Patents by Inventor Kishor Kumar Mistry

Kishor Kumar Mistry 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: 11717471
    Abstract: The present application provides hydrogel microcapsules, particularly, canonized hydrogel microcapsules having improved substantivity. This application further relates to the use of hydrogel microcapsules for delivering encapsulated actives in a wide range of industries and applications including: agrochemicals, pharmaceuticals, cosmetics industry, personal care products, laundering detergents, homecare & cleaning products, dish washing detergents, oral care, dental care, textiles, paper, mining, oil industry, water treatment, adhesives, coatings, plastics, sealants, construction, paints, inks and dyes onto different substrate surfaces such as skin, hair, textiles.
    Type: Grant
    Filed: December 1, 2011
    Date of Patent: August 8, 2023
    Assignee: ISP Investments LLC
    Inventors: Kishor Kumar Mistry, Abdul Wahab Hussain, Petra Helga Beck, David Vaughan Palmer, Benjamin Roger Sales, Andrew Mint
  • Patent number: 11396000
    Abstract: The present application describes a microcapsule comprising: (i) a lipophilic core material, and (ii) a microcapsule shell, wherein microcapsule shell formed from oil-in-water emulsion polymerisation of monomer mixture consisting essentially of: (a) greater than 70 to about 99% by weight of at least one polyfunctional ethylenically unsaturated monomer, (b) about 1 to about 30% by weight of at least one unsaturated carboxylic acid monomer or its ester, and (c) about 0 to about 30% by weight of at least one vinyl monomer. Also provides process for preparing the same and its method of use in various applications.
    Type: Grant
    Filed: January 13, 2017
    Date of Patent: July 26, 2022
    Assignee: ISP INVESTMENTS LLC
    Inventors: Kishor Kumar Mistry, Assim Fiaz, Abdul Wahab Hussain, Terry Crutcher
  • Patent number: 8993112
    Abstract: Polymeric particles comprising a polymeric matrix that has been formed from a blend of monomers comprising a first monomer which is an ethylenically unsaturated ionic monomer and a second monomer which is an ethylenically unsaturated hydrophobic monomer which is capable of forming a homopolymer of glass transition temperature in excess of 50° C., wherein secondary particles are distributed throughout the matrix, in which the secondary particles comprise a hydrophobic polymer that has been formed from an ethylenically unsaturated hydrophobic monomer which is capable of forming a homopolymer of glass transition temperature in excess of 50° C. and optionally other monomers, which hydrophobic polymer is different from the polymeric matrix. Also claimed is a process for preparing particles. The particles have improved shatter resistance. Preferably the polymeric particles comprise an active ingredient, especially a colorant.
    Type: Grant
    Filed: June 2, 2005
    Date of Patent: March 31, 2015
    Assignee: BASF SE
    Inventors: Stewart Todd Elder, Christina Ligia Andrianov, Kishor Kumar Mistry, Janine Andrea Preston, Mark Christopher Baxter
  • Patent number: 8747999
    Abstract: The present invention related to (micro-or nano-) capsules that have two different functional groups on the outer shell of the particles that allow deposition onto the textile surfaces (i.e. exhibit substantivity) and subsequent covalent bonding of the particles onto the textile (i.e. are reactive towards the fiber).
    Type: Grant
    Filed: November 20, 2006
    Date of Patent: June 10, 2014
    Assignee: BASF SE
    Inventors: Bryan David Grey, Kishor Kumar Mistry, Chun-tian Zhao
  • Publication number: 20130302392
    Abstract: The present application provides hydrogel microcapsules, particularly, canonized hydrogel microcapsules having improved substantivity. This application further relates to the use of hydrogel microcapsules for delivering encapsulated actives in a wide range of industries and applications including: agrochemicals, pharmaceuticals, cosmetics industry, personal care products, laundering detergents, homecare & cleaning products, dish washing detergents, oral care, dental care, textiles, paper, mining, oil industry, water treatment, adhesives, coatings, plastics, sealants, construction, paints, inks and dyes onto different substrate surfaces such as skin, hair, textiles.
    Type: Application
    Filed: December 1, 2011
    Publication date: November 14, 2013
    Inventors: Kishor Kumar Mistry, Abdul Wahab Hussain, Petra Helga Beck, David Vaughan Palmer, Benjamin Roger Sales, Andrew Mint
  • Patent number: 8270063
    Abstract: The invention relates to an electrophoretic display, comprising electrodes and cells containing at least one kind of ionic, monochrome particles, a non-polar liquid and a dispersant, wherein the ionic, monochrome particles of at least one kind are essentially aggregates consisting of a carbon containing pigment and a cationic pigment orcationic pigment derivative, and the dispersantis selected from the group consisting of polyacrylates, polyesters, polyurethanes and copolymers, with the proviso that the cationic pigment or cationic pigment derivative is not a reaction product of carbonblack with diazotated procaine hydrochloride. In general, the whole quantity of the pigment and the main part, preferably at least 80%, most preferred from 95% to 100%, of the whole cationic pigment or cationic pigment derivative present within the cells is comprised in the aggregates, with essentially no pigment and only a minor part of the cationic pigment or cationic pigment derivative physically distinct from the aggregates.
    Type: Grant
    Filed: August 28, 2008
    Date of Patent: September 18, 2012
    Assignee: BASF SE
    Inventors: Margherita Fontana, Gerardus De Keyzer, Philippe Bugnon, Marcel Hahn, Kishor Kumar Mistry, Clemens Auschra
  • Publication number: 20120149265
    Abstract: A particulate composition comprising, A) an organic phase change material, B) a water insoluble polymeric matrix comprising, B1) polymeric material containing repeating monomer units formed from i) at least one hydrophobic ethylenically unsaturated monomer(s), and ii) at least one hydrophilic ethylenically unsaturated monomer(s) which provides the polymeric material with pendent functional groups, and, B2) a cross-linking component derived from a cross-linking compound which has reacted with said pendent functional groups of the polymeric material, in which the organic phase change material (A) is distributed as a separate phase throughout the water insoluble polymeric matrix (B).
    Type: Application
    Filed: June 15, 2010
    Publication date: June 14, 2012
    Applicant: BASF SE
    Inventors: Kishor Kumar Mistry, Ian Stuart Biggin, Mark Christopher Baxter, Martin Peter Butters
  • Patent number: 8040592
    Abstract: The invention relates to an electrophoretic display, comprising electrodes and cells containing at least one kind of ionic, monochrome particles, a non-polar liquid and a dispersant, wherein the ionic, monochrome particles of at least one kind are essentially aggregates consisting of a carbon containing pigment and an anionic pigment or anionic pigment derivative, and the dispersant is selected from the group consisting of polyacrylates, polyesters, polyurethanes and copolymers. In general, the whole quantity of the pigment and the main part, preferably at least 80%, most preferred from 95% to 100%, of the whole anionic pigment or anionic pigment derivative present within the cells is comprised in the aggregates, with essentially no pigment and only a minor part of the anionic pigment or anionic pigment derivative physically distinct from the aggregates.
    Type: Grant
    Filed: June 27, 2007
    Date of Patent: October 18, 2011
    Assignee: BASF SE
    Inventors: Margherita Fontana, Gerardus De Keyzer, Philippe Bugnon, Marcel Hahn, Kishor Kumar Mistry, Clemens Auschra
  • Publication number: 20110147965
    Abstract: The invention relates to a process of preparing polymer particles which comprise an effective amount of at least one colourant, a polymer matrix and secondary particles distributed within the polymer matrix. The process comprises the following steps: A) Preparation of an emulsion of a polymer formed from a monomer blend in an aqueous phase and Formation of the secondary particles in the aqueous phase; B) Addition to the aqueous phase of an effective colouring amount of at least one colourant; C) Dispersing or dissolving the colourant in the aqueous phase; and D) Subjecting the emulsion to dehydration in a spray-drying unit.
    Type: Application
    Filed: April 29, 2009
    Publication date: June 23, 2011
    Applicant: BASF SE
    Inventors: Kishor Kumar Mistry, Mark Christopher Baxter
  • Patent number: 7947294
    Abstract: The present invention relates to personal care or cosmetic compositions that contain a shatter-resistant blend of microencapsulated colorants that can produce a natural, textured tone effect. A method for cosmetic treatment comprises application of such personal care or cosmetic compositions onto at least a part of the body.
    Type: Grant
    Filed: June 8, 2005
    Date of Patent: May 24, 2011
    Assignee: BASF SE
    Inventors: Todd Elder, Christina Ligia Andrianov, Kishor Kumar Mistry, Janine Andrea Preston, Mark Christopher Baxter
  • Publication number: 20100290103
    Abstract: The invention relates to an electrophoretic display, comprising electrodes and cells containing at least one kind of ionic, monochrome particles, a non-polar liquid and a dispersant, wherein the ionic, monochrome particles of at least one kind are essentially aggregates consisting of a carbon containing pigment and a cationic pigment orcationic pigment derivative, and the dispersantis selected from the group consisting of polyacrylates, polyesters, polyurethanes and copolymers, with the proviso that the cationic pigment or cationic pigment derivative is not a reaction product of carbonblack with diazotated procaine hydrochloride. In general, the whole quantity of the pigment and the main part, preferably at least 80%, most preferred from 95% to 100%, of the whole cationic pigment or cationic pigment derivative present within the cells is comprised in the aggregates, with essentially no pigment and only a minor part of the cationic pigment or cationic pigment derivative physically distinct from the aggregates.
    Type: Application
    Filed: August 28, 2008
    Publication date: November 18, 2010
    Applicant: BASF SE
    Inventors: Margherita Fontana, Gerardus De Keyzer, Philippe Bugnon, Marcel Hahn, Kishor Kumar Mistry, Clemens Auschra
  • Publication number: 20100265564
    Abstract: The invention relates to an electrophoretic display, comprising electrodes and cells containing at least one kind of ionic, monochrome particles, a non-polar liquid and a dispersant, wherein the ionic, monochrome particles of at least one kind are essentially aggregates consisting of a carbon containing pigment and an anionic pigment or anionic pigment derivative, and the dispersant is selected from the group consisting of polyacrylates, polyesters, polyurethanes and copolymers. In general, the whole quantity of the pigment and the main part, preferably at least 80%, most preferred from 95% to 100%, of the whole anionic pigment or anionic pigment derivative present within the cells is comprised in the aggregates, with essentially no pigment and only a minor part of the anionic pigment or anionic pigment derivative physically distinct from the aggregates.
    Type: Application
    Filed: June 27, 2007
    Publication date: October 21, 2010
    Inventors: Margherita Fontana, Gerardus De Keyzer, Philippe Bugnon, Mercel Hahn, Kishor Kumar Mistry, Clemens Auschra
  • Publication number: 20100239642
    Abstract: Described are coating compositions for marking substrates comprising a) a solvent, b) a salt of a phosphorus or boron containing acid and an amine or imine, c) a salt of a non-phosphorus and non-boron containing acid and an amine or imine, d) a binder, and e) optionally additional ingredients, their manufacture and use, wherein the above-mentioned salts can also be present in an encapsulated form as a kind of pseudo-pigment. Substrates coated by the above compositions can be marked by laser irradiation.
    Type: Application
    Filed: July 3, 2008
    Publication date: September 23, 2010
    Applicant: CIBA CORPORATION
    Inventors: Jonathan Campbell, Adolf Kaeser, Kathleen Hoekstra, Kishor Kumar Mistry
  • Publication number: 20100168275
    Abstract: A microcapsule comprising a hydrophobic core within a polymeric shell, in which the core comprises: (a) 10 to 65% by weight of a hydrocarbon liquid or hydrocarbon wax containing hydrocarbon molecules of between 10 and 24 carbon chain length; and (b) 35 to 90% by weight of an aliphatic acid containing at least 6 carbon atoms, based on the total weight of the core. The microcapsules are suitable for use in heat storage systems and especially in heat transfer systems were it is normally necessary for the density of the microcapsules and the carrier fluid to be essentially the same.
    Type: Application
    Filed: May 29, 2008
    Publication date: July 1, 2010
    Inventors: Chun-Tian Zhao, Kishor Kumar Mistry, Bryan David Grey
  • Patent number: 7648715
    Abstract: Polymeric particles comprising a polymeric matrix and colourant distributed throughout the matrix, wherein the polymeric matrix that has been formed from a blend of monomers comprising a first monomer which is an ethylenically unsaturated ionic monomer and a second monomer which is an ethylenically unsaturated hydrophobic monomer which is capable of forming a homopolymer of glass transition temperature in excess of 50° C., and in which the first monomer is a salt of a volatile counterion component, characterized in that the polymeric matrix is impermeable to the colourant The particles obtainable by the process of the invention can be used in a variety of industrial processes, for instance in the manufacture of inks, paper and cosmetics.
    Type: Grant
    Filed: April 19, 2002
    Date of Patent: January 19, 2010
    Assignee: Ciba Specialty Chemicals Water Treatments Ltd.
    Inventors: Kishor Kumar Mistry, Kenneth Charles Symes, Janine Andrea Preston
  • Publication number: 20090247406
    Abstract: The instant invention relates to encapsulated luminescent pigments, which are encapsulated by a polymeric shell. Further aspects of the invention are polymeric compositions containing these encapsulated luminescent pigments and their use in electronic devices and agricultural films.
    Type: Application
    Filed: October 4, 2006
    Publication date: October 1, 2009
    Inventors: David De Corte, Mara Destro, Cesare Lorenzetti, Kishor Kumar Mistry, Michael Tinkl, Marcello Vitale
  • Publication number: 20090155195
    Abstract: The present invention related to (micro-or nano-) capsules that have two different functional groups on the outer shell of the particles that allow deposition onto the textile surfaces (i.e. exhibit substantivity) and subsequent covalent bonding of the particles onto the textile (i.e. are reactive towards the fiber).
    Type: Application
    Filed: November 20, 2006
    Publication date: June 18, 2009
    Inventors: Bryan David Grey, Kishor Kumar Mistry, Chun-tian Zhao
  • Publication number: 20090104556
    Abstract: The present invention relates to micron to sub-micron sized coloured polymeric electrophotographic toner particles, a process for making those particles and their use as dry or liquid electrophotographic toners, and as component in the preparation of two-component electrophotographic developers. The particles comprise two different kinds of polymers and are made through dewatering of a water-in-oil emulsion.
    Type: Application
    Filed: November 6, 2006
    Publication date: April 23, 2009
    Inventors: William Grierson, Lee Christina Miller, Kishor Kumar Mistry, Bryan David Grey, Mark Christopher Baxter
  • Patent number: 7271142
    Abstract: A particulate composition comprising particles which consist of a shell wall surrounding a hydrophilic core, wherein the shell wall is formed from a polymeric coacervate and wherein the particles comprise a polymeric amphipathic stabiliser. Also claimed is a process of producing a particulate composition comprising particles which consist of a shell wall surrounding a hydrophilic core, comprising the steps of a) forming an aqueous liquid that contains a wall building material that is capable of forming the shell wall by coacervation, b) dispersing the aqueous liquid into a water immiscible liquid, which comprises a stabilising substance to form a dispersion that comprises aqueous droplets dispersed in a continuous phase of water immiscible liquid, c) subjecting the dispersion to coacervation conditions, such that the wall building material coacervates at the surface of the aqueous doplets, characterised in that the stabilising substance comprises a polymeric amphipathic stabiliser.
    Type: Grant
    Filed: June 14, 2002
    Date of Patent: September 18, 2007
    Assignee: Ciba Specialty Chemicals Water Treatments Ltd
    Inventors: Kishor Kumar Mistry, Bryan David Grey
  • Patent number: 6825162
    Abstract: Water soluble granules or particles of saldimine-type manganese complexes that are suitable as catalysts in reactions with peroxy compounds are described. The granules are used especially in washing agents. They are distinguished by retarded disssolution of and improved action of the manganese complexes.
    Type: Grant
    Filed: March 11, 2004
    Date of Patent: November 30, 2004
    Assignee: Ciba Specialty Chemicals Corporation
    Inventors: Menno Hazenkamp, Bryan David Grey, Kishor Kumar Mistry, Frank Bachmann, Josef Dannacher, Kenneth Charles Symes, Petr Kvita, Susanne Maier