Patents by Inventor Ilona Lin

Ilona Lin 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: 8309063
    Abstract: A stable, oil-in-water (O-W) emulsion-based sunscreen composition having at least one water-insoluble, organic UV-absorber having a water-solubility of much less than 0.1% by weight, contained in the oil phase of the sunscreen emulsion, comprising i) zinc oxide (ZnO) particles having a surface free of any prior coating of any inorganic oxide and hydrophobic material, remaining dispersed in the water phase of the sunscreen emulsion; ii) at least one non- or low-foaming, non-cationic, hydrophilic polymer, capable of dispersing or deflocculating the ZnO particles but incapable of thickening an aqueous composition to a viscosity of greater than 100 cps at 25° C.
    Type: Grant
    Filed: June 10, 2005
    Date of Patent: November 13, 2012
    Assignee: Amcol International Corporation
    Inventors: Ashoke K. SenGupta, Ilona Lin
  • Patent number: 7915214
    Abstract: A cleansing or a surface-conditioning composition comprising a mixture of (i) and (ii) in water: i) a surfactant selected from the group consisting of anionic, non-ionic, zwitterionic, cationic, and mixtures thereof, and ii) a hydrophobic benefit agent in a particulate form having a mean particle size in the range of 1-1,000 micron, and a specific gravity of ?1, not encapsulated within a film or a capsule-like enclosure, the particulate hydrophobic benefit agent comprising: a) a physically-modified form of the hydrophobic benefit agent; and b) a deposition-aid material bonded to the surface of the physically-modified benefit agent material, wherein the bonding between the two said materials is achieved prior to addition to i), wherein said deposition-aid material is not a surfactant having a weight average molecular weight of less than 5,000 Dalton.
    Type: Grant
    Filed: February 8, 2008
    Date of Patent: March 29, 2011
    Assignee: Amcol International Corporation
    Inventors: Ashoke K. SenGupta, Ilona Lin, Jason St. Onge
  • Patent number: 7888306
    Abstract: A cleansing or a surface-conditioning composition comprising a mixture of (i) and (ii) in water: i) a surfactant selected from the group consisting of anionic, non-ionic, zwitterionic, cationic, and mixtures thereof; and ii) a hydrophobic benefit agent in a particulate form having a mean particle size in the range of 1-1,000 micron, and a specific gravity of ?1, not encapsulated within a film or a capsule-like enclosure, the particulate hydrophobic benefit agent comprising: a) a physically-modified form of the hydrophobic benefit agent; and b) a deposition-aid material bonded to the surface of the physically-modified benefit agent material, wherein the bonding between the two said materials is achieved prior to addition to i), wherein said deposition-aid material is not a surfactant having a weight average molecular weight of less than 5,000 Dalton.
    Type: Grant
    Filed: May 14, 2008
    Date of Patent: February 15, 2011
    Assignee: Amcol International Corporation
    Inventors: Ashoke K. SenGupta, Ilona Lin, Jason St. Onge, Melanie J. Hughes
  • Patent number: 7855173
    Abstract: A cationic oil-in-water emulsion, for addition to detersive compositions, comprising hydrophilic cationic polymers, a surface-active, anionic polymer that is capable of adsorbing at an air-water interface or an oil-water interface and/or is oil-soluble, and a hydrophobic benefit agent in the oil phase made by adding the benefit agent to a hydrophobic liquid; thickening the oil phase with an organophillic smectite clay reacted at clay platelet surfaces to make the clay platelet surfaces hydrophobic while the edge surfaces of the clay remain hydrophilic, such that the organophillic smectite clay is adsorbed at an oil/water interface in the emulsion, and one of the hydrophilic, cationic polymers has a cationic nitrogen content of at least 6% by weight, that is incompatible with anionic surfactants, being insoluble in anionic-surfactant solutions containing an amount of 3% or higher of an anionic surfactant, and another hydrophilic cationic polymer has a cationic nitrogen content of at least 0.
    Type: Grant
    Filed: June 26, 2009
    Date of Patent: December 21, 2010
    Assignee: Amcol International Corporation
    Inventors: Ashoke K. SenGupta, Ilona Lin, Jason Harold St. Onge
  • Publication number: 20090263337
    Abstract: A cationic oil-in-water emulsion, for addition to detersive compositions, comprising hydrophilic cationic polymers, a surface-active, anionic polymer that is capable of adsorbing at an air-water interface or an oil-water interface and/or is oil-soluble, and a hydrophobic benefit agent in the oil phase made by adding the benefit agent to a hydrophobic liquid; thickening the oil phase with an organophillic smectite clay reacted at clay platelet surfaces to make the clay platelet surfaces hydrophobic while the edge surfaces of the clay remain hydrophilic, such that the organophillic smectite clay is adsorbed at an oil/water interface in the emulsion, and one of the hydrophilic, cationic polymers has a cationic nitrogen content of at least 6% by weight, that is incompatible with anionic surfactants, being insoluble in anionic-surfactant solutions containing an amount of 3% or higher of an anionic surfactant, and another hydrophilic cationic polymer has a cationic nitrogen content of at least 0.
    Type: Application
    Filed: June 26, 2009
    Publication date: October 22, 2009
    Applicant: AMCOL INTERNATIONAL CORPORATION
    Inventors: Ashoke K. SenGupta, Ilona Lin, Jason St. Onge
  • Patent number: 7569533
    Abstract: A cationic oil-in-water emulsion, for addition to detersive compositions, comprising hydrophilic cationic polymers, a surface-active, anionic polymer that is capable of adsorbing at an air-water interface or an oil-water interface and/or is oil-soluble, and a hydrophobic benefit agent in the oil phase made by adding the benefit agent to a hydrophobic liquid; thickening the oil phase with an organophillic smectite clay reacted at clay platelet surfaces to make the clay platelet surfaces hydrophobic while the edge surfaces of the clay remain hydrophilic, such that the organophillic smectite clay is adsorbed at an oil/water interface in the emulsion, and one of the hydrophilic, cationic polymers has a cationic nitrogen content of at least 6% by weight, that is incompatible with anionic surfactants, being insoluble in anionic-surfactant solutions containing an amount of 3% or higher of an anionic surfactant, and another hydrophilic cationic polymer has a cationic nitrogen content of at least 0.
    Type: Grant
    Filed: January 12, 2006
    Date of Patent: August 4, 2009
    Assignee: Amcol International Corporation
    Inventors: Ashoke K. SenGupta, Ilona Lin, Jason St. Onge
  • Publication number: 20080286367
    Abstract: A cleansing or a surface-conditioning composition comprising a mixture of (i) and (ii) in water: i) a surfactant selected from the group consisting of anionic, non-ionic, zwitterionic, cationic, and mixtures thereof; and ii) a hydrophobic benefit agent in a particulate form having a mean particle size in the range of 1-1,000 micron, and a specific gravity of ?1, not encapsulated within a film or a capsule-like enclosure, the particulate hydrophobic benefit agent comprising: a) a physically-modified form of the hydrophobic benefit agent; and b) a deposition-aid material bonded to the surface of the physically-modified benefit agent material, wherein the bonding between the two said materials is achieved prior to addition to i), wherein said deposition-aid material is not a surfactant having a weight average molecular weight of less than 5,000 Dalton.
    Type: Application
    Filed: May 14, 2008
    Publication date: November 20, 2008
    Applicant: AMCOL International Corporation
    Inventors: Ashoke K. SenGupta, Ilona Lin, Jason St. Onge, Melanie J. Hughes
  • Publication number: 20080242582
    Abstract: A cleansing or a surface-conditioning composition comprising a mixture of (i) and (ii) in water: i) a surfactant selected from the group consisting of anionic, non-ionic, zwitterionic, cationic, and mixtures thereof, and ii) a hydrophobic benefit agent in a particulate form having a mean particle size in the range of 1-1,000 micron, and a specific gravity of ?1, not encapsulated within a film or a capsule-like enclosure, the particulate hydrophobic benefit agent comprising: a) a physically-modified form of the hydrophobic benefit agent; and b) a deposition-aid material bonded to the surface of the physically-modified benefit agent material, wherein the bonding between the two said materials is achieved prior to addition to i), wherein said deposition-aid material is not a surfactant having a weight average molecular weight of less than 5,000 Dalton.
    Type: Application
    Filed: February 8, 2008
    Publication date: October 2, 2008
    Applicant: AMCOL International Corporation
    Inventors: Ashoke K. SenGupta, Ilona Lin, Jason St. Onge
  • Publication number: 20070178057
    Abstract: A sunscreen composition, either impregnating a wipe substrate or comprising a sunscreen spray, wherein the composition comprises an oil phase dispersed stably as emulsion droplets in a water phase that contains i) a booster for the sun protection factor (SPF), comprising a combination of water-dispersible particulate materials, one of which is smectite clay, and a water-soluble or water-dispersible phenolic polymer; and ii) a water-soluble or water-dispersible polymer having a weak acid group, a weight average molecular weight of 1,000-100,000 Dalton, and an anionic charge density of no less than 4 milliequivalent per gram of the polymer; the said sunscreen composition meeting the following specifications: i) the in-vivo sun protection factor (SPF) is ?1.
    Type: Application
    Filed: February 1, 2006
    Publication date: August 2, 2007
    Applicant: AMCOL International Corporation
    Inventors: Ashoke SenGupta, Kevin Cureton, Ilona Lin, Thomas Beihoffer
  • Publication number: 20070151931
    Abstract: Concentrated suspensions of smectite clays are obtained as either relatively “thin” or highly shear-thinning slurries that are easy to pump, by adding one or more of certain cationic polymers whose weight average molecular weight, Mw, is 50,000 or higher. It was found during the course of the invention that a cationic polymer with an Mw of 10,000 did not work, while the same polymer with a bimodal Mw of 50,000 and 30,000 worked satisfactorily. To achieve the full advantage of the present invention, the cationic polymer preferably has 1 to 10 milliequivalents of cationic charge per gram of the polymer, and more preferably 5 to 10 milliequivalents of cationic charge per gram of the polymer, and most preferably 6 to 8 milliequivalents of cationic charge per gram of the polymer.
    Type: Application
    Filed: February 26, 2007
    Publication date: July 5, 2007
    Applicant: AMCOL International Corporation
    Inventors: Ashoke SenGupta, Jerald Darlington, Jennifer Gould, Ilona Lin
  • Publication number: 20060280702
    Abstract: A stable, oil-in-water (O-W) emulsion-based sunscreen composition having at least one water-insoluble, organic UV-absorber having a water-solubility of much less than 0.1% by weight, contained in the oil phase of the sunscreen emulsion, comprising i) zinc oxide (ZnO) particles having a surface free of any prior coating of any inorganic oxide and hydrophobic material, remaining dispersed in the water phase of the sunscreen emulsion; ii) at least one non- or low-foaming, non-cationic, hydrophilic polymer, capable of dispersing or deflocculating the ZnO particles but incapable of thickening an aqueous composition to a viscosity of greater than 100 cps at 25° C.
    Type: Application
    Filed: June 10, 2005
    Publication date: December 14, 2006
    Applicant: AMCOL International Corporation
    Inventors: Ashoke SenGupta, Ilona Lin
  • Publication number: 20060154836
    Abstract: A cationic oil-in-water emulsion for addition to detersive compositions comprising a hydrophilic cationic polymer, an oil-soluble anionic polymer, and a hydrophobic benefit agent in the oil phase made by adding the benefit agent to a hydrophobic liquid; thickening the oil phase with an organophillic smectite clay reacted at clay platelet surfaces to make the clay platelet surfaces hydrophobic while the edge surfaces of the clay remain hydrophilic, such that the benefit agent is adsorbed at an oil/water interface in the emulsion, wherein the anionic polymer is capable of adsorbing the hydrophobic benefit agent at an oil/water interface of the emulsion, and the a hydrophilic, cationic polymer has a cationic nitrogen content of at least 6% by weight, that is incompatible with anionic surfactants, being insoluble in anionic-surfactant solutions containing an amount of 3% or higher of an anionic surfactant, and the hydrophilic cationic polymer has a cationic nitrogen content of at least 0.
    Type: Application
    Filed: January 12, 2006
    Publication date: July 13, 2006
    Applicant: AMCOL International Corporation
    Inventors: Ashoke SenGupta, Ilona Lin, Jason Onge