Patents Represented by Attorney William J. Davis

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  • Post-treatment of a polymeric composition
    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
  • Flashing device
    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.
  • Polymeric hydrogels
    Patent number: 6706817
    Abstract: What is described is a polymeric hydrogel of a polymeric anhydride or acid, e.g. maleic anhydride or maleic acid polymer, or copolymer thereof, crosslinked with a crosslinking agent containing at least 2 crosslinkable groups, particularly, —OH or —NH2, or both. The reaction product is a crosslinked polymeric ester or amide/imide, or both, suitably having a mole ratio of —OH, or —NH2, to —COOH, of 1:10 to 10:1, preferably 2:10 to 7:1. The hydrogel is particularly swellable in water, e.g. >100% in 1 hour in aqueous media; and forms a thin, tacky layer on a substrate, which property is useful in bioadhesive products.
    Type: Grant
    Filed: March 26, 2003
    Date of Patent: March 16, 2004
    Assignee: ISP Investments Inc.
    Inventors: Krystyna Plochocka, Jeffrey A. Lynn
  • Process for making fiber mats for materials of construction having improved tear strength
    Patent number: 6706147
    Abstract: The invention relates to a coated fiber mat of improved tear strength upon dividing pieces of the coated mat and the coating which comprises a cured, non-woven, fiber glass mat containing a polysiloxane wherein the fibers are fixedly distributed in a formaldehyde type binder containing a binder modifier which is a crosslinked styrene/acrylic polymer, and to a process for the preparation of the mat.
    Type: Grant
    Filed: December 9, 2002
    Date of Patent: March 16, 2004
    Assignee: Building Materials Investment Corporation
    Inventors: Qinyun Peng, Krishna Srinivasan
  • Inkjet printing composition
    Patent number: 6682188
    Abstract: An inkjet printing composition for coating a substrate to receive dye images thereon includes: (a) a polymer for absorbing said dye images, and (b) a dye fixative therein to inhibit migration of dye images from one part of the substrate to other portions thereof.
    Type: Grant
    Filed: June 27, 2002
    Date of Patent: January 27, 2004
    Assignee: ISP Investments Inc.
    Inventors: Stephen L. Kopolow, John M C Kittrick, Michael Tallon
  • Stable, aqueous cationic hydrogel
    Patent number: 6667029
    Abstract: A stable, aqueous cationic hydrogel of, by weight, 1-50% of a crosslinked cationic copolymer of 5-95% vinylpyrrolidone (VP) and 5-95% 3-dimethylaminopropyl(meth)acrylamide (DMAPMA) monomers, a crosslinking agent in an amount of 0.05-1% of said monomers, and water is described. The hydrogel has a pH of about 10 and a Brookfield viscosity of about 650 (Model DV-II+, RV spindle #3, speed 10 rpm); it can increase its viscosity by up to 40× at a pH of 3-9 and absorb up to 200× its weight of water. The hydrogel also can effectively condition hair even in the presence of an anionic surfactant.
    Type: Grant
    Filed: January 12, 2001
    Date of Patent: December 23, 2003
    Assignee: ISP Investments Inc.
    Inventors: Yuanzhen Zhong, Janusz Jachowicz, Philip F. Wolf, Roger L. Mc Mullen, Jr.
  • Leach resistant oil based carrier for cosmetically and pharmaceutically active agents
    Patent number: 6664356
    Abstract: This invention relates to a non-leachable, oil based carrier derived from the anhydrous free radical solution polymerization of a water insoluble acrylate and/or acrylamide monomer in an oil medium for use in long lasting skin lubricating formulations.
    Type: Grant
    Filed: January 23, 2003
    Date of Patent: December 16, 2003
    Assignee: ISP Investments Inc.
    Inventor: Jenn S. Shih
  • Substrate for color inkjet printing
    Patent number: 6641259
    Abstract: A method of color inkjet printing on a substrate coated with a substantially colorless, 90-10 to 30-70, wt/wt, copolymer of vinyl pyrrolidone and vinyl imidazole, by inkjet printing dye images on the thus-coated substrate, characterized in that the dye images obtained exhibit excellent light fastness.
    Type: Grant
    Filed: June 5, 2002
    Date of Patent: November 4, 2003
    Assignee: ISP Investments Inc.
    Inventors: Stephen L. Kopolow, Drupesh Patel, Yoon Tae Kwak, Michael Tallon, David K. Hood, Laurence Senak, John M C Kittrick
  • Process for making a solution of copolymers of maleic anhydride and alkyl vinyl ether in isopropyl acetate of high specific viscosity and at a high solids level
    Patent number: 6624271
    Abstract: A process for making a solution of a copolymer of maleic anhydride (MA) and methyl vinyl ether (MVE) monomers the specific viscosity (SV) of the product being about 2.5-6, preferably 3-5, indicating a weight average molecular weight of substantially above one million, preferably above 1.5 million and a solids content of about 20-45%, preferably 30-40, in isopropyl acetate (IPAc), solvent includes the steps of (a) precharging part of MVE in IPAc into a reactor heated to about 50-90° C., and then (b) feeding (i) a solution of MA in IPAc, (ii) the rest of MVE, at a mole ratio of MA:MVE of 1:≧1.5 to 1:<3, preferably 1:2.4, and (iii) a free radical initiator dissolved in IPAc, in an amount of 0.02-0.3%, preferably 0.05-0.2%, based on total monomers, into the reactor over time. Powders of such MA/MVE copolymers are made by removing the solvent from the solution.
    Type: Grant
    Filed: November 26, 2002
    Date of Patent: September 23, 2003
    Assignee: ISP Investments Inc.
    Inventors: Yoon Tae Kwak, Stephen L. Kopolow, Alan J. Carlin
  • Aqueous dispersions of low-molecular weight, low-melting and water insoluble polymers
    Patent number: 6624242
    Abstract: An aqueous dispersion of (a) 0.1-40% by wt. of a low molecular weight, low melting point, water-insoluble polymer in which the polymer particles have a size <10 microns, and (b) 0.001-30% by wt. of an anionic emulsifier.
    Type: Grant
    Filed: August 8, 2001
    Date of Patent: September 23, 2003
    Assignee: ISP Investments Inc.
    Inventors: James F. Curry, Kolazi S. Narayanan, Ronald H. Goehner, Jr., Domingo I. Jon, George B. Beestman
  • Tablet coating composition
    Patent number: 6620426
    Abstract: A tablet coating composition including a mixture of (a) sodium alginate and (b) a polyvinylpyrrolidone-vinyl acetate copolymer, and, optionally, (c) hydroxypropylmethyl cellulose, and/or hydroxypropyl cellulose.
    Type: Grant
    Filed: June 5, 2001
    Date of Patent: September 16, 2003
    Assignee: ISP Investments Inc.
    Inventors: Antonio Moroni, Nadhamuni G. Nerella, William Drefko
  • Water-resistant color inkjet receptive films
    Patent number: 6620521
    Abstract: What is described herein is a process for preparing a lightly-crosslinked copolymer of (a) vinyl pyrrolidone (VP) and (b) dimethylaminopropyl methacrylamide (DMAPMA) under more reproducible conditions. Suitably the weight ratio of (a):(b) is 50-95:50-5, preferably 80:20. The copolymer has a Brookfield viscosity of 5,000 to 45,000 cps; preferably 10,000 to 30,000 cps, and a haze of <100 NTU; it includes about 0.1 to 0.5 wt. %, preferably 0.2 to 0.4 wt. %, of a cross-linking agent based upon the total weight of the monomers in the copolymer.
    Type: Grant
    Filed: September 15, 2000
    Date of Patent: September 16, 2003
    Assignee: ISP Investments Inc.
    Inventors: Yoon Tae Kwak, Stephen L. Kopolow
  • Proliferous copolymer of vinyl pyrrolidone and vinyl acetate
    Patent number: 6620900
    Abstract: What is described herein is a pharmaceutical excipient which is a proliferous copolymer of vinyl pyrrolidone and vinyl acetate, having advantageous dissolution and disintegration properties.
    Type: Grant
    Filed: February 7, 2002
    Date of Patent: September 16, 2003
    Assignee: ISP Investments Inc.
    Inventors: Edward G. Malawer, James P. Cullen, Chi-San Wu, Laurence Senak, William J. Drefko
  • Process of making polymeric hydrogel products
    Patent number: 6617372
    Abstract: What is described is a polymeric hydrogel product of a stable, aqueous polymeric composition which composition forms a clear to translucent film upon application to a substrate, and includes, by weight, 5-75% of (a) a water-soluble polymer having (b) in situ-formed, substantially water-insoluble resinous particles of said polymer substantially uniformly dispersed therein, and (c) 25-95% of water, made by irradiating the composition with high energy electron beam or gamma-radiation.
    Type: Grant
    Filed: October 23, 2001
    Date of Patent: September 9, 2003
    Assignee: ISP Investments Inc.
    Inventor: Laurence Senak
  • Liquid compositions of IPBC in polyethylene glycol, polypropylene glycol or polypropylene glycol glyceryl esters
    Patent number: 6616740
    Abstract: Liquid compositions consisting essentially of by weight, 0.1-50% IPBC in 99.9-50% polyethylene glycol, polypropylene glycol or polypropylene glycol glyceryl ester, or mixtures thereof, which do not contribute to the VOC of paints and coatings and is stabilized effectively against discoloration even at elevated temperatures or direct sunlight.
    Type: Grant
    Filed: December 6, 2002
    Date of Patent: September 9, 2003
    Assignee: ISP Investments Inc.
    Inventors: Karen Winkowski, Xianbin Liu, Claudinei A. Fava, Daniel H. Brown
  • Roofing granules with a decorative metallic appearance
    Patent number: 6607781
    Abstract: Colored roofing granules and methods for their preparations, having decorative metallic appearance and enhanced stability against discoloration of color containing a silica-encapsulated metallic flake or colored lamellar effect pigment distributed in an insolubilized alkali silicate coating.
    Type: Grant
    Filed: January 15, 2003
    Date of Patent: August 19, 2003
    Assignee: ISP Investments Inc.
    Inventor: Ingo B. Joedicke
  • Laundry detergent compositions containing a soil release polymer
    Patent number: 6586387
    Abstract: A laundry detergent composition which includes a standard detergent formulation and an effective soil releasing amount of vinyl caprolactam homopolymer having a K-value of at least 40, preferably 40-50.
    Type: Grant
    Filed: April 6, 2001
    Date of Patent: July 1, 2003
    Assignee: ISP Investments Inc.
    Inventors: Bala Srinivas, Jenn S. Shih
  • Roof shingle
    Patent number: D482141
    Type: Grant
    Filed: April 10, 2002
    Date of Patent: November 11, 2003
    Assignee: Building Materials Investment Corporation
    Inventor: Tommy F. Rodrigues
  • Roof shingle
    Patent number: D484992
    Type: Grant
    Filed: April 11, 2003
    Date of Patent: January 6, 2004
    Assignee: Building Materials Investment Corporation
    Inventor: Tommy F. Rodrigues
  • Drain pan
    Patent number: D485283
    Type: Grant
    Filed: February 19, 2003
    Date of Patent: January 13, 2004
    Assignee: Building Materials Investment Corporation
    Inventor: Ronald D. Shuck