Patents Examined by Andrew E. C. Merriam
  • Coating composition
    Patent number: 5767171
    Abstract: A hydrolyzable self-polishing coating composition for use in preventing attachment of organisms to the surface of structures submerged in seawater, which comprises an anifoulant and a copolymer of an organosilyl group-containing monomer and a hemiacetal ester group-containing monomer.
    Type: Grant
    Filed: November 17, 1995
    Date of Patent: June 16, 1998
    Assignee: NOF Corporation
    Inventors: Yoshiro Matsubara, Masayasu Itoh, Masahiro Ishidoya, Yoshihiro Honda
  • Stable emulsion blends and methods for their use
    Patent number: 5763523
    Abstract: Stable compositions as flocculants comprising a blend of at least two inverse emulsions, at least one of which is a polymeric microemulsion, provide effective flocculating performance over time. Methods for preparing stable emulsion blends use stabilizing amounts of aldehyde scavenger.
    Type: Grant
    Filed: November 12, 1996
    Date of Patent: June 9, 1998
    Assignee: Cytec Technology Corp.
    Inventors: Haunn-Lin Chen, Richard F. Rice, Louis Rosati, Paul S. Waterman
  • Stable emulsion blends and methods for their use
    Patent number: 5763530
    Abstract: Stable compositions comprising a blend of at least two inverse emulsions, at least one of which is a polymeric microemulsion, provide effective flocculating performance over time. Methods for preparing stable emulsion blends use stabilizing amounts of aldehyde scavenger.
    Type: Grant
    Filed: November 12, 1996
    Date of Patent: June 9, 1998
    Assignee: Cytec Technology Corp.
    Inventors: Haunn-Lin Chen, Richard F. Rice, Louis Rosati, Paul S. Waterman
  • Extended wear ophthalmic lens
    Patent number: 5760100
    Abstract: An ophthalmic lens suited for extended-wear for periods of at least one day on the eye without a clinically significant amount of corneal swelling and without substantial wearer discomfort. The lens has a balance of oxygen permeability and ion or water permeability, with the ion or water permeability being sufficient to provide good on-eye movement, such that a good tear exchange occurs between the lens and the eye. A preferred lens is a copolymerization product of a oxyperm macromer and an ionoperm monomer. The invention encompasses extended wear contact lenses, which include a core having oxygen transmission and ion transmission pathways extending from the inner surface to the outer surface.
    Type: Grant
    Filed: December 8, 1995
    Date of Patent: June 2, 1998
    Assignees: CIBA Vision Corporation, Commonwealth Scientific and Industrial Research Organisation
    Inventors: Paul Clement Nicolson, Richard Carlton Baron, Peter Chabrecek, John Court, Angelika Domschke, Hans Jorg Griesser, Arthur Ho, Jens Hopken, Bronwyn Glenice Laycock, Qin Liu, Dieter Lohmann, Gordon Francis Meijs, Eric Papaspiliotopoulos, Judy Smith Riffle, Klaus Schindhelm, Deborah Sweeney, Wilson Leonard Terry, Jr., Jurgen Vogt, Lynn Cook Winterton
  • Uses of denture adhesive containing aloe extract
    Patent number: 5760102
    Abstract: A method of adhering a denture, having a biocontact surface, to a gum or a roof of a mouth, containing the steps of: (1) Treating the biocontact surface of the denture with a denture adhesive composition containing a chemical substance derived from an aloe leaf to obtain a treated denture; and (2) placing the treated denture in close proximity to a gum or the roof of the mouth thereby engaging the treated denture with the gum or the roof of the mouth. A method of preparing a denture adhesive composition containing a chemical substance derived from an aloe leaf.
    Type: Grant
    Filed: February 20, 1996
    Date of Patent: June 2, 1998
    Assignee: Carrington Laboratories, Inc.
    Inventors: John E. Hall, Kenneth M. Yates
  • Cement and cement composition having improved rheological properties
    Patent number: 5753744
    Abstract: An improved hydraulic cement and resultant hydraulic cement composition which has an alkyl terminated alkoxy amine derivative of maleic acid based polymer or copolymer uniformly distributed therein.
    Type: Grant
    Filed: June 13, 1996
    Date of Patent: May 19, 1998
    Assignee: W.R. Grace & Co.-Conn.
    Inventors: David Charles Darwin, Ellis Martin Gartner, Ahmad Arfaei, Xiaojia Zhang
  • Blended polycaprolactone thermoplastic molding composition
    Patent number: 5753781
    Abstract: Thermoplastic molding compositions are made from a blend of high molecular weight and low molecular weight polycaprolactones. The blends have lower viscosity, and can have higher modulus, than a composition containing only high molecular weight polycaprolactone. The blends are especially useful for dental impressioning.
    Type: Grant
    Filed: September 5, 1991
    Date of Patent: May 19, 1998
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Joel D. Oxman, F. Andrew Ubel, III
  • Denture fixative with an adhesion promoter
    Patent number: 5753723
    Abstract: An improved denture fixative composition comprising an adhesion promoter and a highly cross-linked copolymer of a lower alkyl vinyl ether and maleic anhydride or acid is disclosed wherein at least 65.0% of the total number of initial carboxyl groups in the copolymer are reacted. The cross-linking agent employed in this invention is calcium cation and optionally up to about 30.0% of the calcium function can be replaced with other inorganic cross-linking agents or polyhydroxy compounds either singly or in combination. The adhesion promoters are chelating agents such as polycarboxylic acids, hydroxycarboxylic acids, aminocarboxylic acids, polyphosphoric acids and their alkali salts.
    Type: Grant
    Filed: July 25, 1997
    Date of Patent: May 19, 1998
    Inventors: Tiang Shing Chang, Donna Diferdinando
  • Polymerizable material
    Patent number: 5750590
    Abstract: Polymerizable materials that contain "oxetanes" (trimethylene oxides) shrink only slightly when polymerized in the presence of a cationic polymerization catalyst. The materials are particular appropriate for coatings and for medical and dental purposes.
    Type: Grant
    Filed: July 3, 1996
    Date of Patent: May 12, 1998
    Assignee: Heraeus Kulzer GmbH
    Inventors: Roland Schaefer, Detlef Heindl, Dieter Schodel, Oskar Nuyken, Ralf Bohner, Christoph Erdmann
  • Hydrophilated dental impression compounds
    Patent number: 5750589
    Abstract: The present invention relates to dental impression compounds which contain as hydrophilation agent 0.1 to 10 wt.-%, relative to the total weight of the compound, of a polyether carbosilane.
    Type: Grant
    Filed: May 16, 1996
    Date of Patent: May 12, 1998
    Assignee: Thera Patent GmbH & Co. KG Gesellschaft fur
    Inventors: Joachim Zech, Erich Wanek, Gunther Lechner, Peter Bissinger
  • Fluid acquisition and distribution member for absorbent core
    Patent number: 5749863
    Abstract: Skin wetness is minimized on overnight usage of a disposable absorbent article containing an acquisition and distribution member consisting essentially of C.sub.2 -C.sub.9 polycarboxylic acid crosslinked cellulosic fibers prepared in the presence of surfactant.
    Type: Grant
    Filed: July 11, 1996
    Date of Patent: May 12, 1998
    Assignee: The Procter & Gamble Company
    Inventor: Michael Payne
  • Polymeric compositions
    Patent number: 5747559
    Abstract: A composition comprising an ethylene containing polymer, a crosslinking agent and a treated filler material. The treated filler material comprises a treating agent which is a polymer comprising acrylonitrile and at least one other monomer. A preferred treated filler material is a treated carbon black and a preferred ethylene containing polymer is an ethylene vinyl acetate (EVA) polymer. A semiconductive composition of the present invention may be advantageously utilized in electrical wire and cable application.
    Type: Grant
    Filed: November 22, 1995
    Date of Patent: May 5, 1998
    Assignee: Cabot Corporation
    Inventors: Robert S. Whitehouse, Thomas F. Reed
  • Melt process formation of polymer nanocomposite of exfoliated layered material
    Patent number: 5747560
    Abstract: This invention relates to a process of forming a polymeric nanocomposite comprising a continuous polymeric phase formed from a melt processible polymer having amelt processing temperature equal to or greater than about 220.degree. C. and platelet particles having an average thickness equal to or less than about 50 .ANG. and a maximum thickness of about 100 .ANG. having a secondary or primary ammonium cationic complex, a quaternary phosphonium cationic complex bonded to surface of said particles, the composite material formed by said process and an article formed from the composite material.
    Type: Grant
    Filed: August 7, 1996
    Date of Patent: May 5, 1998
    Assignee: AlliedSignal Inc.
    Inventors: Brian R. Christiani, MacRae Maxfield
  • Process and mixture for applying a coating made of the precious stone lapis lazuli on a substrate and substrate thus produced
    Patent number: 5747168
    Abstract: The presently claimed process for applying a coating to a substrate and coating composition comprises coating on the substrate the composition comprising a mixture of the precious stone pigment lapis lazuli having a grain size of from 5 to 90 microns with a colorless vehicle comprising a lacquer system in an amount effective to encapsulate the stone pigment, the mixture also comprising a pyrite or pulverised material.
    Type: Grant
    Filed: May 9, 1995
    Date of Patent: May 5, 1998
    Inventor: Peter Mack
  • Ink and coating compositions containing silicon-treated carbon black
    Patent number: 5747562
    Abstract: Ink and coating compositions are disclosed comprising a silicon-treated carbon black. The silicon-treated carbon black may have at least one attached organic group, and the ink and coating compositions may comprise a combination of silicon-treated carbon black products, with and/or without at least one attached organic group, and untreated carbon black. Methods are disclosed for improving the jetness, improving the blue tone, improving the platewear, reducing the premix residue, modifying rheological properties, or improving waterfastness, of ink and coating compositions by incorporating therein silicon-treated carbon black.
    Type: Grant
    Filed: June 14, 1996
    Date of Patent: May 5, 1998
    Assignee: Cabot Corporation
    Inventors: Khaled Mahmud, James A. Belmont, Curtis E. Adams, John K. Foster
  • Method and implantable article for promoting endothelialization
    Patent number: 5744515
    Abstract: A porous material with an appropriate surface chemistry that promotes capillary endothelialization is disclosed. The material has a porosity that is sufficient to allow capillary endothelialization and a tenaciously bound adhesion molecule that promotes the ingrowth of endothelial cells into the porosity of the material.
    Type: Grant
    Filed: October 11, 1996
    Date of Patent: April 28, 1998
    Assignee: BSI Corporation
    Inventor: David L. Clapper
  • Polymerizable compositions based on thio (meth) acrylate monomers, polymers with a low yellow index obtained from such compositions, and corresponding ophthalmic lenses
    Patent number: 5741831
    Abstract: Transparent polymer composition comprising:a component A comprising:at least 10% by weight of a monomer or of a mixture of monomers (I), containing at least one thioacrylate or thiomethacrylate function;0 to 90% by weight of one or more monomers (II) which are copolymerizable by a radical route, preferably mono- or polyfunctional vinyl, acrylic or methacrylic; anda component B comprising, relative to the weight of the component A:0.1 to 15% by weight of one or more monomers (III) containing an ethylenic unsaturation which does not contribute to an aromatic system and having a carbon bearing a free hydroxyl group in an .alpha. position relative to the ethylenic unsaturation.Application to the manufacture of ophthalmic lenses.
    Type: Grant
    Filed: May 23, 1996
    Date of Patent: April 21, 1998
    Assignee: Essilor International - Compagnie Generale d'Optique
    Inventors: Gabriel Keita, Peiqi Jiang
  • Sealant compositions and sealed electrical connectors
    Patent number: 5741843
    Abstract: Disclosed are sealant compositions having excellent slump and spew resistant, even at relatively high operating temperatures for electrical connectors. The sealants, which are flowable at such elevated temperatures, comprise two essential components: elastomeric thermoplastic polymer, preferably an organic polymer composite comprising diblock and triblock copolymers, and extender for the polymer. The extender may comprise a primary and a secondary extender, such as polybutene oil and mineral oil, respectively.
    Type: Grant
    Filed: May 31, 1995
    Date of Patent: April 21, 1998
    Assignee: The Whitaker Corporation
    Inventors: Francis Frederick Koblitz, Thomas John Lynch, Ricky Charles Mellinger
  • Water-absorptive soft contact lens
    Patent number: 5741830
    Abstract: A water-absorptive soft contact lens comprising a polymer prepared by polymerizing a monomer mixture comprising (A) a fluorine-containing styrene derivative represented by the general formula (I): ##STR1## wherein R.sup.1 is hydrogen atom or methyl group, m is an integer of 1 to 3 and n is 0 or an integer of 1 to 7, and (B) N, N-dimethyl(meth)acrylamide. The water-absorptive soft contact lens has excellent oxygen permeability, high mechanical strength and excellent flexibility independent of water content.
    Type: Grant
    Filed: February 13, 1996
    Date of Patent: April 21, 1998
    Assignee: Menicon Co., Ltd.
    Inventors: Miyuki Kamiya, Naotaka Kamiya, Noriko Iwata, Yasushi Yamamoto, Yasuo Tarumi
  • Method and apparatus for separating polymer from a plastic, and the resulting separated polymer
    Patent number: 5739270
    Abstract: A method and apparatus for continuously separating polymer from a plastic, and the resulting separated polymer. The plastic is made flowable into a stream through melting or solubilizing. A critical fluid, such as supercritical carbon dioxide, is added to the plastic stream to promote mechanical or thermodynamic separation of the polymer from contaminants and other components of the plastic.
    Type: Grant
    Filed: August 1, 1995
    Date of Patent: April 14, 1998
    Inventors: Peter H. Farmer, John M. Moses