With Water Nrm Patents (Class 524/446)
  • Patent number: 6399690
    Abstract: Intercalated layered materials prepared by co-intercalation of a multi-charged onium ion spacing/coupling agent and a matrix polymer between the planar layers of a swellable layered material, such as a phyllosilicate, preferably a smectite clay. The spacing of adjacent layers of the layered materials is expanded at least about 3 Å, preferably at least about 5 Å, usually to about 15-20 Å, e.g., 18 Å with the di-charged onium ion spacing/coupling agent. The intercalation of the matrix polymer then increases the spacing between adjacent layers to at least about 15 Å, preferably to about 20 Å to about 30 Å.
    Type: Grant
    Filed: March 7, 2001
    Date of Patent: June 4, 2002
    Assignee: AMCOL International Corporation
    Inventors: Tie Lan, Erin K. Westphal, Vasiliki Psihogios, Ying Liang
  • Patent number: 6391449
    Abstract: This invention relates to a polymer-clay intercalates, exfoliates, nanocomposites and methods of manufacturing comprising (i) a melt-processible matrix polymer, and incorporated therein (ii) a mixture of at least two layered clay materials. The invention also relates to articles produced from a nanocomposite and a process for preparing a nanocomposite.
    Type: Grant
    Filed: December 1, 1999
    Date of Patent: May 21, 2002
    Assignee: AMCOL International Corporation
    Inventors: Tie Lan, Vasiliki Psihogios, Robert Boyd Barbee, James Christopher Matayabas, Jr., John Walker Gilmer
  • Patent number: 6387996
    Abstract: This invention relates to a polymer-clay nanocomposite having an improved gas permeability comprising (i) a melt-processible matrix polymer, and incorporated therein (ii) a layered clay material intercalated with a mixture of at least two organic cations. The invention also relates to processes for preparing a nanocomposite and articles produced from a nanocomposite.
    Type: Grant
    Filed: December 1, 1999
    Date of Patent: May 14, 2002
    Assignee: AMCOL International Corporation
    Inventors: Tie Lan, John Walker Gilmer, James Christopher Matayabas, Jr., Robert Boyd Barbee
  • Publication number: 20020055579
    Abstract: A vinyl alcohol polymer composition (II) is produced by a process of providing a reaction liquid comprising a solution containing a vinyl carboxylate polymer and, a first metal alkoxide (I) having at least one functional group and/or an oligomer (I) having at least one functional group obtained from said metal alkoxide (I); a step of simultaneously effecting (a) saponification of said vinyl carboxylate polymer and (b) reaction in which at least part of the functional groups of said metal alkoxide (I) and/or said oligomer (I) participates, thereby obtaining a vinyl alcohol polymer composition (I); and a step of preparing a solution (A) containing said vinyl alcohol polymer composition (I), followed by adding to the solution (A) a second metal alkoxide (II) and/or an oligomer (II) obtained from the metal alkoxide (II) or another solution (B) containing the metal alkoxide (II) and/or the oligomer (II) derived from the metal alkoxide (II), to prepare an intermediate product solution (C), and then removing the sol
    Type: Application
    Filed: July 30, 2001
    Publication date: May 9, 2002
    Applicant: Kuraray Co., Ltd.
    Inventors: Tatsuya Oshita, Goki Uehara, Nobuhisa Senda, Yoshiki Takeda, Yukiatsu Komiya, Syuichi Kanao, Shigeki Takada, Naoki Kawakami, Kanenori Ito
  • Patent number: 6375866
    Abstract: An electrically conductive paint for applying to substrates to make articles of manufacture including EMI/RFI shielded housings of electronic components and printing plates comprises a cross-linked organic resin binder containing cross-linkable functional groups such as OH groups, electrically conductive metallic particles, preferably a mixture of silver flakes and silver-coated copper flakes, a solvent, a cross-linking agent which cross-links with itself and with the functional groups of the organic binder and preferably a catalyst which accelerates cross-linking of the cross-linking agent and organic binder. Using such a paint formulation it has been found that thinner coatings can be used while still exceeding the properties needed for EMI/RFI shielding of housing for electronic components.
    Type: Grant
    Filed: January 7, 2000
    Date of Patent: April 23, 2002
    Assignee: Enthone, Inc.
    Inventors: Vincent Paneccasio, Jr., Mark P. Chasseā€²
  • Patent number: 6350805
    Abstract: The invention relates to a process for the preparation of a polyamide nanocomposite composition by mixing in the melt phase a polyamide, a solid substance composed of anisotropic particles with a high aspect ratio and a liquid, the liquid being added to and subsequently mixed with a melt comprising at least the polyamide. Preferably water is chosen as the liquid. The invention also relates to a polyamide nanocomposite composition obtained by mixing in the melt phase a polyamide and a non-swollen solid substance composed of particles with a high aspect ratio. The polyamide nanocomposite compositions obtained with the process according to the invention and the polyamide nanocomposite compositions according to the invention can be used in all moulded parts which can be produced with a polyamide composition and which demand particularly good mechanical properties, for example for use in the motor compartment of a vehicle, for casings and for connectors.
    Type: Grant
    Filed: June 12, 2000
    Date of Patent: February 26, 2002
    Assignee: DSM N.V.
    Inventors: Roland A. Korbee, Albert A. Van Geenen
  • Publication number: 20020022678
    Abstract: This invention relates to a polymer-clay intercalates, exfoliates, nanocomposites and methods of manufacturing comprising (i) a melt-processible matrix polymer, and incorporated therein (ii) a mixture of at least two layered clay materials. The invention also relates to articles produced from a nanocomposite and a process for preparing a nanocomposite.
    Type: Application
    Filed: December 1, 1999
    Publication date: February 21, 2002
    Inventors: TIE LAN, VASILIKI PSHIHOGIOS, ROBERT BOYD BARBEE, JAMES CHRISTOPHER MATAYABAS, JOHN WALKER GILMER
  • Publication number: 20020004550
    Abstract: A stable aqueous liquid polymer composition, which comprises:
    Type: Application
    Filed: July 9, 2001
    Publication date: January 10, 2002
    Applicant: COATEX S.A.
    Inventors: Jean-Bernard Egraz, Georges Ravet, Jean-Marc Suau, Isabelle Capra-Ogier, Henri Grondin
  • Patent number: 6335395
    Abstract: A process for making a stable coating comprising an inorganic, anionic pigment, an organic, anionic binder and an organic, cationic mordant comprising: a) mixing the inorganic, anionic pigment with the organic, cationic mordant; b) lowering the pH of the mixture to below about 4; and c) adding the organic, anionic binder to the mixture, thus providing a coating composition which has an approximately constant viscosity over a period of time.
    Type: Grant
    Filed: December 1, 1999
    Date of Patent: January 1, 2002
    Assignee: Eastman Kodak Company
    Inventors: Sridhar Sadasivan, Suresh Sunderrajan, Michelle M. Oakland, Patrick J. Whittaker, Elwood C. Samons, Craig T. Mollon
  • Patent number: 6329449
    Abstract: The invention relates to a process for the preparation of finely divided rubbers (rubber powders) by precipitation from aqueous mixtures, which comprise filler in the form of suspensions, water-soluble salts of a metal of groups IIa, IIb, IIIa and VIII of the periodic table of the elements arid a rubber latex (polymer latex), aqueous emulsions of a rubber or rubber solution, in which one or more organosilicon compound(s) containing at least one alkoxy group is or are dissolved or emulsified, optionally in the presence of a surface-active substance, in water, or the compounds mentioned are mixed directly, optionally with a surface-active substance, with an aqueous suspension of an oxidic or silicatic finely divided filler or a mixture of these fillers at a temperature of 10 to 60° C., preferably at room temperature, while stirring, the amount of this mixture envisaged for incoporation in the rubber, based on the filler content, in general being divided into two batches.
    Type: Grant
    Filed: September 22, 1999
    Date of Patent: December 11, 2001
    Assignee: PKU Pulverkautschuk Union GmbH
    Inventors: Udo Gorl, Reinhard Stober, Hartmut Lauer, Uwe Ernst
  • Publication number: 20010049413
    Abstract: The present invention provides a novel organic/inorganic hybrid hydrogel which is superior in homogeneity, transparency, mechanical properties, and in swelling and shrinking properties, a manufacturing method therefore, and a dry body of the organic/inorganic hybrid hydrogel which is obtained by removing water from said hydrogel. The organic/inorganic hybrid hydrogel comprises a water soluble polymer (A), a water swelling clay mineral (B) which can be homogeneously dispersed in water, and water (C), and water (C) is included in a three-dimensional network formed by (A) and (B).
    Type: Application
    Filed: May 25, 2001
    Publication date: December 6, 2001
    Applicant: Kawamura Institute of Chemical Research
    Inventor: Kazutoshi Haraguchi
  • Publication number: 20010047048
    Abstract: Disclosed is a fluoroelastomer composition comprising (1) a fluoroelastomer which comprises (a) tetrafluoroethylene, (b) a perfluoro(C1-C5 alkyl vinyl ether) and/or a perfluoro(C3-C11 alkoxyalkyl vinyl ether) and (c) a cyano group-containing perfluorovinyl ether, (2) a hydrotalcite compound, (3) a crosslinking agent and (4) titanium dioxide (TiO2). The fluoroelastomer composition is capable of producing a fluoroelastomer molded product having excellent metal corrosion inhibition properties, and particularly, the fluoroelastomer composition is capable of producing a fluoroelastomer molded product which generates only small amount of a corrosive material when exposed to high temperature.
    Type: Application
    Filed: April 24, 2001
    Publication date: November 29, 2001
    Applicant: NIPPON MEKTRON, LTD.
    Inventor: Satoru Saito
  • Patent number: 6323270
    Abstract: A nanocomposite composition is disclosed which comprises clay and an effective amount of a benzoxazine monomer, oligomer, and/or polymer. In one embodiment, the presence of the benzoxazine monomer, oligomer, and/or polymer in the clay results in an at least about 5% increase in the spacing between the platelets of the clay. In another embodiment, the presence of the presence of the benzoxazine monomer, oligomer, and/or polymer in the clay results in at least about 5 wt. % of the clay being exfoliated. Also disclosed are a method for making (1) an intercalated nanocomposite clay composition which comprises clay and an effective amount of a benzoxazine monomer, oligomer, and/or polymer; (2) an exfoliated nanocomposite clay composition which comprises clay and an effective amount of a benzoxazine monomer, oligomer, and/or polymer; and (3) a method for making a nanocomposite clay composition that is both exfoliated and intercalated.
    Type: Grant
    Filed: November 16, 1999
    Date of Patent: November 27, 2001
    Assignee: Case Western Reserve University
    Inventor: Hatsuo Ishida
  • Patent number: 6294599
    Abstract: The present invention relates to a highly-rigid, flame-resistant polyamide composite material that is applicable to various uses such as in materials for electric and electronic parts, automobile parts, materials for house appliances, mechanical parts, and the like. The polyamide composite material according to the present invention is characterized in comprising (a) polyamide resin; (b) silicate complex comprising a layered silicate and triazine compound; (c) fibrous reinforcement; and (d) flame retarder. The polyamide composite material according to the present invention exhibits a high flame resistance, a superior performance with respect to its mechanical property, thermal property, dimensional stability, and reduced warp.
    Type: Grant
    Filed: April 6, 2000
    Date of Patent: September 25, 2001
    Assignee: Showa Denko K.K.
    Inventors: Hirofumi Inoue, Kenji Tamura, Tsuguo Ebata, Masayuki Noguchi
  • Publication number: 20010023272
    Abstract: Ink jet recording media have a substrate coated on one or both sides with two layers of coating material. The first layer is a relatively inexpensive ink vehicle absorptive coating comprised in major part of a pigment component that is comprised in major part of relatively inexpensive but highly absorbent calcined clay. The second layer is an ink receptive coating comprised of relatively expensive constituents providing excellent print qualities. Because the first layer provides the important ink vehicle absorbing function, the ink receptive coating can be applied at much lower coat weights than would otherwise be required. This produces recording media having equal or better print qualities than a heavier single layer of the ink receptive material, and does so at much lower cost. Methods of making and applying coatings having high levels of calcined clay are key factors in producing the media.
    Type: Application
    Filed: April 19, 2001
    Publication date: September 20, 2001
    Applicant: Stora Enso North America, Corp.
    Inventors: Gary G. Schiller, Leonard J. Schliesman
  • Patent number: 6288154
    Abstract: Abrasive jet stream polishing, wherein an abrasive is suspended in a flowable jet medium and projected at high velocity and pressure at a workpiece is provide, where the jet is projected at the surface to be polished at an oblique angle. The method is substantially improved by forming the medium of a polymer having reformable sacrificial chemical bonds which are preferentially broken under high shear conditions. Projecting the medium and suspended abrasive breaks the reformable sacrificial chemical bonds while polishing. The chemical bonds will reform, permitting recycling of the medium and abrasive for reuse in the method. The jet is effective at relatively low pressures of about 5 to about 80 MPa.
    Type: Grant
    Filed: October 18, 1999
    Date of Patent: September 11, 2001
    Assignee: Extrude Hone Corporation
    Inventor: Lawrence J. Rhoades
  • Patent number: 6284819
    Abstract: The present invention provides a recording medium comprising a substrate having a glossy coating thereon, wherein the glossy coating comprises a binder and first and second groups of particles, wherein: (a) the first group comprises metal oxide particles, wherein the metal oxide particles are aggregates of smaller, primary particles, (b) the mean diameter of the primary particles is less than about 100 nm, (c) the mean diameter of the aggregates is from about 100 nm to about 500 nm, (d) the mean diameter of the particles in the second group is less than about 50% of the mean diameter of the aggregates in the first group, and (e) the ratio of particles in the first group to particles in the second group is from about 0.1:1 to about 10:1 by weight. The glossy coating of the inventive recording medium has an excellent rate of liquid absorption, a relatively high liquid absorption capacity, excellent adhesiveness, and a non-brittle, crack-resistant, glossy surface.
    Type: Grant
    Filed: July 1, 1999
    Date of Patent: September 4, 2001
    Assignee: Cabot Corporation
    Inventors: Michael S. Darsillo, David J. Fluck, Rudiger Laufhutte
  • Patent number: 6277188
    Abstract: Automotive colorcoat paint compositions containing special effect pigment are disclosed. The special effect pigments include mica and the resultant paint composition has been especially useful in refinish paints.
    Type: Grant
    Filed: May 30, 1995
    Date of Patent: August 21, 2001
    Assignee: BASF Corporation
    Inventors: Keith L. Salter, Keith A. Starr, James L. Anderson, Daniel Guyomard
  • Patent number: 6248822
    Abstract: A method of making a composite product includes the steps of impregnating particles of an exfoliated vermiculite or a lignocellulosic material with an impregnating composition comprising a first thermosetting resin, an extending liquid for the thermosetting resin, if necessary a catalyst for the thermosetting resin and a coloring agent for the particles; removing the extending liquid; subjecting the impregnated particles to suitable conditions, generally of temperature and for pressure, to polymerize or cross-link the first thermosetting resin; coating the particles so produced with a binder composition comprising a second thermosetting resin and if necessary a catalyst for the second thermosetting resin; forming the particles into a desired shape, either in a mould or on a plate of a press; and subjecting the particles to suitable conditions to polymerize, condense or cross-link the second thermosetting resin to bind the particles together to form the composite product.
    Type: Grant
    Filed: December 28, 1998
    Date of Patent: June 19, 2001
    Assignee: Windsor Technologies Limited
    Inventor: Michael Windsor Symons
  • Patent number: 6232388
    Abstract: Intercalated layered materials prepared by co-intercalation of an onium ion and MXD6 nylon between the planar layers of a swellable layered material, such as a phyllosilicate, preferably a smectite clay. The spacing of adjacent layers of the layered materials is expanded at least about 3 Å, preferably at least about 5 Å, usually preferably to a d-spacing of about 15-20 Å, e.g., 18 Å with the onium ion spacing/coupling agent. The intercalation of the MXD6 nylon polymer then increases the spacing of adjacent layers an additional at least 3 Å, e.g., to at least about 20 Å, preferably about 25 Å to about 30 Å, generally about 28 Å.
    Type: Grant
    Filed: March 19, 1999
    Date of Patent: May 15, 2001
    Assignee: AMCOL International Corporation
    Inventors: Tie Lan, Hannah T. Cruz, Anthony S. Tomlin
  • Patent number: 6232389
    Abstract: Applications of barrier coating mixtures containing in a carrier liquid, (a) an elastomeric (preferably butyl-containing) polymer; (b) a dispersed exfoliated layered filler having an aspect ratio greater than 25; and (c) at least one surfactant, wherein the solids content of the mixture is less than 30% and the ratio of polymer (a) to filler (b) is between 20:1 and 1:1 include coated articles, which are elastomeric, e.g., sports balls and inflatable articles. Methods of manufacturing such coated products are also encompassed.
    Type: Grant
    Filed: June 10, 1999
    Date of Patent: May 15, 2001
    Assignees: InMat, LLC, Michelin Recherche et Technique S.A.
    Inventors: Carrie A. Feeney, Michele Farrell, Klaus Tannert, Harris A. Goldberg, Mengshi Lu, Michael D. Grah, William G. Steiner, Paul B. Winston
  • Patent number: 6228903
    Abstract: A phyllosilicate material is exfoliated by admixture of the phyllosilicate with water, and a solvent for a water-insoluble oligomer or polymer that is sorbed or electrostatically bonded to the inner surfaces of the phyllosilicate platelets after exfoliation of the phyllosilicate. Intercalation and exfoliation can be achieved via contact of the phyllosilicate with an organic solvent and water to electrostatically bond one or more polar moieties from the organic solvent to a metal cation on the platelet inner surfaces, so that after evaporation of the water used for intercalation of the organic solvent between phyllosilicate platelets, the platelets do not then collapse together, but remain exfoliated. After exfoliation of the phyllosilicate, the exfoliated platelets are contacted with a polymer/carrier composition that includes a water-insoluble polymer or water-insoluble oligomer, and a solvent for the water-insoluble polymer or oligomer.
    Type: Grant
    Filed: April 1, 1999
    Date of Patent: May 8, 2001
    Assignee: AMCOL International Corporation
    Inventors: Gary W. Beall, Fernando Serrano, Hannah Cruz
  • Patent number: 6225394
    Abstract: Nanocomposite layered materials prepared by co-intercalation of an onium ion, preferably an alkoxylated onium ion and an ethylene vinyl alcohol oligomer or polymer between the planar layers of a swellable layered material, such as a phyllosilicate, preferably a smectite clay. The spacing of adjacent layers of the layered materials is expanded at least about 3 Å, preferably at least about 5 Å, usually preferably to a d-spacing of about 15-20 Å, e.g., 18 Å with the alkoxylated onium ion spacing/coupling agent. The intercalation of the ethylene vinyl alcohol polymer then increases the spacing of adjacent layers an additional at least 2 Å, e.g., to at least about 20 Å, preferably about 25 Å to about 30 Å, generally about 28 Å. Improved O2 barrier properties are observed over a broad range of humidity conditions when intercalation is accomplished by both the solvent route and the direct compounding route.
    Type: Grant
    Filed: June 1, 1999
    Date of Patent: May 1, 2001
    Assignee: AMCOL International Corporation
    Inventors: Tie Lan, Anthony S. Tomlin, Vasiliki Psihogios
  • Patent number: 6172148
    Abstract: Flame-retardant thermoplastic molding materials contain A) from 5 to 97.7% by weight of a polyphenylene ether, B) from 1 to 93.7% by weight of vinylaromatic polymers, C) from 0 to 50% by weight of impact modifiers, D) from 0.3 to 20% by weight of sheet silicates which contain one or more nitrogen-containing compounds in amounts of from 0.1 to 50% by weight, based on the sheet silicates, E) from 1 to 20% by weight of a flameproofing agent and F) from 0 to 60% by weight of further additives.
    Type: Grant
    Filed: April 14, 1999
    Date of Patent: January 9, 2001
    Assignee: BASF Aktiengesellschaft
    Inventors: Martin Weber, Peter Horn, Walter Heckmann, Ulrich M{umlaut over (u)}ller, Axel Gottschalk
  • Patent number: 6156828
    Abstract: A gel-like emulsion containing natural rubber and crumb rubber from used vehicle tires which may be added to an asphalt paving emulsion at ambient temperature for chip coating, slurry sealing, microsurfacing, soil stabilization or pavement recycling.
    Type: Grant
    Filed: October 26, 1998
    Date of Patent: December 5, 2000
    Inventor: Steve R. Wickett
  • Patent number: 6136908
    Abstract: A method for producing a thermoplastic nanocomposite is disclosed. The method comprises the steps of: (a) contacting a swellable layered silicate with a polymerizable aminoaryl lactam monomer to achieve intercalation of said lactam monomer between adjacent layers of said layered silicate; and (b) admixing the intercalated layered silicate with a thermoplastic polymer, and heating the admixture to provide for flow of said polymer and polymerization of the intercalated lactam monomer to cause exfoliation of said layered silicate, thereby forming a thermoplastic nanocomposite having exfoliated silicate layers dispersed in a thermoplastic polymer matrix.
    Type: Grant
    Filed: June 17, 1999
    Date of Patent: October 24, 2000
    Assignee: Industrial Technology Research Institute
    Inventors: Chien-Shiun Liao, Wen-Faa Kuo, Li Kuei Lin
  • Patent number: 6136909
    Abstract: A method for producing a conductive polyaniline/layered inorganic nanocomposite having a conductivity greater than 10.sup.-1 S/cm is disclosed. The method comprises the steps of: (a) forming a reaction mixture comprising water, an aniline monomer, a protonic acid, an oxidizing agent, and a layered silicate which has been subjected to an acid treatment or is intercalated with polyethylene glycol; and (b) subjecting said reaction mixture to oxidative polymerization to form a conductive polymeric nanocomposite having said layered silicate dispersed in a polymeric matrix of polyaniline.
    Type: Grant
    Filed: June 17, 1999
    Date of Patent: October 24, 2000
    Assignee: Industrial Technology Research Institute
    Inventors: Chien-Shiun Liao, Li Kuei Lin
  • Patent number: 6107387
    Abstract: Provided are acidified aqueous stable dispersions of an exfoliated silicate derived from a silicate having a layer lattice structure in which the silicate layer units have a thickness of 5 to 25 Angstroms, wherein the exchange capacity ranges from 30 to 200 millequivalents per gram of silicate having a layer lattice structure, and wherein the silicate materials have been exfoliated with a cationic group-containing polymer or polymer having functional groups which can be post-reacted to form cationic groups. These silicate dispersions are useful in coating compositions, particularly in electrodepositable coating compositions, where they impart improved crater control.
    Type: Grant
    Filed: February 22, 1999
    Date of Patent: August 22, 2000
    Assignees: PPG Industries Ohio, Inc., Amcol International Corp.
    Inventors: Alan J. Kaylo, Richard F. Karabin, Tie Lan, Michael G. Sandala
  • Patent number: 6103805
    Abstract: A polyamide resin composition comprising (A) a reinforced polyamide resin which comprises 100 parts by weight of a nylon 6 homopolymer or copolymer and 1 to 20 parts by weight of a layered silicate uniformly dispersed in the polymer on the molecular level and (B) a non-reinforced polyamide resin, a test specimen of said composition having a tensile weld strength of 45 MPa or higher and a flexural modulus of 4 GPa or higher.
    Type: Grant
    Filed: June 22, 1998
    Date of Patent: August 15, 2000
    Assignee: Unitika Ltd.
    Inventors: Kazushige Kojima, Tsuneo Tamura, Koji Fujimoto, Sachiko Kokuryo
  • Patent number: 6096373
    Abstract: A sprayable composition and a method of protecting material with the composition is disclosed. The composition comprises a bulking/setting material, a water soluble polymer and water to provide a cover layer which, after spraying, is tough, flexible and water-repellent. Other materials such as clay, fibrous material, a foam producing agent and a hardening retarder can be included in the composition. The composition is effective as a cover layer over material such as soil, refuse at a dump site, stockpiled material, a temporary cover for remediation sites, or tire piles.
    Type: Grant
    Filed: July 23, 1996
    Date of Patent: August 1, 2000
    Inventors: Thomas J. Nachtman, John H. Hull, Patrick O'Shea
  • Patent number: 6093764
    Abstract: A method of dispersing mineral substances in aqueous media, comprising combining:water,at least one mineral substance, anda copolymer which comprises the following monomers in polymerized form:(a) at least one ethylenically unsaturated monomer having at least one carboxyl function,(b) optionally, at least one ethylenically unsaturated monomer having at least one sulphonyl function and/or phosphoryl function,(c) optionally, at least one ethylenically unsaturated monomer having no carboxyl function, and(d) at least one ethylenically unsaturated oxyalkylated monomer terminating with a hydrophobic chain represented by a specified formula,where the sum of the weight percent of (a), (b), (c) and (d) in the copolymer is 100%, and the copolymer has a specific viscosity of at most 50. Mineral substances may be effectively dispersed according to the invention, regardless of the surface properties thereof.
    Type: Grant
    Filed: July 20, 1998
    Date of Patent: July 25, 2000
    Assignee: Coatex S.A.
    Inventors: Jean-Bernard Egraz, Christian Jacquemet, Jacques Mongoin, Jean-Marc Suau
  • Patent number: 6087016
    Abstract: Barrier coating mixtures contain in a carrier liquid, (a) an elastomeric (preferably butyl-containing) polymer; (b) a dispersed exfoliated layered filler having an aspect ratio greater than 25; and (c) at least one surfactant, wherein the solids content of the mixture is less than 30% and the ratio of polymer (a) to filler (b) is between 20:1 and 1:1. Coated articles, which are rigid or flexible and elastomeric, and free-standing films and membranes, which are flexible and elastomeric, are produced using the barrier coating mixtures.
    Type: Grant
    Filed: June 8, 1998
    Date of Patent: July 11, 2000
    Assignees: InMat, LLC, Michelin Recherche et Technique S.A.
    Inventors: Carrie A. Feeney, Michele Farrell, Klaus Tannert, Harris A. Goldberg, Mengshi Lu, Michael D. Grah, William G. Steiner, Paul B. Winston
  • Patent number: 6084019
    Abstract: The present invention relates to polyester-platelet particle composite compositions comprising about 0.01 to about 25 weight percent platelet particles dispersed in at least one polyester wherein said composition has an I.V. of greater than about 0.55 dl/g, low shear melt viscosity greater than about 30,000 poise and a gas permeability which is at least 10% lower than that of unmodified polyester and processes for producing same.
    Type: Grant
    Filed: December 22, 1997
    Date of Patent: July 4, 2000
    Assignee: Eastman Chemical Corporation
    Inventors: James Christopher Matayabas, Jr., Sam Richard Turner, Bobby Jones Sublett, Gary Wayne Connell, John Walker Gilmer, Robert Boyd Barbee
  • Patent number: 6075082
    Abstract: A method for binding ceramic materials in aqueous media is disclosed. The method utilizes water-soluble cross-linked polyamides prepared by condensation polymerization for binding various classes of ceramic materials.
    Type: Grant
    Filed: September 29, 1998
    Date of Patent: June 13, 2000
    Assignee: Nalco Chemical Company
    Inventors: David P. Workman, Kristy M. Bailey, Kevin J. Moeggenborg
  • Patent number: 6057398
    Abstract: An aqueous suspension, comprising:(1) water,(2) at least one mineral substance, and(3) a copolymer which comprises the following monomers in polymerized form:(a) at least one ethylenically unsaturated monomer having at least one carboxyl function,(b) optionally, at least one ethylenically unsaturated monomer having at least one sulphonyl function or phosphoryl function,(c) optionally, at least one ethylenically unsaturated monomer having no carboxyl function,(d) at least one ethylenically unsaturated oxyalkylated monomer terminating with a specified hydrophobic group,where the copolymer has a specific viscosity at most equal to 50. The suspension is useful in, for example, paper manufacturing and in the manufacture of coating colors for paper.
    Type: Grant
    Filed: July 20, 1998
    Date of Patent: May 2, 2000
    Assignee: Pluess-Staufer AG
    Inventor: Rene Vinzenz Blum
  • Patent number: 6057396
    Abstract: The present invention discloses intercalates formed by contacting a layered material, e.g., a phyllosilicate, with an intercalant monomer surface modifier including an alkyl radical having at least 6 carbon atoms and a polymerizable monomer, oligomer or polymer. The intercalant monomer surface modifier converts the interlayer region of the layered materials from hydrophilic to hydrophobic, therefore, polymerizable monomers, oligomers or polymers can be easily intercalated into the interlayer spacing. The co-presence of the intercalant monomer surface modifier and polymerizable monomer, oligomer or polymer provide an environment for more polymerizable monomers, oligomers or polymers to be intercalated into the interlayer spacing and the intercalates are readily exfoliated into polymer matrices to form nanocomposites. The nanocomposites (e.g., epoxy-clay) prepared from the intercalates demonstrated enhanced mechanical, thermal and chemical resistance compared with pristine polymer matrices.
    Type: Grant
    Filed: August 11, 1997
    Date of Patent: May 2, 2000
    Assignee: AMCOL International Corporation
    Inventors: Tie Lan, Gary W. Beal, Semeon Tsipursky
  • Patent number: 6005031
    Abstract: Aqueous multiphase dispersions for multicolor coatings are produced by a process essentially comprising the steps of:providing one or more emulsion paints;adding at least one linear colloid capable of being insolubilised by borate ions and at least one hydrophilic inorganic clay to said paints to form base paints;providing an aqueous medium containing at least one hydrophilic inorganic clay;adding said base paints into said aqueous medium;adding borate ions to said aqueous medium;adding at least one emulsified binder to said medium;each of the emulsion paints having a different color.It is preferred to use galactomannoglycans as colloid (most preferably guar gum) and synthetic clays (most preferably of the smectite or hectorite types).
    Type: Grant
    Filed: August 17, 1998
    Date of Patent: December 21, 1999
    Assignee: Sigma Coatings, B.V.
    Inventors: Sylvia Bremer-Masseus, Cornelis van der Kolk, Marcel Weber, Johannes van Schie
  • Patent number: 5981625
    Abstract: The present invention provides a newspaper printing ink that has rub off resistance; is fast drying on the paper; does not mist or dry on the press; offers excellent printability, high color strength, good water balance, and sharp half tone reproduction; and is relatively inexpensive. The present invention provides an ink concentrate suitable for preparing the printing ink, the ink concentrate comprising a colorant having a particle size of from about 0.01 .mu.m to about 25 .mu.m, a hydrocarbon resin, and a binder resin selected from the group consisting of a polyamide-oil polymer and a polyester-oil polymer. The present invention further provides a printing ink comprising a colorant having a particle size of from about 0.01 .mu.m to about 25 .mu.m, a vegetable oil, a polyamide-oil polymer, and a styrene-acrylic copolymer. The present invention further provides a printing ink comprising a naphthenic oil, a colorant having a particle size of from about 0.01 .mu.m to about 25 .mu.
    Type: Grant
    Filed: May 2, 1996
    Date of Patent: November 9, 1999
    Assignee: Videojet Systems International, Inc.
    Inventors: Wan Kang Zou, Xiaomang Wang, Qiao Qiao Dong
  • Patent number: 5972263
    Abstract: A method of improving the strength and/or plasticity of a clay composition comprising a kandite clay and an organic additive comprising at least one water soluble compound having a plurality of basic groups wherein the organic additive is present in an amount of from about 0.05% by weight to about 0.5% by weight based on the dry weight of the kandite clay present, which method comprises treating the kandite clay by adding thereto a monovalent ion activated smectite clay or a monovalent ion activating agent for a smectite clay or both whereby the amount of monovalent ion activated non-calcined smectite clay present in the clay composition is adjusted to be in the range from about 1% by weight to about 5% by weight based upon the dry weight of the kandite clay present.
    Type: Grant
    Filed: December 10, 1997
    Date of Patent: October 26, 1999
    Assignee: ECC International Ltd.
    Inventors: Howard Goodman, Christopher Stirling Hogg, Richard Gerrard Shaw Stewart
  • Patent number: 5948845
    Abstract: An organic solvent-based paint is provided which has, among other things, a perlitic component. The paint resists thermal loading and loss. A series addition of components provides the paint efficiently. The paint is useful for many substrates, including metals.
    Type: Grant
    Filed: February 2, 1998
    Date of Patent: September 7, 1999
    Assignee: P.S.A.M.S., Inc.
    Inventors: John W. Good, Rufus H. Kerry
  • Patent number: 5935655
    Abstract: A combination of (A) a nitrogen containing water soluble polymer, (B) a water insoluble film forming polymer, and (C) gas filled, polymer walled microballoons provides a superior thermally releasable coating that (i) can be conveniently and reliably coated from a water based solution and dispersion onto surfaces to be protected against painting, (ii) is reliably stable at ambient temperatures, (iii) even after being coated with many times its own thickness of accumulated paint particles, rapidly disintegrates, along with the accumulated paint coating formed on it, upon contact with hot water, into particles of a size that readily escapes from standard paint booth grate structures, (iv) detackifies any paint particles that escape during distintegration of the combined thermally releasable coating and paint residues accumulated thereon, and (v) disintegrates into particles that float on water, so that they can be readily removed from the grates by immersing the latter in hot water, allowing a few minutes for th
    Type: Grant
    Filed: January 26, 1996
    Date of Patent: August 10, 1999
    Assignee: Henkel Corporation
    Inventor: Scott J. Beleck
  • Patent number: 5932634
    Abstract: A method of producing a resin composition containing an inorganic filler is disclosed, wherein organic cations having a steric hindrance structure are brought into contact with a layered mineral with an equivalent area per unit charge on the layer surface of 40-150 .ANG..sup.2 /charge, then brought into contact with a thermoplastic resin having a solubility parameter of at least 9.5 ?cal/cm.sup.3 !.sup.1/2, so as to disperse the layered mineral inside the resin at the molecular level. The resin compositions obtained by this production method have excellent rigidity, heat resistance and impact resistance, and are suitable for use in fields such as, for example, automobiles, household electronic parts, construction materials and industrial materials.
    Type: Grant
    Filed: May 23, 1997
    Date of Patent: August 3, 1999
    Assignee: Showa Denko K.K.
    Inventors: Teruo Hosokawa, Hirofumi Inoue, Yoshihiro Moteki
  • Patent number: 5925308
    Abstract: A method of producing a formable mixture involves combining a powder material, and a plurality of gel-forming polymers, wherein at least one gel-forming polymer is a proton donor, and at least one gel forming polymer is a proton acceptor. A method of making a monolithic structure involves producing a formable mixture of powder material which can be ceramic, metal, glass, glass ceramic, molecular sieve and combinations thereof, a plurality of gel-forming polymers as described above, extruding the mixture to form a green monolithic structure, and drying and firing the green structure.
    Type: Grant
    Filed: July 28, 1997
    Date of Patent: July 20, 1999
    Assignee: Corning Incorporated
    Inventors: Edward J. Fewkes, Frances M. Smith, Lung-Ming Wu
  • Patent number: 5910529
    Abstract: A water based gel guide coat composition and a method of using is provided. The composition comprises:aqueous dispersion(s) comprising a binder(s), aqueous emulsion(s) comprising a binder(s), and/or combinations thereof, having a minimum film forming temperature of 22.degree. C. or less;thickening agent of a type and in a sufficient amount to provide the composition with Bingham plastic properties upon shear;optionally additional water;water dispersible inorganic pigment(s); andoptional pH adjusting agent;the composition pH being about 6 to about 9.
    Type: Grant
    Filed: December 20, 1996
    Date of Patent: June 8, 1999
    Assignee: Minnesota Mining & Manufacturing Co.
    Inventor: Mark R. Wollner
  • Patent number: 5908889
    Abstract: A method for binding ceramic materials in aqueous media is disclose. The method utilizes water-soluble polyamides prepared by condensation polymerization for binding various classes of ceramic materials.
    Type: Grant
    Filed: March 16, 1998
    Date of Patent: June 1, 1999
    Assignee: Nalco Chemical Company
    Inventors: Kristy M. Bailey, Kevin J. Moeggenborg
  • Patent number: 5883173
    Abstract: The present invention relates to a latex comprising water and a layered material intercalated with a polymer. The invention also relates to a nanocomposite material comprising a layered material intercalated with a polymer. The latex can be produced by forming a dispersion of layered material in water, adding surfactant, polymerizable monomer or monomers, and a polymerization initiator to the mixture and then polymerizing the monomer to form a latex. The latex can also be formed from preformed polymers. Composite materials formed from latexes produced by either method have improved mechanical properties and reduced air permeability.
    Type: Grant
    Filed: December 20, 1996
    Date of Patent: March 16, 1999
    Assignee: Exxon Research and Engineering Company
    Inventors: Chester W. Elspass, Dennis G. Peiffer, Edward Nathan Kresge, Dong-Tsai Hsieh, James Joseph Chludzinski, Keng S. Liang
  • Patent number: 5880197
    Abstract: Intercalates formed by contacting a layered material, e.g., a phyllosilicate, with an intercalant monomer amine and/or amide to sorb or intercalate the intercalant monomer between adjacent platelets of the layered material. Sufficient intercalant monomer is sorbed between adjacent platelets to expand the adjacent platelets to a spacing of at least about 5 .ANG. (as measured after water removal to a maximum of 5% by weight water), up to about 100 .ANG. and preferably in the range of about 10-45 .ANG., so that the intercalate easily can be exfoliated into individual platelets. The intercalated complex can be combined with an organic liquid into a viscous carrier material, for delivery of the carrier material, or for delivery of an active compound; or the intercalated complex can be combined with a matrix polymer to form a strong, filled polymer matrix. Alternatively, the intercalated complex can be exfoliated prior to combination with the organic liquid or the matrix polymer.
    Type: Grant
    Filed: December 22, 1995
    Date of Patent: March 9, 1999
    Assignee: AMCOL International Corporation
    Inventors: Gary W. Beall, Semeon Tsipursky, Anatoliy Sorokin, Anatoliy Goldman
  • Patent number: 5863975
    Abstract: Water retention additives for aqueous construction systems including joint compounds are described which are the reaction product of monomers comprising carboxylic acid monomers, nonionic vinyl monomers and specific surfactant monomers. Processes for making such polymers are described as well as the use of aqueous construction systems using the polymers. The polymers are useful in joint compounds and a broad range of similar construction systems as cellulosic replacements.
    Type: Grant
    Filed: February 6, 1997
    Date of Patent: January 26, 1999
    Assignee: Rheox Inc.
    Inventors: Fred Whitton, Joseph Doolan
  • Patent number: 5856398
    Abstract: There is provided an aqueous pigment dispersion for a light-shielding paper comprising a pigment component, an aqueous resin and water, wherein the pigment component contains 2 to 50% by weight of graphite in which at least 80% of the total number of particles thereof has the maximum diameter of 1 to 30 .mu.m, 2 to 60% by weight of a colored pigment, and 10 to 90% by weight of a white pigment, and each specific gravity of the colored pigment and the white pigment is 2.0 to 6.0 g/cm.sup.3. The pigment dispersion of the present invention can provide light-shielding properties by rendering coating onto a paper base material and also can provide a light-shielding paper which facilitates recycling and has a high quality when recycling of waste paper is effected.
    Type: Grant
    Filed: March 31, 1997
    Date of Patent: January 5, 1999
    Assignee: Toyo Ink Manufacturing Co., Ltd.
    Inventors: Tetsuro Oizumi, Kosaku Tsuji, Hisao Tanaka, Tsutomu Fujigamori
  • Patent number: 5853900
    Abstract: Paper coating slips contain an emulsion copolymer, comprising overallfrom 0 to 60% by weight of a vinylaromatic,from 40 to 95% by weight of a C.sub.1 -C.sub.10 -alkyl (meth)acrylate,from 5 to 40% by weight of an alkenylnitrile,from 0 to 10% by weight of an ethylenically unsaturated acid andfrom 0 to 20% by weight of further monomersas a binder, wherein the emulsion copolymer is a mixture of at least two polymers or an emulsion copolymer comprising at least two stages, one polymer or one stage whose content in the emulsion copolymer is from 10 to 75% by weight containing at least 90% by weight of the total amount of alkenylnitrile (alkenylnitrile-rich polymer or stage).
    Type: Grant
    Filed: March 27, 1997
    Date of Patent: December 29, 1998
    Assignee: BASF Aktiengesellschaft
    Inventors: Bernhard Schuler, Elmar Schwarzenbach, Jurgen Hartmann, Chung-Ji Tschang