With Water Nrm Patents (Class 524/446)
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Patent number: 6399690Abstract: 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: GrantFiled: March 7, 2001Date of Patent: June 4, 2002Assignee: AMCOL International CorporationInventors: Tie Lan, Erin K. Westphal, Vasiliki Psihogios, Ying Liang
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Patent number: 6391449Abstract: 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: GrantFiled: December 1, 1999Date of Patent: May 21, 2002Assignee: AMCOL International CorporationInventors: Tie Lan, Vasiliki Psihogios, Robert Boyd Barbee, James Christopher Matayabas, Jr., John Walker Gilmer
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Patent number: 6387996Abstract: 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: GrantFiled: December 1, 1999Date of Patent: May 14, 2002Assignee: AMCOL International CorporationInventors: Tie Lan, John Walker Gilmer, James Christopher Matayabas, Jr., Robert Boyd Barbee
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Publication number: 20020055579Abstract: 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 solType: ApplicationFiled: July 30, 2001Publication date: May 9, 2002Applicant: Kuraray Co., Ltd.Inventors: Tatsuya Oshita, Goki Uehara, Nobuhisa Senda, Yoshiki Takeda, Yukiatsu Komiya, Syuichi Kanao, Shigeki Takada, Naoki Kawakami, Kanenori Ito
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Patent number: 6375866Abstract: 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: GrantFiled: January 7, 2000Date of Patent: April 23, 2002Assignee: Enthone, Inc.Inventors: Vincent Paneccasio, Jr., Mark P. Chasseā²
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Patent number: 6350805Abstract: 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: GrantFiled: June 12, 2000Date of Patent: February 26, 2002Assignee: DSM N.V.Inventors: Roland A. Korbee, Albert A. Van Geenen
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Publication number: 20020022678Abstract: 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: ApplicationFiled: December 1, 1999Publication date: February 21, 2002Inventors: TIE LAN, VASILIKI PSHIHOGIOS, ROBERT BOYD BARBEE, JAMES CHRISTOPHER MATAYABAS, JOHN WALKER GILMER
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Publication number: 20020004550Abstract: A stable aqueous liquid polymer composition, which comprises:Type: ApplicationFiled: July 9, 2001Publication date: January 10, 2002Applicant: COATEX S.A.Inventors: Jean-Bernard Egraz, Georges Ravet, Jean-Marc Suau, Isabelle Capra-Ogier, Henri Grondin
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Patent number: 6335395Abstract: 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: GrantFiled: December 1, 1999Date of Patent: January 1, 2002Assignee: Eastman Kodak CompanyInventors: Sridhar Sadasivan, Suresh Sunderrajan, Michelle M. Oakland, Patrick J. Whittaker, Elwood C. Samons, Craig T. Mollon
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Patent number: 6329449Abstract: 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: GrantFiled: September 22, 1999Date of Patent: December 11, 2001Assignee: PKU Pulverkautschuk Union GmbHInventors: Udo Gorl, Reinhard Stober, Hartmut Lauer, Uwe Ernst
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Publication number: 20010049413Abstract: 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: ApplicationFiled: May 25, 2001Publication date: December 6, 2001Applicant: Kawamura Institute of Chemical ResearchInventor: Kazutoshi Haraguchi
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Publication number: 20010047048Abstract: 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: ApplicationFiled: April 24, 2001Publication date: November 29, 2001Applicant: NIPPON MEKTRON, LTD.Inventor: Satoru Saito
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Patent number: 6323270Abstract: 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: GrantFiled: November 16, 1999Date of Patent: November 27, 2001Assignee: Case Western Reserve UniversityInventor: Hatsuo Ishida
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Patent number: 6294599Abstract: 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: GrantFiled: April 6, 2000Date of Patent: September 25, 2001Assignee: Showa Denko K.K.Inventors: Hirofumi Inoue, Kenji Tamura, Tsuguo Ebata, Masayuki Noguchi
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Publication number: 20010023272Abstract: 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: ApplicationFiled: April 19, 2001Publication date: September 20, 2001Applicant: Stora Enso North America, Corp.Inventors: Gary G. Schiller, Leonard J. Schliesman
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Patent number: 6288154Abstract: 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: GrantFiled: October 18, 1999Date of Patent: September 11, 2001Assignee: Extrude Hone CorporationInventor: Lawrence J. Rhoades
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Patent number: 6284819Abstract: 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: GrantFiled: July 1, 1999Date of Patent: September 4, 2001Assignee: Cabot CorporationInventors: Michael S. Darsillo, David J. Fluck, Rudiger Laufhutte
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Patent number: 6277188Abstract: 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: GrantFiled: May 30, 1995Date of Patent: August 21, 2001Assignee: BASF CorporationInventors: Keith L. Salter, Keith A. Starr, James L. Anderson, Daniel Guyomard
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Patent number: 6248822Abstract: 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: GrantFiled: December 28, 1998Date of Patent: June 19, 2001Assignee: Windsor Technologies LimitedInventor: Michael Windsor Symons
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Patent number: 6232388Abstract: 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: GrantFiled: March 19, 1999Date of Patent: May 15, 2001Assignee: AMCOL International CorporationInventors: Tie Lan, Hannah T. Cruz, Anthony S. Tomlin
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Patent number: 6232389Abstract: 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: GrantFiled: June 10, 1999Date of Patent: May 15, 2001Assignees: 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
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Patent number: 6228903Abstract: 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: GrantFiled: April 1, 1999Date of Patent: May 8, 2001Assignee: AMCOL International CorporationInventors: Gary W. Beall, Fernando Serrano, Hannah Cruz
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Patent number: 6225394Abstract: 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: GrantFiled: June 1, 1999Date of Patent: May 1, 2001Assignee: AMCOL International CorporationInventors: Tie Lan, Anthony S. Tomlin, Vasiliki Psihogios
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Patent number: 6172148Abstract: 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: GrantFiled: April 14, 1999Date of Patent: January 9, 2001Assignee: BASF AktiengesellschaftInventors: Martin Weber, Peter Horn, Walter Heckmann, Ulrich M{umlaut over (u)}ller, Axel Gottschalk
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Patent number: 6156828Abstract: 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: GrantFiled: October 26, 1998Date of Patent: December 5, 2000Inventor: Steve R. Wickett
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Patent number: 6136908Abstract: 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: GrantFiled: June 17, 1999Date of Patent: October 24, 2000Assignee: Industrial Technology Research InstituteInventors: Chien-Shiun Liao, Wen-Faa Kuo, Li Kuei Lin
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Patent number: 6136909Abstract: 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: GrantFiled: June 17, 1999Date of Patent: October 24, 2000Assignee: Industrial Technology Research InstituteInventors: Chien-Shiun Liao, Li Kuei Lin
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Patent number: 6107387Abstract: 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: GrantFiled: February 22, 1999Date of Patent: August 22, 2000Assignees: PPG Industries Ohio, Inc., Amcol International Corp.Inventors: Alan J. Kaylo, Richard F. Karabin, Tie Lan, Michael G. Sandala
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Patent number: 6103805Abstract: 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: GrantFiled: June 22, 1998Date of Patent: August 15, 2000Assignee: Unitika Ltd.Inventors: Kazushige Kojima, Tsuneo Tamura, Koji Fujimoto, Sachiko Kokuryo
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Patent number: 6096373Abstract: 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: GrantFiled: July 23, 1996Date of Patent: August 1, 2000Inventors: Thomas J. Nachtman, John H. Hull, Patrick O'Shea
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Patent number: 6093764Abstract: 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: GrantFiled: July 20, 1998Date of Patent: July 25, 2000Assignee: Coatex S.A.Inventors: Jean-Bernard Egraz, Christian Jacquemet, Jacques Mongoin, Jean-Marc Suau
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Patent number: 6087016Abstract: 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: GrantFiled: June 8, 1998Date of Patent: July 11, 2000Assignees: 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
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Patent number: 6084019Abstract: 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: GrantFiled: December 22, 1997Date of Patent: July 4, 2000Assignee: Eastman Chemical CorporationInventors: James Christopher Matayabas, Jr., Sam Richard Turner, Bobby Jones Sublett, Gary Wayne Connell, John Walker Gilmer, Robert Boyd Barbee
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Patent number: 6075082Abstract: 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: GrantFiled: September 29, 1998Date of Patent: June 13, 2000Assignee: Nalco Chemical CompanyInventors: David P. Workman, Kristy M. Bailey, Kevin J. Moeggenborg
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Patent number: 6057398Abstract: 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: GrantFiled: July 20, 1998Date of Patent: May 2, 2000Assignee: Pluess-Staufer AGInventor: Rene Vinzenz Blum
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Patent number: 6057396Abstract: 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: GrantFiled: August 11, 1997Date of Patent: May 2, 2000Assignee: AMCOL International CorporationInventors: Tie Lan, Gary W. Beal, Semeon Tsipursky
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Patent number: 6005031Abstract: 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: GrantFiled: August 17, 1998Date of Patent: December 21, 1999Assignee: Sigma Coatings, B.V.Inventors: Sylvia Bremer-Masseus, Cornelis van der Kolk, Marcel Weber, Johannes van Schie
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Patent number: 5981625Abstract: 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: GrantFiled: May 2, 1996Date of Patent: November 9, 1999Assignee: Videojet Systems International, Inc.Inventors: Wan Kang Zou, Xiaomang Wang, Qiao Qiao Dong
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Patent number: 5972263Abstract: 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: GrantFiled: December 10, 1997Date of Patent: October 26, 1999Assignee: ECC International Ltd.Inventors: Howard Goodman, Christopher Stirling Hogg, Richard Gerrard Shaw Stewart
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Patent number: 5948845Abstract: 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: GrantFiled: February 2, 1998Date of Patent: September 7, 1999Assignee: P.S.A.M.S., Inc.Inventors: John W. Good, Rufus H. Kerry
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Patent number: 5935655Abstract: 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 thType: GrantFiled: January 26, 1996Date of Patent: August 10, 1999Assignee: Henkel CorporationInventor: Scott J. Beleck
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Patent number: 5932634Abstract: 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: GrantFiled: May 23, 1997Date of Patent: August 3, 1999Assignee: Showa Denko K.K.Inventors: Teruo Hosokawa, Hirofumi Inoue, Yoshihiro Moteki
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Patent number: 5925308Abstract: 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: GrantFiled: July 28, 1997Date of Patent: July 20, 1999Assignee: Corning IncorporatedInventors: Edward J. Fewkes, Frances M. Smith, Lung-Ming Wu
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Patent number: 5910529Abstract: 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: GrantFiled: December 20, 1996Date of Patent: June 8, 1999Assignee: Minnesota Mining & Manufacturing Co.Inventor: Mark R. Wollner
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Patent number: 5908889Abstract: 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: GrantFiled: March 16, 1998Date of Patent: June 1, 1999Assignee: Nalco Chemical CompanyInventors: Kristy M. Bailey, Kevin J. Moeggenborg
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Patent number: 5883173Abstract: 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: GrantFiled: December 20, 1996Date of Patent: March 16, 1999Assignee: Exxon Research and Engineering CompanyInventors: Chester W. Elspass, Dennis G. Peiffer, Edward Nathan Kresge, Dong-Tsai Hsieh, James Joseph Chludzinski, Keng S. Liang
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Patent number: 5880197Abstract: 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: GrantFiled: December 22, 1995Date of Patent: March 9, 1999Assignee: AMCOL International CorporationInventors: Gary W. Beall, Semeon Tsipursky, Anatoliy Sorokin, Anatoliy Goldman
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Patent number: 5863975Abstract: 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: GrantFiled: February 6, 1997Date of Patent: January 26, 1999Assignee: Rheox Inc.Inventors: Fred Whitton, Joseph Doolan
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Patent number: 5856398Abstract: 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: GrantFiled: March 31, 1997Date of Patent: January 5, 1999Assignee: Toyo Ink Manufacturing Co., Ltd.Inventors: Tetsuro Oizumi, Kosaku Tsuji, Hisao Tanaka, Tsutomu Fujigamori
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Patent number: 5853900Abstract: 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: GrantFiled: March 27, 1997Date of Patent: December 29, 1998Assignee: BASF AktiengesellschaftInventors: Bernhard Schuler, Elmar Schwarzenbach, Jurgen Hartmann, Chung-Ji Tschang