert Sheerin, David L. Siegfried, Wilbur Mardis, John Ritzke, Navin Tilara
  • Patent number: 9790374
    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: Grant
    Filed: June 3, 2011
    Date of Patent: October 17, 2017
    Assignee: Columbia Insurance Company
    Inventors: Yue Chen, Yong Yang, Robert J. Sheerin, Jean Fredrick Mauck, Navin Tilara, Johanna Garcia de Visicaro
  • Patent number: 9688800
    Abstract: The present invention relates to a hybrid latex composition containing polymer particles that are polymerized in at least two stages including a first phase acrylic core polymer, and a second phase vinyl acrylic shell polymer including a monomer that is crosslinkable under ambient conditions. Paint compositions and architectural coatings containing the latex composition according to the invention are also described herein, as well as methods for making the same.
    Type: Grant
    Filed: July 7, 2014
    Date of Patent: June 27, 2017
    Assignee: Columbia Insurance Company
    Inventors: Robert J. Sheerin, Hrire Gharapetian, Navin Tilara, Kimberly Hamilton
  • Publication number: 20170088723
    Abstract: Disclosed herein is a method for adjusting factory-made tintable paints at the point of sale by adding at least one gloss modifier to the factory-made tintable paints without substantially changing the amount of opacifying pigments in the tintable paints, so that a single color prescription can be used to tint the paints to a single color for any gloss or sheen. Such same color paints should have a color difference of less than 2.0 CIEDE2000 units. Also disclosed is an aqueous gloss reducer that contains mostly a matting agent with substantially no latex resin and substantially no opacifying pigments.
    Type: Application
    Filed: September 25, 2015
    Publication date: March 30, 2017
    Inventors: Robert J. Sheerin, Navin Tilara, Michael Bochnik, Stefanie Iannaconne, Samantha Marie Mascetti
  • Patent number: 9505922
    Abstract: The present invention relates to self-coalescing latexes that incorporate film fat ing polymers that are low molecular weight polymers that are compatible with the latex and act as thin plasticizers penetrating through the remainder of the latex particle and aiding in the coalescence of the remaining polymers. In a preferred embodiment, the self-coalescing latex is a sequentially polymerized polymer having at least a core, a shell and a skin. The film forming polymers are formed of monomers substantially the same as the monomers of the shell but having average weighted molecular weights substantially less than the polymers of the shell. The present invention also relates to the method of polymerizing the self-coalescing latex of the current invention, which largely results from the addition of a substantial amount of chain transfer agent to a remaining portion, about 15% or less, of the monomer pre-emulsion prior to polymerization.
    Type: Grant
    Filed: May 15, 2012
    Date of Patent: November 29, 2016
    Assignee: Columbia Insurance Company
    Inventors: Hrire Gharapetian, Navin Tilara, Robert Sheerin
  • Publication number: 20160002456
    Abstract: The present invention relates to a hybrid latex composition containing polymer particles that are polymerized in at least two stages including a first phase acrylic core polymer, and a second phase vinyl acrylic shell polymer including a monomer that is crosslinkable under ambient conditions. Paint compositions and architectural coatings containing the latex composition according to the invention are also described herein, as well as methods for making the same.
    Type: Application
    Filed: July 7, 2014
    Publication date: January 7, 2016
    Inventors: Robert J. Sheerin, Hrire Gharapetian, Navin Tilara, Kimberly Hamilton
  • Patent number: 8907002
    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: Grant
    Filed: December 20, 2012
    Date of Patent: December 9, 2014
    Assignee: Columbia Insurance Company
    Inventors: Yue Chen, Navin Tilara, Jean Frederick Mauck, Shijun Yang, Yakov Freidzon, Robert J. Sheerin
  • Publication number: 20140235752
    Abstract: The present invention relates to self-coalescing latexes that incorporate film fat ing polymers that are low molecular weight polymers that are compatible with the latex and act as thin plasticizers penetrating through the remainder of the latex particle and aiding in the coalescence of the remaining polymers. In a preferred embodiment, the self-coalescing latex is a sequentially polymerized polymer having at least a core, a shell and a skin. The film forming polymers are formed of monomers substantially the same as the monomers of the shell but having average weighted molecular weights substantially less than the polymers of the shell. The present invention also relates to the method of polymerizing the self-coalescing latex of the current invention, which largely results from the addition of a substantial amount of chain transfer agent to a remaining portion, about 15% or less, of the monomer pre-emulsion prior to polymerization.
    Type: Application
    Filed: May 15, 2012
    Publication date: August 21, 2014
    Applicant: Columbia Insurance Company
    Inventors: Hrire Gharapetian, Navin Tilara, Robert Sheerin
  • 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: 20120165428
    Abstract: The present invention relates to water soluble open time extenders, which are mixed with an architectural coating, such as aqueous latex paints, to increase the coating's open time and crosslink to the architectural coating upon drying. The open time extender comprises neutralized water soluble polymers with hydrophobic, hydrophilic and cross-linkable monomers, and at least one crosslinking agent. The open time extender also comprises water and the total solid content of the open time extender is less than about 25% by weight.
    Type: Application
    Filed: December 23, 2010
    Publication date: June 28, 2012
    Applicant: Columbia Insurance Company
    Inventors: Navin Tilara, Hrire Gharapetian, David L. Siegfried, Robert 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
  • 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