Group Iia Metal Dnrm (i.e., Be, Mg, Ca, Sr, Ba) Patents (Class 524/436)
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Patent number: 7169834Abstract: A composition containing transparent thermoplastic polymers and a surface modified oxide particles is disclosed. The size of the particles is less than 200 nm and the composition is suitable for the preparation of products wherever diathermancy is undesirable.Type: GrantFiled: January 28, 2001Date of Patent: January 30, 2007Assignee: Leibniz-Institut Fuer Neue Materialien Gemeinnuetzige GmbHInventors: Martin Döbler, Werner Hoheisel, Helmut Schmidt, Ralph Nonninger, Martin Schichtel, Martin Jost
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Patent number: 7163977Abstract: Methods to decrease aldehyde content of a polymer are provided. An effective amount of an additive that contains a P—H functionality is incorporated into the polymer in the presence of an acidic of basic catalyst compositions are also provided.Type: GrantFiled: May 13, 2005Date of Patent: January 16, 2007Assignee: Plastic Technologies, Inc.Inventor: Mark Rule
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Patent number: 7157140Abstract: Malleable thermoplastic composite materials are provided. More specifically, malleable thermoplastic composite materials made from thermoplastic polymers having low molecular weight and particulate material are provided for malleable composites having high compression set. Alternatively, malleable composite blends of two or more thermoplastic polymers are provided wherein at least one thermoplastic polymer has a low molecular weight. Further, the malleable thermoplastic composites may be blended with high specific gravity particulate material to form high specific gravity composites that exhibit malleable characteristics.Type: GrantFiled: March 3, 2004Date of Patent: January 2, 2007Assignee: RTP CompanyInventor: Karl M. Hoppe
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Patent number: 7157515Abstract: A rubber composition for magnetic encoder, which comprises ethylene-methyl acrylate copolymeric rubber, magnetic powder and an amine-based vulcanizing agent, can give molding products with distinguished heat resistance, water resistance and saline water resistance and can be used as effective vulcanization molding materials for magnetic encoder, particularly in use for wheel speed sensor. A higher mixing proportion of the magnetic powder can be added to the rubber component, so the resulting magnetic encoder can have a distinguished magnetic force.Type: GrantFiled: September 24, 2003Date of Patent: January 2, 2007Assignee: Nok CorporationInventors: Katsumi Abe, Hironori Nishina
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Patent number: 7153919Abstract: An initiator is presented for anionically polymerizing monomers, to provide a functional head group on the polymer. A polymer having a functional head group derived from a sulfur containing anionic initiator, and optionally as additional functional group resulting from the use of a functional terminating reagent, coupling agent or linking agent is also provided. A method is presented for anionically polymerizing monomers comprising the step of polymerizing the monomers with a sulfur containing anionic initiator to provide a functional head group on the polymer. An elastomeric compound, comprising a functional polymer and filler is also described. Also provided is a tire having decreased rolling resistance resulting from a tire component containing a vulcanizable elastomeric compound.Type: GrantFiled: October 30, 2003Date of Patent: December 26, 2006Assignee: Bridgestone CorporationInventors: Terrence E. Hogan, William Hergenrother, Yuan-Yong Yan, David Lawson
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Patent number: 7150879Abstract: The present invention provides a novel process for producing a calcium phosphate cement or filler which hardens in a temperature dependent fashion in association with an endothermic reaction. In the reaction a limited amount of water is mixed with dry calcium phosphate precursors to produce a hydrated precursor paste. Hardening of the paste occurs rapidly at body temperature an is accompanied by the conversion of one or more of the reactants to poorly crystalline apatitic calcium phosphate. The hardened cements, fillers, growth matrices, orthopedic and delivery devices of the invention are rapidly resorbable and stimulate hard tissue growth and healing.Type: GrantFiled: May 11, 2000Date of Patent: December 19, 2006Assignee: Etex CorporationInventors: Dosuk D. Lee, Christian Rey, Maria Aiolova, Aliassghar Tofighi
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Patent number: 7148281Abstract: A method of preparing an electrically conductive polymer blend, and an electrically conductive polymer blend includes steps of selecting at least two polymeric materials that are substantially immiscible together, mixing the polymeric materials into a blend so that at least one of the polymeric materials forms a continuous three-dimensional phase through the entire blend, and mixing an electrically conductive filler into the blend. The difference in surface tension between the polymeric material forming the continuous three-dimensional phase and the other polymeric materials forming the blend is at least 2 mN/m.Type: GrantFiled: October 6, 2003Date of Patent: December 12, 2006Assignee: Premix OyInventors: Taisto Vilkman, Jenni Mustonen, Hannu Minkkinen, Mikko Karttunen
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Patent number: 7138439Abstract: The present invention relates to biodegradable polymer compositions comprising poly(lactic acid) and co-polyester polymer with adipic acid mixed with organic peroxide and mineral particles. In addition, the present invention relates to products made on the basis of such compositions, such as molded and extruded articles.Type: GrantFiled: February 27, 2004Date of Patent: November 21, 2006Assignee: Biocorp North America, Inc.Inventors: Frederic Scheer, William Kelly
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Patent number: 7135509Abstract: A flame-retardant polybutylene terephthalate resin composition wherein (A) 20-70% by weight of a polybutylene terephthalate resin or a mixture of a polybutylene terephthalate resin and a polyethylene terephthalate resin, (B) 1–20% by weight of a vinyl based resin, (C) 1–20% by weight of a phosphoric acid ester, (D) 1–30% by weight of a salt of a triazine based compound and cyanuric acid or isocyanuric acid, and (E) 0.1–5% by weight of an alkaline earth metal compound are compounded, and formed articles thereof have high degrees of flame retardancy and tracking resistance, and are unlikely to allow occurrence of metal pollution or deterioration in hydrolysis resistance due to a phosphoric acid ester, and therefore are suitable for machine component parts, electrical/electronic component parts, and automotive component parts.Type: GrantFiled: September 25, 2002Date of Patent: November 14, 2006Assignee: Toray Industries, Inc.Inventors: Hiromitsu Ishii, Takashi Nagao, Jiro Kumaki
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Patent number: 7115679Abstract: This invention relates to a composition for repairing metallic articles which in its initial state is in the form of an adhesive, self-supporting putty, capable of being molded including 5–15% by weight of a sacrificial binder containing at least one acrylic resin and volatile solvent. The invention also relates to a kit for the composition and methods for repair.Type: GrantFiled: July 9, 2004Date of Patent: October 3, 2006Assignee: Liburdi Engineering Ltd.Inventors: Keith Ellison, Joseph Liburdi
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Patent number: 7115692Abstract: The invention relates to the use of water-soluble homopolymers and/or copolymers of acrylic and/or methacrylic acid with one or more acrylic, vinyl or allyl monomers as a dispersion and/or grinding-aid agent for mineral particles in aqueous suspension. The invention also concerns the said aqueous suspensions as well as their uses in the fields of paper, paint and plastics materials.Type: GrantFiled: December 18, 2001Date of Patent: October 3, 2006Assignee: Coatex S.A.S.Inventors: Jacques Mongoin, Christian Jacquemet, Jean-Marc Suau
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Patent number: 7101926Abstract: The present invention relates to substantially free-flowing polymer particles. The polymer particles are those which have a one millimeter penetration temperature of less than about 75° C. as determined by thermal mechanical analysis or an unconfined yield strength of greater than about 15 pounds per square foot (73 kilograms per square meter). The composition also comprises an effective amount of an anti-blocking agent in the presence or absence of a binding agent.Type: GrantFiled: October 8, 2004Date of Patent: September 5, 2006Assignee: The Dow Chemical CompanyInventors: James W. McMichael, Jeffrey Richard Montayne, Friedheim Bunge, Shirkant V. Dhodapkar
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Patent number: 7091271Abstract: A nanocomposite optical plastic article has a plastic host material with a temperature sensitive optical vector (x) and a core shell nanoparticulate material dispersed into the plastic host material. The core shell nanoparticulate material is characterized by a core defined by a nanoparticulate material which has a temperature sensitive optical vector (x1) and a shell defined by a coating material layer coated onto the core. It is important to the invention that temperature sensitive vector (x1) is directionally opposed to the temperature sensitive optical vector (x) and nshell<nplastic host<ncore.Type: GrantFiled: August 18, 2003Date of Patent: August 15, 2006Assignee: Eastman Kodak CompanyInventors: Robert O. James, Lawrence A. Rowley, Daniel F. Hurley, John Border
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Patent number: 7078451Abstract: A formulation for controlling the thickening profile for sheet molding compositions to a lower viscosity for use in low pressure molding conditions is provided. The B side addition of a modified alkaline earth oxide thickening system using a combination of oxides results in a sheet molding compound that is tack free at lowered viscosities. These sheet molding compounds exhibit extended shelf lives, good flowability, and excellent handling characteristics.Type: GrantFiled: December 19, 2002Date of Patent: July 18, 2006Assignee: Owens Corning Fiberglas Technology, Inc.Inventors: David R. Hartman, James Priest
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Patent number: 7056968Abstract: A calcium phosphate-synthetic resin composite body produced by pressing a calcium phosphate block (or a calcium phosphate block and calcium phosphate particles), and synthetic resin particles I, which are at least partially cross-linked in advance, and uncross-linked, synthetic resin particles II while heating, the calcium phosphate block being exposed on at least part of the surface of the composite body. The above composite body is produced by a method comprising the steps of (a) introducing the calcium phosphate block (or a calcium phosphate block and calcium phosphate particles), the synthetic resin particles I and II into a cavity of a forming die such that the calcium phosphate block is present on at least part of the surface of the composite body, and that the synthetic resin particles surround the calcium phosphate particles, if any; and (b) pressing them in the cavity of the forming die while heating, so that the synthetic resin particles are bonded to each other.Type: GrantFiled: July 9, 2003Date of Patent: June 6, 2006Assignee: PENTAX CorporationInventors: Tsuneo Hiraide, Yukio Kubota
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Patent number: 7053143Abstract: The polyester-based resin composition of the present invention comprises a polyamide resin, a polyester resin containing an antimony compound and a compound selected from the group consisting of inorganic acid salts and hydroxides of group-1 or -2 metals of the periodic table and transition metals. In the polyester-based resin composition, the phosphorus atom concentration, the antimony atom concentration, and the blending ratio of the inorganic acid salt or hydroxide to the phosphorus compound are regulated so as to satisfy the specific relationships to effectively prevent the darkening due to the deposition of antimony metal, thereby providing the polyester-based resin composition having excellent gas barrier properties and a good appearance with minimized darkening.Type: GrantFiled: September 12, 2003Date of Patent: May 30, 2006Assignee: Mitsubishi Gas Chemical Co., Inc.Inventors: Akira Mori, Koji Yamamoto
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Patent number: 7053145Abstract: There is disclosed a fire-retardant resin composition, which comprises: a thermoplastic resin component (A) comprising (a) a block copolymer mainly made of a vinyl aromatic compound and a conjugated diene compound as its constitutional components, and/or a hydrogenated block copolymer of the block copolymer, (b) a nonaromatic-series softener for rubber, (c) an ethylene/?-olefin copolymer, and (d) a polypropylene resin; and (e) an organic peroxide, (f) a (meth)acrylate-series and/or allyl-series crosslinking aid, and a metal hydrate (B), wherein a specific amount of the metal hydrate (B) to be used is a metal hydrate being pretreated with a silane coupling agent, and the fire-retardant resin composition is a mixture of the above formulation that is heated and kneaded at a temperature equal to or higher than the melting temperature of the (A). There is also disclosed a wiring material and other molded parts, in which the resin composition is utilized.Type: GrantFiled: August 27, 1999Date of Patent: May 30, 2006Assignee: Riken Technos CorporationInventors: Michihisa Tasaka, Shinzo Saito, Masaki Nishiguchi, Hitoshi Yamada, Dai Hashimoto
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Patent number: 7045569Abstract: An optical nanocomposite material has a nanoparticulate filler dispersed in a host plastic material. According to the method of making the nanocomposite material, a predetermined temperature sensitive optical vector, such as refractive index, of the plastic host material and nanoparticulate filler are directionally opposed resulting in a nanocomposite material having significantly improved stability of the refractive index with respect to temperature.Type: GrantFiled: April 5, 2002Date of Patent: May 16, 2006Assignee: Eastman Kodak CompanyInventors: John Border, Michael R. McGovern
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Patent number: 7041716Abstract: The present invention provides a thermoplastic composite comprising: a polyolefin; a cellulosic filler; a carboxylic acid and/or carboxylic acid anhydride graft polyolefin having an acid number greater than 15 mgKOH/g; and, a basic reactive filler present in an amount of 5–25 wt %, based on the weight of the composite. Such composites may be used in structural and non-structural applications and exhibit improved mechanical properties, thermal properties and/or resistance to biological degradation.Type: GrantFiled: July 11, 2003Date of Patent: May 9, 2006Assignee: National Research Council of CanadaInventors: Minh-Tan Ton-That, Florence Perrin-Sarazin, Johanne Denault
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Patent number: 7037956Abstract: A water-soluble resin composition comprising a water-soluble resin and a colorant, which copolymer has a weight average molecular weight of at least 8,000 and is prepared by polymerizing an ethylenically unsaturated carboxylic acid monomer and a monomer copolymerizable therewith in the presence of an alcoholic hydroxyl group-containing water-soluble high polymer or a copolymerizable surface active agent to give a copolymer having an acid value in the range of 5 to 120 and then neutralizing the thus-obtained copolymer with a basic, exhibits a reduced viscosity change when it is stored for a long period, and is useful as an aqueous ink capable of giving an image having good dot reproducibility and good abrasion resistance.Type: GrantFiled: October 19, 2001Date of Patent: May 2, 2006Assignee: Zeon CorporationInventors: Xiang Liu, Tomomi Onitake, Toshihiro Inoue
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Patent number: 7019053Abstract: A stabilizer mixture containing A) for example at least one compound of the formula (I) wherein the radicals R1, independently of one another, are hydrogen, C1–C8alkyl, —O?, —CH2CN, C3–C6alkenyl, C7–C9phenylalkyl, C7–C9phenylalkyl which is substituted on the phenyl radical by C1–C4alkyl; or C1–C8acyl; and B) magnesium oxide, magnesium hydroxide, zinc oxide, zinc hydroxide or an organic salt of zinc or magnesium, or a hydrotalcite; and C) either (C1) an UV absorber or (C2) a pigment or (C3) an UV absorber and a pigment. Such a stabilizer mixture is particularly useful for stabilizing a polyolefin against light-induced degradation.Type: GrantFiled: January 21, 2003Date of Patent: March 28, 2006Assignee: Ciba Specialty Chemicals CorporationInventor: François Gugumus
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Patent number: 7005460Abstract: The present invention relates to a multi-component system for making impressions which contains (a) at least one compound having at least two alkenyl groups; (b) at least one organohydrogenpolysiloxane; (c) at least one hydrosilylation catalyst; characterized by containing (d1) at least one polymeric compound having at least one alkynyl group and/or (d2) at least one compound having at least one Si—OR structural unit, wherein R=H, alkyl, alkoxyalkyl or acyl; and when a compound (d2) having at least one Si—OR structural unit is contained, (e) at least one condensation catalyst and/or condensation cross-linking agent. After the mixing of the components, the materials according to the invention cure in two steps.Type: GrantFiled: January 24, 2002Date of Patent: February 28, 2006Assignee: Kettenbach GmbH & Co. KGInventors: Alexander Bublewitz, Jens-Peter Reber, Ulrich Nagel
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Patent number: 6998433Abstract: Polyolefin-based pallets capable of passing standard pallet flammability tests are prepared by molding the pallet or one or more subassemblies thereof, of a polyolefin molding resin containing a flame retardant package containing magnesium hydroxide, and optionally alumina trihydrate, and zinc borate. The flame retardants may be supplied as a master batch at a concentration higher than that desired in the pallet or subassembly, in a polyolefin-compatible polymer, and result in pallets having a significantly lower heat release rate.Type: GrantFiled: February 27, 2003Date of Patent: February 14, 2006Assignee: Rehig Pacific CompanyInventors: Trenton M. Overholt, Justin M. Smyers
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Patent number: 6995198Abstract: A dispersion medium (31) composed as a mixture of EVA and EEA has therein a dispersion system of flame retardant particles (R1) including magnesium hydroxide treated with polyorganosiloxane, so that polyorganosilane (41) is dispersed with an equal uniformity to a flame retardant agent (40) containing magnesium hydroxide, thereby allowing a resultant flame retardant resin composite (CR1) to have a high flame retardancy, enabling prevention of the emission of smoke in great quantities or that of detrimental gases, such as halogen gases, when burnt, while having a specific gravity of 1.14 or less, enabling the separation by specific gravity difference, and this (CR1) is used as a covering material (12) for an electric wire (10) or cable (20) to be high in flame retardancy.Type: GrantFiled: November 17, 2003Date of Patent: February 7, 2006Assignee: Fujikura Ltd.Inventors: Jun Toshimitsu, Jun Suzuki
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Patent number: 6995196Abstract: A thermoplastic resin composition, comprises a thermoplastic resin (A) and thermoplastic resin fine particles (C) carrying a colloidal inorganic substance (B), and contains the colloidal inorganic substance (B) in a proportion of 0.01–0.8 wt. % of the total of the thermoplastic resin (A), the colloidal inorganic substance (B) and the thermoplastic resin fine particles (C). The thermoplastic resin composition effectively prevents the plateout without impairing inherent properties of the base thermoplastic resin, by containing the colloidal inorganic substance (B) showing a plateout-prevention effect in a small amount and in a good dispersion state.Type: GrantFiled: July 29, 2002Date of Patent: February 7, 2006Assignee: Rohm and Haas CompanyInventors: Atsuhiro Higuchi, Hiroshi Sakabe
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Patent number: 6984684Abstract: An aluminum hydroxide composition is disclosed, having diminished tendency to cause discoloration on heating at 177° C. of a plastic composition whose major polymeric component is polyvinyl chloride, comprising aluminum hydroxide and an amount, effective in diminishing discoloration, of at least one inorganic perchlorate salt selected from the group consisting of alkali metal perchlorates and alkaline earth metal perchlorates.Type: GrantFiled: November 26, 2003Date of Patent: January 10, 2006Assignee: Crompton CorporationInventors: Kook Jin Bae, Stuart D. Brilliant
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Patent number: 6979706Abstract: A dispersion comprising hydrotalcite compound particles having (1) an average secondary particle diameter of 0.1 to 3 ?m as measured by a laser beam diffraction scattering method, (2) a specific surface area of 0.5 to 10 m2/g as measured by a BET method, and (3) a platy crystal particle shape, and an organic polar solvent; and a dope for polyurethane or aromatic polyamide article. The present invention has made it possible to provide hydrotalcite compound particles having superior affinity to and dispersibility in organic polar solvents, and a dope having the above particles dispersed therein uniformly, used for production of polyurethane or aromatic polyamide article.Type: GrantFiled: July 23, 2001Date of Patent: December 27, 2005Assignee: Kyowa Chemical Industry Co., Ltd.Inventors: Akira Okada, Koji Shimizu
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Patent number: 6979707Abstract: A high-permittivity rubber compound (MX) to be over 10, 15, or 20 in relative permittivity is produced by filling, to 100 weight parts of base material (M10), 300 or more, 400 or more, or 500 or more weight parts of barium titanate family material as powder (M11) over 2000 in relative permittivity at temperatures from room temperature to 90° C. A high-permittivity rubber compound (M30, M60) crosslinked by peroxide is heat-treated (S21, S31) to remove decomposition residue of the peroxide, and powder (BT4) of barium titanate family material of industrial grade is washed (S09) by de-ionized water (Mc) to remove ionic impurities, suppressing degradation of insulating characteristics.Type: GrantFiled: March 17, 2003Date of Patent: December 27, 2005Assignee: Fujikura Ltd.Inventors: Hiroshi Niinobe, Tohru Takahashi, Kazuo Watanabe, Shoutaroh Yoshida
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Patent number: 6964986Abstract: An aqueous adhesive system consisting of two separate components, A and B. Component A is an aqueous dispersion of polymer containing at least one olefinically unsaturated double bond and Component B consists of a dispersion of a drying agent in an oil phase liquid. The adhesive produced by this system is useful for bonding material made of wood, cork, metal, plastic, stone and concrete.Type: GrantFiled: July 28, 2001Date of Patent: November 15, 2005Assignee: Henkel Kommanditgesellschaft auf AktienInventors: Thomas Bachon, Udo Frank Windhoevel, Thomas Tamcke, Hartmut Urbath, Sebastian Kostyra, Katja Raker
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Patent number: 6958367Abstract: A coating composition comprising (a) 10 to 60 wt. % of one or more hydroxy-, carboxy- and/or amino-functionalized solid resins selected from the group of methacrylic resins, acrylic resins, polyester resins, polyurethane resins, epoxy modified resins with linear, branched or star structure, (b) 5 to 40 wt. % of one or more crosslinking agents for component (a), (c) 5 to 70 wt. % of a filler, such as, aluminum hydroxide, (d) 0 to 40 wt. % of a ground polymer material, (e) 0 to 35 wt. % of organic solvents, (f) 0.01 to 15 wt. % % of additives and pigments and (g) 0 to 30 wt. % reactive thinners.Type: GrantFiled: April 25, 2003Date of Patent: October 25, 2005Assignee: E. I. du Pont de Nemours and CompanyInventors: Richard Milic, Zdenka Kupcakova
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Patent number: 6953823Abstract: Non-asbestos elastomeric insulating materials for solid propellant rocket motors are disclosed. The insulating materials are composed of EPDM rubber, polyaramide fiber, liquid EPDM rubber, magnesium hydroxide or aluminum hydroxide, silicon dioxide, chlorinated flame retardant compound and zinc hydroxystannate. The char forming organic fiber is used to substitute asbestos in traditional insulating materials that are believed to cause serious environmental problems. These fillers in the formulation, which when combined, have a synergistic effect that reduces the ablation rate significantly. Also, use of zinc hydroxystannate to substitute Sb2O3, may further reduce density of the insulator and smoke density and smoke toxicity of exhausted gas from the rocket motor.Type: GrantFiled: May 14, 2003Date of Patent: October 11, 2005Assignee: Chung Shan Institute of Science and TechnologyInventor: Jun-Ling Fan
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Patent number: 6951896Abstract: 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: GrantFiled: March 25, 2002Date of Patent: October 4, 2005Assignee: DSM IP Assets B.V.Inventor: Johannes H. G. Ottenheijm
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Patent number: 6951895Abstract: Disclosed is an absorbent composition comprising each of an acidic and a basic material, wherein the absorbent composition exhibits desirable absorbent properties. Specifically, the present invention relates to an absorbent composition comprising either an acidic water-swellable, water-insoluble polymer having a pKa between about 2 to about 12 or a basic water-swellable, water-insoluble polymer having a pKb between about 2 to about 12 and either a basic or an acidic second material. The absorbent composition has the ability to slowly absorb a large quantity of liquid, particularly while under an external pressure. The absorbent composition is useful in disposable absorbent products, such as those disposable absorbent products that are used to absorb bodily liquids.Type: GrantFiled: December 2, 1996Date of Patent: October 4, 2005Assignee: Kimberly-Clark Worldwide, Inc.Inventors: Jian Qin, Palani Raj Ramaswami Wallajapet
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Patent number: 6949598Abstract: The present invention relates to antimicrobial compositions, methods for the production of these compositions, and use of these compositions with medical devices, such as catheters, and implants. The compositions of the present invention advantageously provide varying release kinetics for the active ions in the compositions due to the different water solubilities of the ions, allowing antimicrobial release profiles to be tailored for a given application and providing for sustained antimicrobial activity over time. More particularly, the invention relates to polymer compositions containing colloids comprised of salts of one or more oligodynamic metal, such as silver. The process of the invention includes mixing a solution of one or more oligodynamic metal salts with a polymer solution or dispersion and precipitating a colloid of the salts by addition of other salts to the solution which react with some or all of the first metal salts.Type: GrantFiled: August 5, 2002Date of Patent: September 27, 2005Assignee: C.R. Bard, Inc.Inventor: Richard N. Terry
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Patent number: 6946526Abstract: The present invention is directed to a nitrile polymer vulcanizate having improved hot air aging characteristics. The nitrile polymer vulcanizate may be produced by admixing a composition containing: (i) a nitrile polymer; (ii) a filler; (iii) a metal salt of a secondary amine; (iv) a vulcanization system; and optionally (v) an additive selected from the group consisting of a strong base, a salt of a strong base and a weak acid, a salt of a weak acid, a carbodiimide, a polycarbodiimide and mixtures thereof.Type: GrantFiled: January 28, 2003Date of Patent: September 20, 2005Assignee: Bayer Inc.Inventors: Frederic Guerin, Judy Hannay, Ezio Campomizzi, Harald Bender
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Patent number: 6943207Abstract: A hot melt adhesive composition that includes thermoplastic polymer, a source of zinc, at least one of aluminum trihydrate and magnesium hydroxide, and no greater than 70% by weight of a source of halogen. Articles that include a porous substrate and the hot melt adhesive composition.Type: GrantFiled: September 13, 2002Date of Patent: September 13, 2005Assignee: H.B. Fuller Licensing & Financing Inc.Inventors: Michael J. Chanak, Cheryl L. Yarian Chase, Vernon H. Batdorf
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Patent number: 6939909Abstract: A chlorine-containing resin composition for covering an electric wire of the present invention, has a heat stability of not less than 240 minutes and a volume resistivity of 5.0×1013 to 1.0×1016 ?·cm when measured according to JIS K6723, and comprises: 100 parts by weight of a chlorine-containing resin, and 1.5 to 10 parts by weight of Mg—Al-based hydrotalcite-type particles having a composition represented by the formula: [MgxCay].Alz.(OH)2.An?p.mH2O wherein 0.2?z/(x+z)?0.6; 0.01?y/(x+z)?0.20; x+y+z=1; p=(2(x+y?1)+3z)/n; A is a n-valent anion; and m is more than 0 and not more than 0.75, having a plate surface diameter of 0.1 to 1.0 ?m and a thickness of 0.02 to 0.08 ?m, and containing calcium at a molar ratio of Ca to a sum of Mg and Al of 0.01:1 to 0.20:1, and having a heat-resisting time of not less than 4 hours upon a chlorine-containing resin composition containing the Mg—Al-based hydrotalcite-type particles.Type: GrantFiled: November 1, 2004Date of Patent: September 6, 2005Assignee: Toda Kogyo CorporationInventors: Naoya Kobayashi, Torayuki Honmyo, Tsutomu Katamoto, Akinori Yamamoto
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Patent number: 6936646Abstract: A flame-retardant molding composition that includes an epoxy resin, melamine cyanurate, and one or more hydrate metal salts capable of liberating water when heated. The hydrated metal salt may include one or more compounds selected from metal borate salts, Group IIB oxides, and polyhydroxides of one more elements selected from Group IIA elements and Group IIIB elements. The molding composition may be used to coast an electrical or electronic device by heating the molding composition to a temperature sufficient to cure the molding composition and form a polymer on the surface of the device. Electrical and electronic devices formed by the method are also disclosed.Type: GrantFiled: April 30, 2003Date of Patent: August 30, 2005Assignee: Henkel CorporationInventors: Tanweer Ahsan, Charles N. Volante, Charles S. Bischof
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Patent number: 6933331Abstract: A nanocomposite structure comprising a nanostructured filler or carrier intimately mixed with a matrix, and methods of making such a structure. The nanostructured filler has a domain size sufficiently small to alter an electrical, magnetic, optical, electrochemical, chemical, thermal, biomedical, or tribological property of either filler or composite by at least 20%.Type: GrantFiled: February 20, 2001Date of Patent: August 23, 2005Assignee: NanoProducts CorporationInventors: Tapesh Yadav, Clayton Kostelecky
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Patent number: 6924334Abstract: It is an object of the present invention to provide a polyolefin resin composition excellent in flame retardancy, in particular capable of manifesting excellent flame retardancy owing to a shape retaining effect upon combustion, and excellent also in mechanical strength and thermal characteristics, a thermoplastic resin for cable jacketing or sheathing which comprises the above resin composition, and an insulated cable. The present invention relates to a polyolefin resin composition comprising 100 parts by weight of a polyolefin resin and 0.1 to 100 parts by weight of a layered silicate, wherein a combustion residue thereof obtained by combusting said polyolefin resin composition by heating for 30 minutes under heating condition of 50 kW/m2 shows a yield point stress of not less than 4.9×103 Pa when compressed at a rate of 0.1 cm/s.Type: GrantFiled: November 10, 2000Date of Patent: August 2, 2005Assignee: Sekisui Chemical Co., Ltd.Inventors: Juichi Fukatani, Koichi Shibayama, Koji Taniguchi, Hideyuki Takahashi, Akihiko Bando, Koichiro Iwasa, Naoki Ueda
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Patent number: 6921791Abstract: Disclosed is a product and process for a substantially halogen-free thermoplastic elastomer. The thermoplastic elastomer can be incorporated into a decorative surface covering as a binder with the addition of an optional filler. The substantially halogen-free thermoplastic comprises the combination of a dynamically vulcanized blend of epoxidized natural rubber (ENR), ionomers and a diluent polymer such as ethylene vinyl acetate (EVA). The combination produces a pliable and flexible flooring product.Type: GrantFiled: May 7, 2002Date of Patent: July 26, 2005Assignee: AWI Licensing CompanyInventors: Ronald S. Lenox, Harry D. Ward, Rebecca L. Winey
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Patent number: 6919396Abstract: A chlorine-containing resin composition for covering an electric wire of the present invention, has a heat stability of not less than 240 minutes and a volume resistivity of 5.0×1013 to 1.0×1016 ?·cm when measured according to JIS K6723, and comprises: 100 parts by weight of a chlorine-containing resin, and 1.5 to 10 parts by weight of Mg—Al-based hydrotalcite-type particles having a composition represented by the formula: [MgxCay]·Alz·(OH)2·An?p·mH2O wherein 0.2?z/(x+z)?0.6; 0.01?y/(x+z)?0.20; x+y+z=1; p=(2(x+y?1)+3z)/n; A is a n-valent anion; and m is more than 0 and not more than 0.75, having a plate surface diameter of 0.1 to 1.0 ?m and a thickness of 0.02 to 0.08 ?m, and containing calcium at a molar ratio of Ca to a sum of Mg and Al of 0.01:1 to 0.20:1, and having a heat-resisting time of not less than 4 hours upon a chlorine-containing resin composition containing the Mg—Al-based hydrotalcite-type particles.Type: GrantFiled: November 25, 2002Date of Patent: July 19, 2005Assignee: Toda Kogyo CorporationInventors: Naoya Kobayashi, Torayuki Honmyo, Tsutomu Katamoto, Akinori Yamamoto
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Patent number: 6908960Abstract: A composite dielectric material comprising a resin resulting from a polyvinylbenzyl ether compound and a dielectric ceramic powder dispersed therein is useful in the high-frequency region. A composite magnetic material comprising a polyvinylbenzyl ether compound and a magnetic powder is also provided as well as a flame retardant material comprising a polyvinylbenzyl ether compound and a flame retardant. These materials may be used in the fabrication of substrates, prepreg sheets, coated metal foils, molded items, and metal foil-clad substrates.Type: GrantFiled: December 27, 2000Date of Patent: June 21, 2005Assignee: TDK CorporationInventors: Minoru Takaya, Hisashi Kobuke, Toshikazu Endo, Seiji Takahara, Toshiyuki Abe, Hiroshige Ohkawa, Masami Sasaki, Kenichi Kawabata
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Patent number: 6894101Abstract: The invention relates to a cross-linkable, halogen-free, flame-resistant plastic mixture which can especially be used, in a cross-linkable state, for coating cables. The inventive plastic mixture comprises the following plastic components: (a) 3 to 50 weight parts (phr) of at least one ethylene copolymer from the group comprising ethylene vinyl acetates, ethylene ethyl acrylates, ethylene methyl acrylates or ethylene butyl acrylates, (b) 30 to 96 weight parts (phr) of a high-density polyolefin, especially a HDPE (High Density Polyethylene) having a density of >0.94 g/cm3, and (c) 1 to 20 weight parts (phr) of a polyolefin which has been grafted with a derivative of an unsaturated carboxylic acid, especially HDPE-g carboxylic acid derivatives. Components (a) to (c) together produce a total of 100 weight parts (phr) of plastic. The mixture also comprises the following components: (d) 40 to 250 weight parts (phr) of a filling material, and (c) 0.1 to 15 weight parts (phr) of a stabilizer system.Type: GrantFiled: July 18, 2001Date of Patent: May 17, 2005Assignee: Martinswerk GmbHInventors: Heinz Paul, René Herbiet, Hans Jürgen Eichler, Guido Jodocy, Winifried Toedt
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Patent number: 6890983Abstract: An aqueous composite particle composition containing composite particles and polyvalent metal ion is provided. The composite particles contain pigment particle with adsorbed polymer particles. The polymer particles contain pendant acid functional groups and has a molecular weight in a select range. Also provided are methods of preparing the aqueous composite particle composition. The aqueous composite particle composition is useful for preparing coating with high gloss and improved solvent resistance.Type: GrantFiled: June 11, 2002Date of Patent: May 10, 2005Assignee: Rohm and Haas CompanyInventors: William Joseph Rosano, Gary Robert Larson, Leo Joseph Procopio, Albert Mulligan Dager, Gary David Greenblatt
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Patent number: 6890453Abstract: The present invention is a stabiliser composition for halogen-containing polymers, comprising a salt of a halogen-containing oxy acid and an inorganic or organic acid or an inorganic base. The present invention relates also to a process for the preparation of such stabiliser compositions and to halogen-containing polymers comprising such stabiliser compositions.Type: GrantFiled: November 21, 2003Date of Patent: May 10, 2005Assignee: Baerlocher GmbHInventors: Stefan Fokken, Jürgen Hauk, Manfred Weigl
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Patent number: 6887922Abstract: The invention describes a solid glass composite comprising glass granules and a binder resin which may be used in a wide range of applications, for example, flooring, furniture, lighting, work surfaces and architectural features.Type: GrantFiled: September 1, 2000Date of Patent: May 3, 2005Assignee: Sheffield Hallam UniversityInventor: James Roddis
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Patent number: 6884314Abstract: The present invention relates generally to conductive, silicone-based compositions, with improved initial adhesion and reduced micro-voiding. More specifically, the present invention relates to a conductive, silicone-based composition, which includes a polyorganosiloxane, a silicone resin, and a conductive filler component.Type: GrantFiled: April 23, 2001Date of Patent: April 26, 2005Assignee: Henkel CorporationInventors: Robert P. Cross, Lester D. Bennington
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Patent number: 6881772Abstract: A stabilizer mixture containing (A) a sterically hindered amine compound, (B) an organic salt of Ca or an inorganic salt of Ca and (C) an organic salt of Mg, an inorganic salt of Mg, an organic salt of Zn or an inorganic salt of Zn; with the proviso that component (C) is Mg-hydroxide-carbonate, Zn-hydroxide-carbonate or dolomite, when component (B) is calcium stearate.Type: GrantFiled: June 7, 2002Date of Patent: April 19, 2005Assignee: Ciba Specialty Chemicals Corp.Inventor: François Gugumus
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Patent number: 6861481Abstract: An ionomeric nanocomposite that includes a base component of a propylene-based polyolefin-metal salt component and a nanostructured material. Optionally, the blend further contains a polymeric component including an ethylene ionomer, a styrenic block ionomer, a hydrogenated styrene-butadiene random copolymer, or a combination thereof. Such ionomeric nanocomposites have increased scratch and mar resistance while still retaining clarity and thermal stability. Methods of preparing such blends, as well as resultant articles including such blends, are also part of the invention.Type: GrantFiled: June 11, 2003Date of Patent: March 1, 2005Assignee: Solvay Engineered Polymers, Inc.Inventors: Rui-dong Ding, Clint Newell