Patents Examined by Judy M. Reddick
  • Patent number: 7105594
    Abstract: An adhesive having a resin selected from polyvinyl butyral resins, phenolic resins, epoxy resins, and mixtures thereof, and at least one type of filler such as a carbon filler, for use in seaming components useful in electrostatographic, contact electrostatic, digital and other like machines.
    Type: Grant
    Filed: April 11, 2001
    Date of Patent: September 12, 2006
    Assignee: Xerox Corporation
    Inventors: Ihor W. Tarnawskyj, Joseph A. Swift, Christopher P. Manos, Theodore Lovallo
  • Patent number: 7012116
    Abstract: This invention relates, in general, to blend compositions of an unmodified poly vinyl alcohol and a thermoplastic elastomer and thermoplastic film and fiber structures comprising these blend compositions. More specifically, this invention relates to substantially water-free films and fibers comprising unmodified polyvinyl alcohol and a thermoplastic elastomer.
    Type: Grant
    Filed: August 1, 2000
    Date of Patent: March 14, 2006
    Assignee: Kimberly-Clark Worldwide, Inc.
    Inventors: David Michael Schertz, James Hongxue Wang, Gregory J. Wideman, William S. Pomplun
  • Patent number: 6998435
    Abstract: An aqueous adhesive composition is provided which comprises a major amount by weight of an aqueous acrylate emulsion having a viscosity of about 500 centipoise (cps) to about 10,000 cps at a temperature ranging from about 15° C. to about 45° C. and a minor amount by weight of a thickener for the adhesive composition which is an aqueous acrylic emulsion containing carboxylate groups and having a viscosity of at least 100,000 cps at a temperature ranging from about 25° C. to about 45° C. composition. The adhesive is particularly useful in the labelling of water-permeable hydrophilic substrates such as paper labels to non-treated plastic surfaces particularly plastics such as polystyrene, polycarbonate, polyvinyl chloride, and polyethylene terephthalate.
    Type: Grant
    Filed: October 22, 2002
    Date of Patent: February 14, 2006
    Assignee: Henkel Corporation
    Inventors: Thomas Hungrige, Larry Uy, Danilo Go-pinas
  • Patent number: 6964993
    Abstract: A paper coating slip contains a polymer dispersed with polyvinyl alcohol as protective colloid in water (abbreviated to PVA-dispersed polymer).
    Type: Grant
    Filed: May 19, 2004
    Date of Patent: November 15, 2005
    Assignee: BASF Aktiengesellschaft
    Inventors: Reinhold J. Leyrer, Harutyun Hanciogullari
  • Patent number: 6958371
    Abstract: The present invention discloses water-soluble compositions comprising a blend of poly(ethylene oxide) and poly(vinyl alcohol) that have improved ductility over water-soluble compositions comprising poly(vinyl alcohol) alone. In one desirable embodiment of the present invention, the poly(ethylene oxide) component of the blend is grafted. Grafted poly(ethylene oxide) resins have improved processability and improved blend compatibility with poly(vinyl alcohol). Films comprising a melt blend of poly(vinyl alcohol) and grafted poly(ethylene oxide) have improved melt processability as well as other improved properties. Films comprising compositions of the present invention have improved ductility over films comprising poly(vinyl alcohol) alone while retaining much of the high strength and water solubility exhibited by such poly(vinyl alcohol) films.
    Type: Grant
    Filed: June 19, 2000
    Date of Patent: October 25, 2005
    Assignee: Kimberly-Clark Worldwide, Inc.
    Inventors: James Hongxue Wang, David Michael Schertz
  • Patent number: 6951896
    Abstract: The invention relates to a flame-retardant thermoplastic composition which comprises at least (A) a thermoplastic polymer and (B) a flame-retardant system and which also contains (C) an n-alkanelactam-substituted polymer. Such a composition shows both a good flame retardancy, in particular a short afterflame time and little dripping, and also excellent mechanical properties. In particular, the n-alkanelactam-substituted polymer is a polyolefine, substituted with n-alkanelactam groups, with n being chosen from between 2 and 12. More in particular, the n-alkanelactam is polyvinyl pyrrolidone. Preferably, the thermoplastic polymer is a polycondensation polymer, in particular a polyamide, a polyester or a polycarbonate. Particularly suitable for use as the polyamide are PA-6, PA-6,6, PA-4,6 and semi-aromatic polyamides. The flame-retardant system may be both a halogen-containing and a halogen-free system.
    Type: Grant
    Filed: March 25, 2002
    Date of Patent: October 4, 2005
    Assignee: DSM IP Assets B.V.
    Inventor: Johannes H. G. Ottenheijm
  • Patent number: 6936648
    Abstract: An aqueous coating formulation containing solids, for enhancing image visualization and retention of acid dye-based inks includes a cationic polymer or copolymer, a fabric softener, urea, and ammonium salts of multifunctional weak acids. Desirably the ammonium salts are selected from the group consisting of ammonium oxalate and ammonium tartrate.
    Type: Grant
    Filed: October 26, 2001
    Date of Patent: August 30, 2005
    Assignee: Kimberly-Clark Worldwide, Inc
    Inventors: Alison Salyer Bagwell, Kelly Dean Branham, Mary Elizabeth Kister, Leonard Eugene Zelazoski
  • Patent number: 6911498
    Abstract: A curing composition of a fluororubber comprising a fluororubber which is curable with an organic peroxide, for example, an iodine-containing fluororubber, a polyfunctional unsaturated compound, and an organic peroxide, for example, dicumyl peroxide, in which the total amount of acetone and tert.-butanol contained in the decomposed products of the organic peroxide, which are generated at a curing temperature, is 2 moles or less per one mole of the decomposed products.
    Type: Grant
    Filed: April 14, 1998
    Date of Patent: June 28, 2005
    Assignee: Daikin Industries Ltd.
    Inventors: Koji Matsumoto, Yoshihiro Shirai
  • Patent number: 6911254
    Abstract: Laminates are disclosed having interlayers containing an infrared absorbing amount of lanthanum hexaboride (LaB6) coated on or dispersed in a thermoplastic polymeric matrix. Preferably, the LaB6 is combined with other materials, such as indium tin oxide, antimony tin oxide, organic dyes or pigments in a polymeric matrix of polyvinyl butyral (PVB). Alternatively, LaB6 is coated on a sheet of polyethylene terephthalate and encapsulated with one or more sheets of PVB. The interlayers having LaB6 dispersed therein or coated thereon are advantageously combined with encapsulation layers, reflective layers, dyed layers and/or pigmented layers.
    Type: Grant
    Filed: May 16, 2002
    Date of Patent: June 28, 2005
    Assignee: Solutia, Inc.
    Inventors: W. Keith Fisher, Paul D. Garrett, Howard D. Booth, Jr., James R. Moran
  • Patent number: 6906146
    Abstract: Disclosed is a process for esterifying and/or transesterifying a polymer having a polyethylenic backbone and pendant acid and/or ester moieties comprising contacting a melt of the polymer with a transesterifying compound so that the polymer undergoes esterification and/or transesterification but not alcoholysis. The esterified or transesterified polymer also has pendant ester moieties which differ in kind and/or number from the unreacted polymer. In one embodiment, the process also comprises adding an amount of a transition metal salt that is effective to promote oxygen scavenging. Also in a further embodiment, the process comprises irradiating the transesterified polymer with actinic radiation to reduce the induction period before oxygen scavenging commences. Also disclosed are compositions comprising a component which comprises an ethylenic or polyethylenic backbone and a pendant or terminal moiety comprising a benzylic, allylic, or ether-containing radical.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: June 14, 2005
    Assignee: Phillips Petroleum Company
    Inventors: Ta Yen Ching, Kiyoshi Katsumoto
  • Patent number: 6903156
    Abstract: The present invention relates to light fast, aqueous, strippable coating compositions containing A) 40 to 90 wt. %, based on resin solids of A) and B), of aqueous polyurethane-polyureas and B) 10 to 60 wt. %, based on resin solids of A) and B), of polymers prepared from radically polymerizable monomers, wherein the percentages of A) and B) add up to 100, based on the weight of resin solids of A) and B). The present invention relates also to substrates coated with these strippable coating compositions. In addition, the present invention relates to the use of the stripped coatings as recycled material by mechanically comminuting the stripped coatings, optionally after cleaning, and then either pressing them in heatable presses to form sheets, or extruding them in an extruder to form endless thermoplastic threads, and then processing the resulting threads by known granulating methods to form cylindrical, spherical, lenticular or rhombic granules.
    Type: Grant
    Filed: March 5, 2001
    Date of Patent: June 7, 2005
    Assignee: Bayer Aktiengesellschaft
    Inventors: Hanns-Peter Müller, Horst Gruttmann, Joachim Petzoldt, Heino Müller, Christoph Irle
  • Patent number: 6903159
    Abstract: A method for producing a saponified ethylene-vinyl acetate copolymer which comprises saponifying an ethylene-vinyl acetate copolymer in an alcohol-based solvent with an alkali catalyst, wherein an amount between 100 ppm and 15,000 ppm of water with respect to the ethylene-vinyl acetate copolymer is supplied into the alcohol-based solvent. According to this method, discoloration, etc. of a saponified ethylene-vinyl acetate copolymer is inhibited, and visual characteristics of the saponified copolymer are improved.
    Type: Grant
    Filed: August 22, 2001
    Date of Patent: June 7, 2005
    Assignee: Kuraray Co., Ltd.
    Inventor: Noboru Yanagida
  • Patent number: 6897255
    Abstract: Novel latex or emulsion compositions containing internally plasticizing and crosslinkable long-chain alkenol ester monomers are disclosed and claimed. Preferred embodiments include latex formed from acrylate or methacrylate esters of long-chain alkenols. A process for the synthesis of the latex composition is also disclosed, which involves (a) esterification of a long-chain alkenol with an ethylenically unsaturated carboxylic acid; (b) polymerization of the ethylenically unsaturated ester in an aqueous phase with at least one other copolymerizable monomer; and (b) blending of so formed polymer with at least one drier and a surfactant to form the novel latex or emulsion compositions. These compositions form films at low minimum film forming temperatures (MFT) ranging from ?5 to 10° C. and cure to above ambient glass transition (Tg) polymers without the use of traditional organic cosolvents which contribute to environmental pollution via volatile organic compounds (VOCs) emissions.
    Type: Grant
    Filed: December 14, 1999
    Date of Patent: May 24, 2005
    Assignee: University of Southern Mississippi
    Inventors: Shelby Freland Thames, Kamlesh Gopichand Panjnani, Olan Stanley Fruchey
  • Patent number: 6894099
    Abstract: This invention relates to a novel stabilized borax based fire retardant system. More particularly, this invention pertains to a borax containing fire retardant system which is stabilized and resists leaching and oxidation when combined as a coating or an impregnation with a suitable substrate such as wood, plastic or the like. A stabilized borate suspension useful for providing fire retardancy to a substrate comprising: (a) a liquid polyacrylate suspension; (b) a liquid polytetrafluoroethylene suspension; (c) a borate powder; (d) a liquid vinyl acetate co-polymer suspension; and (e) sufficient water to incorporate components (a), (b), (c) and (d) to form an emulsion.
    Type: Grant
    Filed: July 3, 2002
    Date of Patent: May 17, 2005
    Assignee: Ecoseal Technologies Inc.
    Inventor: Richard Moore
  • Patent number: 6891013
    Abstract: The present invention provides, inter alia, novel fluorinated polyurethane elastomers (e.g., fluorinated thermoset polyurethane elastomers and fluorinated thermoplastic elastomers) prepared from polyether prepolymers formed from mono-substituted fluorinated oxetane monomers (FOX monomers) and tetrahydrofuran (THF). In addition, the present invention provides methods of making such fluorinated polyurethane elastomers.
    Type: Grant
    Filed: March 8, 2000
    Date of Patent: May 10, 2005
    Assignee: Aerojet-General Corporation
    Inventors: Aslam A. Malik, Thomas G. Archibald
  • Patent number: 6890976
    Abstract: An aqueous emulsion for imparting water repellency characteristics to gypsum products comprising: a) a hydrocarbon wax: b) a polyolefin-maleic anhydride graft polymer; and c) a polyvinyl alcohol composition comprising partially and/or fully hydrolyzed polyvinyl acetate. The emulsion may also contain other known ancillary components such as emulsifiers and stabilizers.
    Type: Grant
    Filed: June 3, 2002
    Date of Patent: May 10, 2005
    Assignee: Walker Industries Holdings Limited
    Inventor: Laurence Anthony Sinnige
  • Patent number: 6887933
    Abstract: An aqueous acrylic emulsion polymer including, as copolymerized units, 70 to 99.5% by weight, based on dry polymer weight, monoethylenically unsaturated nonionic (meth)acrylic monomer and from 0.3 to 10% by weight, based on dry polymer weight, monoethylenically unsaturated acid monomer, wherein at least 40% by weight, based on dry polymer weight, of the emulsion polymer is formed by redox polymerization in the presence of 0.001 to 0.05 moles chain transfer agent per kg dry polymer weight is provided. An aqueous coating composition including the acrylic emulsion polymer, a method for improving the scrub resistance of a dry coating, a method for improving the adhesion of a dry coating, and a method for improving the adhesion of a dry coating to an alkyd substrate are provided.
    Type: Grant
    Filed: October 22, 2001
    Date of Patent: May 3, 2005
    Assignee: Rohm and Haas Company
    Inventor: Ralph Craig Even
  • Patent number: 6884840
    Abstract: A process for preparing hot-melt pressure-sensitive adhesives from aqueous dispersions based on polyacrylate, and pressure-sensitively adhesive articles produced therefrom, which comprises producing highly concentrated aqueous dispersions with polymer contents between 68% by weight and 87% by weight of gel-free, molecularly-dispersely meltable polymer particles with an at least bimodal size distribution in size ranges between 0.5 ?m and 1000 ?m Ø.
    Type: Grant
    Filed: March 22, 2001
    Date of Patent: April 26, 2005
    Assignee: tesa AG
    Inventors: Peter Gleichenhagen, Annemarie Müller
  • Patent number: 6884835
    Abstract: This invention relates to a process for making a vulcanized rubber article comprising the steps of (1) kneading at a temperature within the range of about 70° C. to about 190° C. in a bulk thermomechanical mixer (a) an amino group containing rubbery polymer, wherein said amino group containing rubbery polymer contains from about 0.1 weight percent to about 20 weight percent monomer units containing an amino group, (b) from 0.
    Type: Grant
    Filed: February 20, 2004
    Date of Patent: April 26, 2005
    Assignee: The Goodyear Tire & Rubber Company
    Inventors: Manoj Ajbani, Wen-Liang Hsu, Adel Farhan Halasa, Ginger Lee, Eric Sean Castner
  • Patent number: 6881778
    Abstract: A polyvinyl alcohol copolymer latex composition comprises an intimate polymer composition obtained from 10% to 60% by weight of a substantially hydrolyzed low molecular weight polyvinyl alcohol (PVOH); 2% to 80% by weight of at least one diene; 2% to 80% by weight of at least one hydrophobic monomer other than a diene and optionally either up to 10% by weight of at least one hydrophilic ethylenically unsaturated acid monomer or up to 40% by weight of a cationic monomer. The copolymer latex composition can be prepared as an emulsion from an aqueous blend of the above listed monomers which are generally added at various stages during the polymerization and a free radical initiator, surfactants, and, if desirable, chain transfer agents. Up to 80% of the PVOH may be added after the monomers have been polymerized.
    Type: Grant
    Filed: December 19, 2002
    Date of Patent: April 19, 2005
    Assignee: OMNOVA Solutions Inc.
    Inventors: Nick G. Triantafillopoulos, Carla B. Dittman-McBain, I. John Westerman, Michael F. Richardson, William C. Floyd