Patents by Inventor Ayumu Yokoyama

Ayumu Yokoyama 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: 20130289129
    Abstract: The present disclosure is directed to a radiation curable coating composition comprising low molecular weight polytrimethylene ether glycol. This disclosure is further directed to an antimicrobial coating layer formed from the coating composition comprising low molecular weight polytrimethylene ether glycol. The coating compositions can be used as interior and exterior top coats, basecoats, primers, primer surfacers and primer fillers. The disclosure is particularly directed to a coating composition comprising components derived from renewable resources.
    Type: Application
    Filed: October 6, 2011
    Publication date: October 31, 2013
    Applicant: US COATINGS IP CO LLC
    Inventors: Ayumu Yokoyama, Hari Babu Sunkara, Rajesh Gopalan Saliya
  • Publication number: 20130209535
    Abstract: The present disclosure is directed to a low VOC (volatile organic content) waterborne coating composition comprising low molecular weight polytrimethylene ether glycol. This disclosure is further directed to an antimicrobial coating layer formed from the coating composition comprising low molecular weight polytrimethylene ether glycol. The coating compositions can be used as interior and exterior top coats, basecoats, primers, primer surfacers and primer fillers. The low molecular weight polytrimethylene ether glycol can also be functioning as a coalescing agent. The disclosure is particularly directed to a coating composition comprising components derived from renewable resources.
    Type: Application
    Filed: March 14, 2011
    Publication date: August 15, 2013
    Applicant: U S COATINGS IP CO LLC
    Inventors: Ayumu Yokoyama, Rajesh Gopalan Saliya, Hari Babu Sunkara, Jennifer Majlak
  • Patent number: 8436081
    Abstract: The present disclosure is directed to a high film build coating composition that is capable of producing coatings being sag-free at high coating thicknesses and good appearance. This disclosure is further directed to a coating composition comprising components derived from renewable resources.
    Type: Grant
    Filed: March 14, 2011
    Date of Patent: May 7, 2013
    Assignee: U.S. Coatings IP Co. LLC.
    Inventors: Ayumu Yokoyama, Hari Babu Sunkara, Rajesh Gopalan Saliya
  • Patent number: 8415015
    Abstract: The present invention is directed to a matting agent for reducing gloss of a coating. The matting agent comprises: a) a silica component; b) a polytrimethylene ether diol; c) one or more solvents; and d) optionally, one or more polymers. This invention is further directed to a matting agent comprising components derived from renewable resources.
    Type: Grant
    Filed: April 29, 2010
    Date of Patent: April 9, 2013
    Assignee: E I du Pont de Nemours and Company
    Inventors: Ayumu Yokoyama, Rajesh Gopalan Saliya, Sheau-Hwa Ma
  • Patent number: 8410205
    Abstract: The present invention is directed to a matting agent for reducing gloss of a coating. The matting agent comprises: a) a silica component; b) a polytrimethylene ether glycol; c) one or more solvents; and d) optionally, one or more polymers. This invention is further directed to a matting agent comprising components derived from renewable resources.
    Type: Grant
    Filed: March 14, 2011
    Date of Patent: April 2, 2013
    Assignee: E I du Pont de Nemours and Company
    Inventors: Rajesh Gopalan Saliya, Ayumu Yokoyama, Hari Babu Sunkara
  • Publication number: 20130040149
    Abstract: This disclosure is directed to a process for producing a target coating having two or more coating layers over a substrate. The disclosure is also directed to a primer coating composition comprising a topcoat component and one or more flatteners. This disclosure is further directed to a multi-layer coating formed by the process disclosed herein.
    Type: Application
    Filed: May 11, 2011
    Publication date: February 14, 2013
    Applicant: EI DU PONT DE NEMOURS AND COMPANY
    Inventors: Ayumu Yokoyama, Irving D. Bell
  • Patent number: 8372905
    Abstract: The present disclosure is directed to a coating composition having low molecular weight polytrimethylene ether glycol, polymers having one or more crosslinkable functional groups and a crosslinking agent having one or more crosslinking functional groups. The coating compositions can be used as interior and exterior top coats, basecoats, primers, primer surfacers and primer fillers. The disclosure is particularly directed to a coating composition comprising components derived from renewable resources.
    Type: Grant
    Filed: March 14, 2011
    Date of Patent: February 12, 2013
    Assignee: E I du Pont de Nemours and Company
    Inventors: Ayumu Yokoyama, Hari Babu Sunkara, Rajesh Gopalan Saliya
  • Patent number: 8349407
    Abstract: The present disclosure is directed to a coating composition that is capable of producing coatings being sag-free at high coating thicknesses, having excellent adhesion to substrates, and good appearance. This disclosure is further directed to a coating composition comprising components derived from renewable resources.
    Type: Grant
    Filed: January 12, 2011
    Date of Patent: January 8, 2013
    Assignee: E I du Pont de Nemours and Company
    Inventors: Rajesh Gopalan Saliya, Ayumu Yokoyama, Patricia Mary Ellen Sormani, Sheau-Hwa Ma, Eric C. Houze, Delson Jayme Trindade
  • Publication number: 20120322931
    Abstract: The present disclosure is directed to a thermoset composition comprising a low molecular weight polytrimethylene ether glycol. This disclosure is further directed to an antimicrobial coating composition, an antimicrobial coating layer, an antimicrobial adhesive, or an antimicrobial sealant formed from the thermoset composition comprising the low molecular weight polytrimethylene ether glycol. The thermoset compositions can be used as interior and exterior top coats, basecoats, primers, primer surfacers, primer fillers, adhesives or sealants. The disclosure is particularly directed to a thermoset composition comprising components derived from renewable resources.
    Type: Application
    Filed: November 1, 2011
    Publication date: December 20, 2012
    Applicant: E. I. DU PONT DE NEMOURS AND COMPANY
    Inventors: Ayumu Yokoyama, Hari Babu Sunkara, Rajesh Gopalan Saliya
  • Publication number: 20120219805
    Abstract: The present invention is directed to a process for producing a low VOC (volatile organic compound) coating composition. The process can comprise mixing a solvent borne coating component and a low or zero VOC waterborne coating component in the presence of a low molecular weight polytrimethylene ether glycol. The present invention can be used to produce low VOC coatings for automotive original equipment manufacturing (OEM) and refinish coating applications, industrial coating applications on equipments and structures, or architectural coating applications on buildings or other structures. This disclosure is further directed to a coating composition comprising components derived from renewable resources.
    Type: Application
    Filed: February 20, 2012
    Publication date: August 30, 2012
    Applicant: E. I. DU PONT DE NEMOURS AND COMPANY
    Inventors: AYUMU YOKOYAMA, HARI BABU SUNKARA, RAJESH GOPALAN SALIYA, KARLIS ADAMSONS
  • Publication number: 20120208020
    Abstract: The present disclosure is directed to coalescing agent for waterborne coatings. The coalescing agent comprises low molecular weight polytrimethylene ether glycol having a Mn (number average molecular weight) in a range of from 100 to 490. This disclosure is further directed to a waterborne coating composition comprising the coalescing agent. The waterborne coating compositions can be used as interior and exterior top coats, basecoats, primers, primer surfacers and primer fillers. The waterborne coating compositions can be used as architecture coatings, automotive original equipment manufacturer (OEM) coatings, automotive refinish coatings, sports equipment coatings or any other coatings. The disclosure is particularly directed to a coating composition comprising components derived from renewable resources.
    Type: Application
    Filed: February 7, 2012
    Publication date: August 16, 2012
    Applicant: E.I. DU PONT DE NEMOURS AND COMPANY
    Inventors: Ayumu Yokoyama, Hari Babu Sunkara, Rajesh Gopalan Saliya
  • Publication number: 20120189764
    Abstract: The present invention is directed to a process for process for predicting gloss of a coating resulting from a wet layer of a low gloss coating composition, such as automotive OEM or refinish paint. The process includes measuring reflectance of the layer of the coating composition applied over a test substrate and then allowing the layer to dry and/or cure into a coating. Thereafter, its gloss is measured with a gloss meter. The process is repeated with varying amounts of one or flatting agents added to the composition and the reflectance vs. gloss is plotted on a graph and by using a curve fitting equation a gloss prediction curve is obtained. By measuring the reflectance of a wet layer of a target low gloss coating composition the gloss of a coating that would result from such a layer is then predicted by using the gloss prediction curve. The process is most useful during the manufacture of coating compositions, such as automotive OEM and refinishes paints.
    Type: Application
    Filed: July 27, 2011
    Publication date: July 26, 2012
    Applicant: E. I. DU PONT DE NEMOURS AND COMPANY
    Inventors: Ayumu Yokoyama, Anthony Moy
  • Publication number: 20120191416
    Abstract: The present invention is directed to a device for process for predicting gloss of a coating resulting from a wet layer of a low gloss coating composition, such as automotive OEM or refinish paint. The device includes measuring reflectance of the layer of the coating composition applied over a test substrate and then allowing the layer to dry and/or cure into a coating. Thereafter, its gloss is measured with a gloss meter. The device is repeated with varying amounts of one or flatting agents added to the composition and the reflectance vs. gloss is plotted on a graph and by using a curve fitting equation a gloss prediction curve is obtained. By measuring the reflectance of a wet layer of a target low gloss coating composition the gloss of a coating that would result from such a layer is then predicted by using the gloss prediction curve. The device is most useful during the manufacture of coating compositions, such as automotive OEM and refinishes paints.
    Type: Application
    Filed: July 27, 2011
    Publication date: July 26, 2012
    Applicant: E. I. DU PONT DE NEMOURS AND COMPANY
    Inventors: AYUMU YOKOYAMA, ANTHONY MOY
  • Publication number: 20120177916
    Abstract: The present disclosure is directed to a coating composition that is capable of producing coatings being sag-free at high coating thicknesses, having excellent adhesion to substrates, and good appearance. This disclosure is further directed to a coating composition comprising components derived from renewable resources.
    Type: Application
    Filed: January 12, 2011
    Publication date: July 12, 2012
    Applicant: E. I. DU PONT DE NEMOURS AND COMPANY
    Inventors: RAJESH GOPALAN SALIYA, AYUMU YOKOYAMA, PATRICIA MARY ELLEN SORMANI, SHEAU-HWA MA, ERIC C. HOUZE, DELSON JAYME TRINDADE
  • Publication number: 20120171478
    Abstract: The present disclosure is directed to a sag control agent comprising a reaction product of an isocyanate and a fluorinated amine. This disclosure is further directed to a coating composition comprising the sag control agent. This disclosure is also directed to a process of forming a sag-free coating layer on a substrate.
    Type: Application
    Filed: September 16, 2010
    Publication date: July 5, 2012
    Applicant: E. I. DU PONT DE NEMOURS AND COMPANY
    Inventors: Rajesh Gopalan Saliya, Ayumu Yokoyama, Sheau-Hwa Ma, Axel Hans-Joachim Herzog
  • Publication number: 20120094012
    Abstract: The present invention is directed to a method for producing a coating having a desired gloss value on a substrate. This invention is also directed to method for producing a predicted gloss value of a coating on a substrate. This invention is further directed to a method of using a matting agent comprising components derived from renewable resources.
    Type: Application
    Filed: May 5, 2010
    Publication date: April 19, 2012
    Applicant: E.I. Du Pont De Nemours and Company
    Inventors: Ayumu Yokoyama, Rajesh Gopalan Saliya, Sheau-Hwa Ma
  • Patent number: 8153711
    Abstract: The present disclosure relates to a sag control composition consisting essentially of the reaction product of an amine and a polyisocyanate and polytrimethylene ether diol. The sag control composition can be used for providing further compositions that have excellent sag resistance, especially on vertical surfaces. The sag control composition can also provide compositions having a relatively lower content of organic solvent when compared to previously known sag control compositions.
    Type: Grant
    Filed: March 3, 2011
    Date of Patent: April 10, 2012
    Inventors: Ayumu Yokoyama, Rajesh Gopalan Saliya, Hari Babu Sunkara
  • Publication number: 20120077912
    Abstract: The present disclosure is directed to a polyester having renewable 1,3-propanediol. This invention is further directed to a coating composition comprising the polyester having components derived from renewable resources.
    Type: Application
    Filed: September 28, 2010
    Publication date: March 29, 2012
    Applicant: E.I. DU PONT DE NEMOURS AND COMPANY
    Inventors: Hari Babu Sunkara, Rajesh Gopalan Saliya, Ayumu Yokoyama
  • Publication number: 20120053274
    Abstract: The present disclosure is directed to a high film build coating composition that is capable of producing coatings being sag-free at high coating thicknesses and good appearance. This disclosure is further directed to a coating composition comprising components derived from renewable resources.
    Type: Application
    Filed: March 14, 2011
    Publication date: March 1, 2012
    Applicant: E. I. DU PONT DE NEMOURS AND COMPANY
    Inventors: Ayumu Yokoyama, Hari Babu Sunkara, Rajesh Goplan Saliya
  • Publication number: 20120053275
    Abstract: The present disclosure is directed to a coating composition having low molecular weight polytrimethylene ether glycol, polymers having one or more crosslinkable functional groups and a crosslinking agent having one or more crosslinking functional groups. The coating compositions can be used as interior and exterior top coats, basecoats, primers, primer surfacers and primer fillers. The disclosure is particularly directed to a coating composition comprising components derived from renewable resources.
    Type: Application
    Filed: March 14, 2011
    Publication date: March 1, 2012
    Applicant: E. I. DU PONT DE NEMOURS AND COMPANY
    Inventors: AYUMU YOKOYAMA, Hari Babu Sunkara, Rajest Gopalan Saliya