Patents Represented by Attorney, Agent or Law Firm Walter Katz
  • Patent number: 7396886
    Abstract: A process for making high specific viscosity copolymers of maleic anhydride and an alkyl vinyl either having as specific viscosity of at least 7, preferably 10-50, are made by copolymerizing maleic anhydride and an alkly vinyl ether monomers in the presence of added acetylene.
    Type: Grant
    Filed: June 21, 2005
    Date of Patent: July 8, 2008
    Assignee: ISP Investments Inc.
    Inventors: Yoon Tae Kwak, Paul D. Taylor, William J. Swatos
  • Patent number: 7273838
    Abstract: A laundry detergent formulation includes a dirt suspending agent which is a blend of an anionic material, such as an anionic polymer, and a quaternary ammonium salt. This suspending agent prevents redeposition of dirt which is removed from clothing by a laundry detergent from redepositing onto cleaned clothes during the wash cycle, while allowing it to be removed completely during the rinse cycle.
    Type: Grant
    Filed: October 12, 2004
    Date of Patent: September 25, 2007
    Assignee: ISP Investments Inc
    Inventors: Purvita Shah, Michael J. Jurek
  • Patent number: 7217671
    Abstract: A fiber mat comprises fibers; a resinous fiber binder; and a binder modifier which is a methacrylate/C1-2 succinate/hydroxyacrylate copolymer.
    Type: Grant
    Filed: November 17, 2005
    Date of Patent: May 15, 2007
    Assignee: Building Materials Investment Corporation
    Inventors: Linlin Xing, William Bittle
  • Patent number: 7115641
    Abstract: This invention relates to a broad spectrum antimicrobial composition, effective against gram negative and gram positive bacteria and fungi, which comprises a synergistic composition comprising iodopropynyl butyl carbamate and a bicyclic hydroxymethyl oxazolidine containing less than 0.1% of free formaldehyde.
    Type: Grant
    Filed: February 2, 2004
    Date of Patent: October 3, 2006
    Assignee: ISP Investments Inc.
    Inventors: John J. Merianos, Paul Garelick, Susan Lindstrom, Xianbin Liu, Karen Winkowski
  • Patent number: 7048912
    Abstract: A polymer for use in an oral care composition which includes a monomer repeat unit containing an active material covalently bonded to a hydrolyzable side group of said monomer unit, and a spacer group positioned between the main chain of said polymer and said hydrolyzable side group, said polymer having a predetermined rapid rate of aqueous hydrolysis to release said active material therefrom.
    Type: Grant
    Filed: June 13, 2003
    Date of Patent: May 23, 2006
    Assignee: ISP Investments Inc.
    Inventor: Krystyna Plochocka
  • Patent number: 7041281
    Abstract: Natural feel polymers exhibit an advantageous blend of flexibility and a strong affinity to natural fibers imparting a natural feel when applied to keratin-based fibers, e.g. hair, skin, or textiles, e.g. cotton, wool, and are water-soluble and water-resistant. The polymers include repeat units of a monomer (e.g. ?-olefin) maleic anhydride alkyl half-ester or full acid, maleamic acid and maleimide, which are derivatized with a polyether amine.
    Type: Grant
    Filed: August 30, 2002
    Date of Patent: May 9, 2006
    Assignee: ISP Investments Inc.
    Inventors: Herbert Ulmer, Timothy Gillece, John Katirgis
  • Patent number: 7018625
    Abstract: Personal care compositions, particularly hair care products, include a polymer mixture made from (A) a derivatized polymer of maleic anhydride having defined repeat units of a monomer (e.g. ?-olefin) maleic anhydride alkyl half-ester or full acid, maleamic acid and maleimide, and (B) a compound or polymer having a carboxylic acid functionality. These compositions exhibit excellent high humidity curl retention properties, as well as an advantageous blend of toughness and cohesiveness, and a strong affinity to natural fibers such as keratin-based fibers, e.g. hair, skin, or textiles, such as cotton or wool; and they are also water-soluble and water-resistant.
    Type: Grant
    Filed: November 26, 2003
    Date of Patent: March 28, 2006
    Assignee: ISP Investments Inc.
    Inventors: Herbert Ulmer, Timothy Gillece, John Katirgis
  • Patent number: 6939927
    Abstract: Vinyl pyrrolidone/vinyl acetate copolymers having a very low residual vinyl pyrrolidone monomer level, i.e. <100 ppm, preferably only 50 ppm, are made within an advantageously short production cycle, by post-treating an aqueous solution of the copolymer at an elevated temperature of about 120–150° C., preferably about 130° C., under pressure, in the presence of a high temperature initiator, for a period of about 1–4 hours, preferably 2 hours.
    Type: Grant
    Filed: September 21, 2004
    Date of Patent: September 6, 2005
    Assignee: ISP Investments Inc.
    Inventors: Drupesh Patel, Paul Taylor, John Mc Kittrick
  • Patent number: 6939934
    Abstract: Terpolymer compositions of vinyl caprolactam (VCL), dimethylaminopropyl methacrylamide (DMAPMA) and hydroxyethyl methacrylate (HEMA) are described to coat substrates for use in computer printers, and provide advantageous print quality thereon.
    Type: Grant
    Filed: August 26, 2004
    Date of Patent: September 6, 2005
    Assignee: ISP Investments Inc.
    Inventors: Stephen L. Kopolow, David K. Hood, Drupesh Patel
  • Patent number: 6869612
    Abstract: A purified shilajit composition is provided herein from native shilajit. The composition has an abundance of bioactive components, particularly, at least 0.3%, preferably 0.4-1%, by weight, oxygenated dibenzo-?-pyrones and at least 60%, preferably 65-70%, by weight of fulvic acids of low-to-medium molecular weight ({overscore (M)}n of 700-2000) with an E4/E6 ratio of 8-10 at ?465-665 nm, and whose 2% aqueous solution has a pH of ?7. Personal care, pharmaceutical and nutritional use formulations of the purified shilajit composition also are described.
    Type: Grant
    Filed: August 1, 2002
    Date of Patent: March 22, 2005
    Assignees: Natreon, Inc., Indian Herbs Research & Supply Company Ltd.
    Inventor: Shibnath Ghosal
  • Patent number: 6852815
    Abstract: What is described herein are conditioning/styling tetrapolymers of vinyl caprolactam (VCL), vinylpyrrolidone (VP), dimethylaminopropyl methacrylamide (DMAPMA) and C8-C24 alkyl quaternized dimethylaminopropyl (meth)acrylamide or methacrylic acid quaternized monomers (QDMAPMA), in a defined compositional range. Hair and skin care compositions which include these tetrapolymers exhibit advantageous low tackiness and high humidity resistance.
    Type: Grant
    Filed: May 18, 2004
    Date of Patent: February 8, 2005
    Assignee: ISP Investments Inc.
    Inventors: Jui-Chang Chuang, Janusz Jachowicz, Thomas Winkler, Allen J. Krauss
  • Patent number: 6821941
    Abstract: A tablet of compacted particulate cleaning composition has about 0.5-10% by wt. of a composite disintegrant blend of, by weight, (a) about 20-80% of a water soluble salt, (b) about 80-20% of crosslinked polyvinylpyrrolidone (PVPP), the tablet having a disintegration rate of at least 40 g/min.
    Type: Grant
    Filed: November 13, 2002
    Date of Patent: November 23, 2004
    Assignee: ISP Investments Inc.
    Inventors: Bala Srinivas, Purvita Shah
  • Patent number: 6806334
    Abstract: What is described herein is an excipient for a pharmaceutical tablet which is a proliferous copolymer of vinyl pyrrolidone and vinyl acetate, to provide the tablet with rapid dissolution and disintegration properties, and, also reduced hygroscopicity.
    Type: Grant
    Filed: September 16, 2003
    Date of Patent: October 19, 2004
    Assignee: ISP Investments Inc.
    Inventors: Edward G. Malawer, James P. Cullen, Chi-San Wu, Laurence Senak, William J. Drefko, David K. Hood, Peter J. Brush
  • Patent number: 6806310
    Abstract: Copolymers of dimethylaminopropyl methacrylamide and hydroxyethyl methacrylate having residual monomer levels of <2000 ppm and <500 ppm, respectively, are made by copolymerizing the monomers in a predetermined weight ratio in an aqueous-alcoholic solvent of defined composition. Substrates coated with these copolymers are capable of absorbing the solvents, e.g. water or organic solvents, of digital printing inks rapidly with dry times of <1 min.
    Type: Grant
    Filed: May 22, 2002
    Date of Patent: October 19, 2004
    Assignee: ISP Investments Inc.
    Inventors: Stephen L. Kopolow, Drupesh Patel, Michael Tallon
  • Patent number: 6797793
    Abstract: A process for producing a polymer of a vinyl ether monomer by contacting the monomer with phosphorous pentoxide as polymerization initiator.
    Type: Grant
    Filed: August 14, 2003
    Date of Patent: September 28, 2004
    Assignee: ISP Investments Inc.
    Inventors: Michael A. Tallon, John Mc Kittrick, Stephen L. Kopolow, James Dougherty, David K. Hood
  • Patent number: 6767548
    Abstract: This invention relates to a biocidal composition resistant to the formation of a gel and to the method for stabilizing a concentrate containing, in addition to the biocide, a carbodiimide, a lipophilic/hydrophilic emulsifier mixture having a HLB of 6 to 20 and optionally an oil and/or an alkoxylated ester of a polyhydroxylated compound, by adding to the concentrate an effective anti-gelling amount of an anti-gelling agent selected from the group of an inorganic oxide, a epoxidized naturally occurring or synthetic vegetable oil and an epoxylated ester of a saturated or unsaturated C6 to C18 aliphatic acid optionally containing hydroxy substitution and mixtures of the foregoing anti-gelling agents.
    Type: Grant
    Filed: February 15, 2002
    Date of Patent: July 27, 2004
    Assignee: ISP Investments Inc.
    Inventors: Kolazi S. Narayanan, Domingo Jon, George B. Beestman
  • Patent number: 6740653
    Abstract: This invention relates to the stabilization of o/w microemulsions containing an active aza biocide by addition of an alkaline, water soluble buffering agent in an amount sufficient to adjust the pH to between 6 and 14 and to the use of said o/w microemulsions to control infestations and/or infections when topically applied to livestock or domestic animals.
    Type: Grant
    Filed: December 18, 2001
    Date of Patent: May 25, 2004
    Assignee: ISP Investments Inc.
    Inventors: Kolazi S. Narayanan, Domingo Jon
  • Patent number: 6713538
    Abstract: A post-treatment process for making a water-resistant polymeric coating composition or a strongly-swellable polymeric gel includes providing a stable, aqueous two-phase polymeric composition by the steps of forming a reaction mixture in a reaction vessel which includes a water-soluble vinyl monomer, optionally with one or more water-soluble comonomers, first amount of a crosslinking agent, and water, heating the mixture, then periodically adding a predetermined amount of an initiator, and polymerizing at about 30-130° C., optionally removing the resultant two-phase composition from the reaction vessel, adding a predetermined amount of an additional crosslinker or proteinaceous compound thereto, optionally coating the mixture onto a support, and optionally heating to further polymerize the mixture.
    Type: Grant
    Filed: June 15, 2001
    Date of Patent: March 30, 2004
    Assignee: ISP Investments Inc.
    Inventors: David K. Hood, Stephen L. Kopolow, Michael Tallon, Yoon Tae Kwak, Laurence Senak, Drupesh Patel, John Mc Kittrick
  • Patent number: 6713092
    Abstract: This invention relates to a composition of the plant Withania Somnifera, and, more particularly to a high purity extract composition with advantageous levels of withanolide glycosides and oligosaccharides, a minimum of polysaccharides, and substantially low levels of free withaferin A and equivalents (withanolide aglycones), which composition provides enhanced cognition-enhancing effects for the user, and an extraction process for obtaining such composition, as well as pharmaceutical, nutritional and personal care use products thereof.
    Type: Grant
    Filed: December 3, 2002
    Date of Patent: March 30, 2004
    Assignees: Natreon Inc., Indian Herbs Research & Supply Company Ltd.
    Inventor: Shibnath Ghosal
  • Patent number: 6705050
    Abstract: A flashing device for covering a wall mounted service feed line entering or exiting a building which device comprises a flat plate having a central keyhole shaped opening and a downwardly or horizontally extending hollow sleeve member integrally mounted to the eye portion of the keyhole shaped opening on a plane approximately perpendicular to said plate; the underside of said sleeve having a slot horizontally disposed along its entire length, wherein the opposed edges ends of the horizontal slot are contiguous with the bottom eye portion and the top leg portion of the keyhole shaped opening and the width of the slot is commensurate with the width of the service feed line to or from the building.
    Type: Grant
    Filed: November 9, 2001
    Date of Patent: March 16, 2004
    Assignee: Building Materials Investment Corporation
    Inventor: Charles E. Nichols, Jr.