Patents by Inventor Samit N. Chevli

Samit N. Chevli 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).

  • AQUEOUS INK-JET INK COMPRISING AN ANTIFOAMING AGENT
    Publication number: 20170114238
    Abstract: The present disclosure provides an ink for inkjet printing. The ink contains an aqueous vehicle, a colorant and an effective amount of an antifoaming agent. The antifoaming agent is an acetylenic glycol which is not a surfactant.
    Type: Application
    Filed: May 29, 2015
    Publication date: April 27, 2017
    Inventor: Samit N. Chevli
  • Inkjet inks and ink sets
    Patent number: 9371459
    Abstract: The present disclosure pertains to an aqueous inkjet ink containing a pigment as colorant, a polymeric binder, an anionic surfactant and a 1-alkyl-2-pyrrolidone co-solvent. The present disclosure further pertains to an ink set containing this aqueous inkjet ink, as well as to methods of printing with this ink and ink set on a variety of substrates, and particularly hydrophobic substrates and nonporous media.
    Type: Grant
    Filed: July 19, 2012
    Date of Patent: June 21, 2016
    Assignee: E I DU PONT DE NEMOURS AND COMPANY
    Inventor: Samit N Chevli
  • Aqueous pigment dispersions and inkjet inks
    Patent number: 9085707
    Abstract: The present disclosure pertains to an aqueous pigment dispersion containing a pigment as colorant, a polymeric dispersant and a hydroxyl-substituted amino acid. The present disclosure further pertains to an ink containing an aqueous vehicle and the aqueous pigment dispersion, and ink sets with at least one of the inks containing the pigment dispersion.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: July 21, 2015
    Assignee: E I DU PONT DE NEMOURS AND COMPANY
    Inventors: Samit N Chevli, Xiaoqing Li
  • INKJET INKS AND INK SETS
    Publication number: 20140160212
    Abstract: The present disclosure pertains to an aqueous inkjet ink containing a pigment as colorant, a polymeric binder, an anionic surfactant and a 1-alkyl-2-pyrrolidone co-solvent. The present disclosure further pertains to an ink set containing this aqueous inkjet ink, as well as to methods of printing with this ink and ink set on a variety of substrates, and particularly hydrophobic substrates and nonporous media.
    Type: Application
    Filed: July 19, 2012
    Publication date: June 12, 2014
    Applicant: E I DU PONT DE NEMOURS AND COMPANY
    Inventor: Samit N. Chevli
  • AQUEOUS PIGMENT DISPERSIONS AND INKJET INKS
    Publication number: 20140061544
    Abstract: The present disclosure pertains to an aqueous pigment dispersion containing a pigment as colorant, a polymeric dispersant and a hydroxyl-substituted amino acid. The present disclosure further pertains to an ink containing an aqueous vehicle and the aqueous pigment dispersion, and ink sets with at least one of the inks containing the pigment dispersion.
    Type: Application
    Filed: March 15, 2013
    Publication date: March 6, 2014
    Applicant: E I DU PONT DE NEMOURS AND COMPANY
    Inventors: SAMIT N. CHEVLI, XIAOQING LI
  • INKJET INKS FOR TEXTILES CONTAINING CROSSLINKED POLYURETHANES AND FURTHER CONTAINING ADDITIONAL REACTIVE COMPONENTS
    Publication number: 20110124799
    Abstract: Inkjet inks that have, as principal components, a post printing curing agent and a crosslinked polyurethane dispersoid binder additive with selected diols used to prepare the polyurethane. The diols include a polyether diol, an ionic diol and polycarbonate, polyamide and poly(meth)acrylate diols. These inks can be used for printing on different media, and are particularly suitable for printing on textiles. The printed textiles are particularly durable too key wash fastness and crock testing.
    Type: Application
    Filed: May 8, 2009
    Publication date: May 26, 2011
    Applicant: E.I. DU PONT DE NEMOURS AND COMPANY
    Inventors: Xiaoqing Li, Scott W. Ellis, Samit N. Chevli
  • INKJET INKS FOR TEXTILES CONTAINING CROSSLINKED POLYURETHANES AND FURTHER CONTAINING ADDITIONAL REACTIVE COMPONENTS
    Publication number: 20090281240
    Abstract: Inkjet inks that have, as principal components, a post printing curing agent and a crosslinked polyurethane dispersoid binder additive with selected diols used to prepare the polyurethane. The diols include a polyether diol, an ionic diol and polycarbonate, polyamide and poly(meth)acrylate diols. These inks can be used for printing on different media, and are particularly suitable for printing on textiles. The printed textiles are particularly durable to key wash fastness and crock testing.
    Type: Application
    Filed: May 8, 2009
    Publication date: November 12, 2009
    Applicant: E.I.DU PONT DE NEMOURS AND COOMPANY
    Inventors: XIAOQING LI, Scott W. Ellis, Samit N. Chevli
  • Inkjet ink set
    Patent number: 7442243
    Abstract: The present invention pertains to an aqueous inkjet ink set based on disperse dye colorants and, more particularly, to such an inkjet ink set particularly suitable for printing on polyester and polyester blend textiles, such as automotive textile stock, so that the printed fabric is colorfast when exposed to light.
    Type: Grant
    Filed: July 21, 2006
    Date of Patent: October 28, 2008
    Assignee: E.I. du Pont de Nemours and Company
    Inventor: Samit N. Chevli
  • Inkjet ink set
    Patent number: 7282089
    Abstract: The present invention pertains to a dye-based inkjet ink set and, more particularly, to a dye-based inkjet ink set suitable for printing on polyamide fabric.
    Type: Grant
    Filed: November 4, 2005
    Date of Patent: October 16, 2007
    Assignee: E.I. du Pont de Nemours and Company
    Inventors: James Walter Wheeler, John Stephen Locke, Samit N. Chevli, Sandra Laurine Issler, Alicia Marie Walsh
  • Inkjet ink set
    Patent number: 7223300
    Abstract: The present invention pertains to a dye-based inkjet ink set that includes a red disperse dye and, more particularly, to a dye-based inkjet ink set suitable for printing on polyester and polyester blends fabrics. The present invention also pertains to a method for printing polyester and polyester blends fabrics with the dye-based inkjet ink set, and a polyester and polyester blends fabrics so printed.
    Type: Grant
    Filed: October 19, 2005
    Date of Patent: May 29, 2007
    Assignee: E. I. du Pont de Nemours and Company
    Inventor: Samit N. Chevli
  • Inkjet ink set
    Patent number: 7211129
    Abstract: The present invention pertains to a dye-based inkjet ink set and, more particularly, to a dye-based inkjet ink set suitable for printing on polyamide fabric. The present invention also pertains to a method for printing a polyamide fabric with the dye-based inkjet ink set, and a polyamide fabric so printed.
    Type: Grant
    Filed: July 1, 2005
    Date of Patent: May 1, 2007
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: James Walter Wheeler, John Stephen Locke, Samit N. Chevli, Sandra Laurine Issler, Alicia Marie Walsh
  • Disperse dye black ink
    Patent number: 7211130
    Abstract: This invention pertains to an aqueous disperse dye black ink and inkjet ink set containing this disperse dye black ink. The ink and ink sets are especially suitable for printing of textiles, especially polyester and polyester blends.
    Type: Grant
    Filed: November 16, 2005
    Date of Patent: May 1, 2007
    Assignee: E. I. du Pont de Nemours and Company
    Inventor: Samit N. Chevli
  • Vat acid dyeing of textile fibers
    Patent number: 6942706
    Abstract: A process for dyeing certain textile fibers, utilizing vat acid dyeing and specific additional (second) reducing agents such as ?-hydroxyalkylsulfinic acids, their salts and 1,2,4-trithiolane, resulting in excellent depth of shade and washfastness, is provided.
    Type: Grant
    Filed: March 23, 2004
    Date of Patent: September 13, 2005
    Assignee: Invista North America S.a.r.l.
    Inventors: Stephen M. Birkinshaw, Samit N. Chevli, Michael O. Hunt, Jr., Lee D. Jones, David M. Lewis, David J. Marfell
  • Vat acid dyeing of textile fibers
    Publication number: 20040172774
    Abstract: A process for dyeing certain textile fibers, utilizing vat acid dyeing and specific additional (second) reducing agents such as &agr;-hydroxyalkylsulfinic acids, their salts and 1,2,4-trithiolane, resulting in excellent depth of shade and washfastness, is provided.
    Type: Application
    Filed: March 23, 2004
    Publication date: September 9, 2004
    Inventors: Stephen M. Birkinshaw, Samit N. Chevli, Michael O. Hunt, Lee D. Jones, David M. Lewis, David J. Marfell
  • Vat acid dyeing of textile fibers
    Patent number: 6780205
    Abstract: A process for dyeing certain textile fibers, utilizing vat acid dyeing and specific additional (second) reducing agents such as &agr;-hydroxyalkylsulfinic acids, their salts and 1,2,4-trithiolane, resulting in excellent depth of shade and washfastness, is provided.
    Type: Grant
    Filed: August 20, 2002
    Date of Patent: August 24, 2004
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Stephen M. Birkinshaw, Samit N. Chevli, Michael O. Hunt, Jr., Lee D. Jones, David M. Lewis, David J. Marfell
  • Vat acid dyeing of textile fibers
    Publication number: 20030110580
    Abstract: A process for dyeing certain textile fibers, utilizing vat acid dyeing and specific additional (second) reducing agents such as &agr;-hydroxyalkylsulfinic acids, their salts and 1,2,4-trithiolane, resulting in excellent depth of shade and washfastness, is provided.
    Type: Application
    Filed: August 20, 2002
    Publication date: June 19, 2003
    Inventors: Stephen M. Burkinshaw, Samit N. Chevli, Michael O. Hunt, Lee D. Jones, David M. Lewis, David J. Marfell