Patents by Inventor Redina Kote

Redina Kote 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: 20100192802
    Abstract: The present invention relates to a method for preparing (pearlescent) pigments, comprising the steps of: (1) coating of a sheet silicate with a desired metal oxide, wherein coated flakes are obtained, (2) delamination of the coated flakes obtained in step (1), wherein exfoliated coated flakes and exfoliated non-coated flakes are obtained, (3) separation of the exfoliated coated flakes from the exfoliated non-coated flakes, (4) coating the exfoliated coated flakes obtained in step (3) with metals, metal oxides, metal sulfides, metal nitrides or mixtures thereof, wherein a (pearlescent) pigment is obtained; to (pearlescent) pigments, obtainable by the process and to the use of the (pearlescent) pigments in paints, ink-jet printing, for dyeing textiles, for pigmenting coatings, printing inks, plastics, cosmetics, glazes for ceramics and glass.
    Type: Application
    Filed: April 23, 2008
    Publication date: August 5, 2010
    Applicant: CIBA CORPORATION
    Inventors: Patrice Bujard, Redina Kote, Philippe Bugnon
  • Patent number: 7662308
    Abstract: Novel fluorescent polyhedral oligomeric silsesquioxane (POSS) colorants are provided. The colorants are strongly fluorescing and long lasting with excellent light stability. The novel colorants can be prepared from chromophores found in common pigments and provide a simple way to convert an insoluble pigment into a soluble fluorescent colorant.
    Type: Grant
    Filed: July 16, 2007
    Date of Patent: February 16, 2010
    Assignee: Ciba Specialty Chemicals Corporation
    Inventors: Suruliappa G. Jeganathan, David Bramer, Redina Kote, Gajanan J. Maladkar
  • Patent number: 7531664
    Abstract: Novel flame retarding compounds that comprise at least one sterically hindered nitroxyl, hydroxylamine or hydrocarbyloxyamine moiety and at least one conventional organohalogen or organophosphorus flame retardant moiety, represented by where HA is independently of each other a sterically hindered nitroxyl, sterically hindered hydroxylamine or sterically hindered hydrocarbyloxyamine moiety, L is independently of each other a direct bond or chemical linking group, FRM is independently of each other an organohalogen or an organophosphorus flame retardant moiety, and x, y and z are each independently greater than or equal to 1, are especially effective towards providing flame retardancy to organic polymer substrates.
    Type: Grant
    Filed: April 12, 2005
    Date of Patent: May 12, 2009
    Assignee: Ciba Specialty Chemicals Corporation
    Inventors: Malisa V. Troutman, Ramanathan Ravichandran, Redina Kote, Roswell E. King
  • Publication number: 20080029739
    Abstract: Novel fluorescent polyhedral oligomeric silsesquioxane (POSS) colorants are provided. The colorants are strongly fluorescing and long lasting with excellent light stability. The novel colorants can be prepared from chromophores found in common pigments and provide a simple way to convert an insoluble pigment into a soluble fluorescent colorant.
    Type: Application
    Filed: July 16, 2007
    Publication date: February 7, 2008
    Inventors: Suruliappa G. Jeganathan, David Bramer, Redina Kote, Gajanan J. Maladkar
  • Publication number: 20060135659
    Abstract: Novel flame retarding compounds that comprise at least one sterically hindered nitroxyl, hydroxylamine or hydrocarbyloxyamine moiety and at least one conventional organohalogen or organophosphorus flame retardant moiety, represented by where HA is independently of each other a sterically hindered nitroxyl, sterically hindered hydroxylamine or sterically hindered hydrocarbyloxyamine moiety, L is independently of each other a direct bond or chemical linking group, FRM is independently of each other an organohalogen or an organophosphorus flame reatardant moiety, and x, y and z are each independently greater than or equal to 1, are especially effective towards providing flame retardancy to organic polymer substrates.
    Type: Application
    Filed: April 12, 2005
    Publication date: June 22, 2006
    Inventors: Malisa Troutman, Ramanathan Ravichandran, Redina Kote, Roswell King
  • Patent number: 6967252
    Abstract: Novel flame retarding compounds that comprise at least one sterically hindered nitroxyl, hydroxylamine or hydrocarbyloxyamine moiety and at least one conventional organohalogen or organophosphorus flame retardant moiety, represented by where HA is independently of each other a sterically hindered nitroxyl, sterically hindered hydroxylamine or sterically hindered hydrocarbyloxyamine moiety, L is independently of each other a direct bond or chemical linking group, FRM is independently of each other an organohalogen or an organophosphorus flame reatardant moiety, and x, y and z are each independently greater than or equal to 1, are especially effective towards providing flame retardancy to organic polymer substrates.
    Type: Grant
    Filed: December 16, 2002
    Date of Patent: November 22, 2005
    Assignee: Ciba Specialty Chemicals Corporation
    Inventors: Malisa V. Troutman, Ramanathan Ravichandran, Redina Kote, Roswell E. King
  • Publication number: 20030191213
    Abstract: Novel flame retarding compounds that comprise at least one sterically hindered nitroxyl, hydroxylamine or hydrocarbyloxyamine moiety and at least one conventional organohalogen or organophosphorus flame retardant moiety, represented by 1
    Type: Application
    Filed: December 16, 2002
    Publication date: October 9, 2003
    Inventors: Malisa V. Troutman, Ramanathan Ravichandran, Redina Kote