Atom Other Than P, O, H, Or A Metal Patents (Class 524/415)
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Patent number: 6184269Abstract: Moldable intumescent thermoplastic elastomer materials are disclosed based on suitable proportions of polyethylene, chlorinated polyethylene and a silicone elastomer with silphenylene siloxane monomer moieties and stabilizers, all with foamers, char formers and fillers. Examples of suitable silphenylene-siloxane monomer moieties are 1,4-phenylene-hexamethyltrisiloxanyl and 1,4-phenylene-1,1,3,5,5-pentamethyl-3-vinyltrisiloxanyl where the respective methyl groups may be replaced with suitable phenyl groups or other lower alkyl groups and their fluorinated analogs.Type: GrantFiled: July 1, 1999Date of Patent: February 6, 2001Assignees: General Motors Corporation, Delphi Technologies Inc.Inventors: Ismat Ali Abu-Isa, Huide D. Zhu
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Patent number: 6150448Abstract: A flame retardant including red phosphorus in an amount of 1.5 to 15 parts by weight and an ammonium polyphosphate compound in an amount of 10 to 70 parts by weight, based on 100 parts by weight of the solid content of an aqueous dispersion of an ethylene-vinyl acetate-acrylate copolymer having an ethylene content of 2 to 30 wt %, a vinyl acetate content of 40 to 88 wt %, an acrylate content of 10 to 50 wt % and a resin solid content of 35 to 75 wt %. The flame retardant is useful to flameproof mesh sheets.Type: GrantFiled: December 18, 1998Date of Patent: November 21, 2000Assignees: Kyowa Kabushiki Kaisha, Saiji NozakiInventors: Saiji Nozaki, Kuniaki Kamiya
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Patent number: 6093298Abstract: Provided are cationic electrodepositable compositions comprised of an acidified aqueous dispersion of (a) an ungelled cationic resin, (b) a curing agent having at least two functional groups which are reactive with (a), and (c) an exfoliated silicate derived from a layered silicate. These compositions exhibit improved crater control. Also provided is a method of electrocoating conductive substrates using such compositions.Type: GrantFiled: February 22, 1999Date of Patent: July 25, 2000Assignee: PPG Industries Ohio, Inc.Inventors: Alan J. Kaylo, Richard F. Karabin, Tie Lan, Michael G. Sandala
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Patent number: 6093759Abstract: Flame-retardant thermoplastic molding compositions compriseA) from 5 to 99% by weight of a thermoplastic polymer,B) from 0.1 to 50% by weight of a phosphazene of the general formula I(PN.sub.2-x H.sub.1-y).sub.z Iwhere the numerical values of x, y and z, independently of one another, are as follows:1>x>0.051>y>0.05z>1, andC) from 0 to 70% by weight of other additives and processing aids,where the total of the percentages by weight of components A) to C) is 100%.Type: GrantFiled: October 15, 1998Date of Patent: July 25, 2000Assignee: BASF AktiengesellschaftInventors: Brigitte Gareiss, Hans-Michael Schneider, Martin Weber
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Patent number: 6059867Abstract: A non-chromate, corrosion-inhibiting coating composition for metal surfaces includes at least one inhibitor selected from the group consisting of phosphates, phosphosilicates, silicates, and mixtures thereof, at least one inhibitor selected from the group consisting of titanates, zinc salts, and mixtures thereof, and a carrier for these inhibitors, the carrier capable of placing the inhibitors in proximity with the metal surface. In a preferred embodiment, the coating composition further includes a borate such as boric acid, and a succinate. A preferred phosphate includes calcium dihydrogen phosphate, and sodium titanium oxide is a preferred titanate. The zinc salt can include zinc phosphate or zinc cyanamide.Type: GrantFiled: June 10, 1999Date of Patent: May 9, 2000Assignee: PRC-DeSoto International, Inc.Inventors: Kathrine J. Lewis, Jak Aklian
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Patent number: 6037519Abstract: Bone graft substitute compositions are provided for promoting new bone growth and arthrodesis. The compositions include a carrier for controlled delivery of osteoinductive factors. In one embodiment, the carriers include a biphasic calcium phosphate ceramic having between about 2-40% hydroxyapatite and about 98-60% tricalcium phosphate by volume, and a calcium/phosphorous ratio of between about 1.50 to about 1.60. The invention also includes osteoinductive compositions including the carriers and an effective amount of a bone morphogenetic protein dispersed within the ceramic. The composition has a weight ratio of protein to ceramic of no more than about 1:200. In a specific embodiment, the weight ratio of protein to ceramic is between about 1:200 and about 1:2000.Type: GrantFiled: October 20, 1997Date of Patent: March 14, 2000Assignee: SDGI Holdings, Inc.Inventor: William F. McKay
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Patent number: 5990226Abstract: There is provided an aqueous resin composition which does not cause coagulation, can be cured at low temperature, and, by this curing, forms a coating superior in mechanical strength, water resistance, solvent resistance and adhesion to various substrates. The aqueous resin composition of this invention comprises an oxazoline group-containing polymer (A), a carboxyl group-containing polymer (B), and an acidic compound-amine salt catalyst (C). The curing is carried out by a reaction between the oxazoline group-containing polymer (A) and the carboxyl group-containing polymer (B) in the presence of the acidic compound-amine salt catalyst (C).Type: GrantFiled: January 21, 1993Date of Patent: November 23, 1999Assignee: Nippon Shokubai Co., Ltd.Inventors: Yoshihiro Arita, Kiyoshi Kawamura, Kenta Kanaida, Satoshi Yamada
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Patent number: 5965206Abstract: The invention relates to a composition that comprises a thermoplastic or elastomeric polymeric substrate (A) and an antistatic mixture (B) in the form of contiguous fibers, which mixture comprises (b1) an organic polymeric material that is fibrous or forms fibers on mixing and is not soluble in the thermoplastic or elastomeric polymeric substrate (A); (b2) a polymer or copolymer capable of ion conduction that has blocks for complexing or solvating a salt of an inorganic or low-molecular-weight organic protonic acid (b3) and has a better compatibility with the organic polymer (b1) that is fibrous or forms fibers on mixing than with the polymeric organic substrate (A); and (b3) a salt of an inorganic or low-molecular-weight organic protonic acid such as NaClO.sub.4 or K P F.sub.6 that has been complexed or solvated in the polymer or copolymer (b2).Type: GrantFiled: September 8, 1997Date of Patent: October 12, 1999Assignee: Ciba Specialty Chemicals CorporationInventors: Bruno Hilti, Ernst Minder, Jurgen Pfeiffer, Markus Grob
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Patent number: 5952399Abstract: A dental material based on an organic polymerisable binding agent has a content ofA) one or more mixed apatites of the typeA1) A.sub.10 (XO.sub.4).sub.6 Z.sub.2 +/B*.sub.10-u C*.sub.u (Y*).sub.6 Z'.sub.2 and/orA2) A'.sub.10-r (X'O.sub.4).sub.6-s Z".sub.2-t +/B'.sub.r (Y').sub.s Q.sub.t -B".sub.10-u' C'.sub.u' (Y").sub.6 Z'".sub.2 and/orA3) A".sub.10-r' (X"O.sub.4).sub.6-s' Z"".sub.2-t' +/A'".sub.r' (X'"O.sub.4).sub.s' +/B'".sub.10-u" C".sub.u" (Y'").sub.6 Z'"".sub.2in which the formulae assume the significance specified in the description, in a quantity that is effective for the absorption of ions from the biological application environment of the dental material. The polymerisable dental material has variably adjustable transparency, good polishability, high strength and the capacity to release and absorb ions into and from a biological environment. Also described is a process for using the mixed apatites A1), A2) and/or A3) in polymerisable dental materials.Type: GrantFiled: September 30, 1997Date of Patent: September 14, 1999Assignee: Degussa AktiengesellschaftInventor: Harald Rentsch
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Patent number: 5948833Abstract: A water-borne road marking paint composition which includes a chelating agent capable of chelating iron ions to form a substantially colorless complex is provided. A road marking produced from the traffic paint of the present invention substantially reduces or prevents yellowing of white road marking from iron and iron compound debris strewn on the road surfaces. A method of reducing or preventing yellowing of a newly-applied road marking on a road surface of a water-borne road marking paint is also disclosed. The method comprises incorporating in the water-borne road marking paint a chelating agent capable of chelating iron ions to form a substantially colorless complex. Further reduction of yellowing of the road marking is observed when a pigment dispersant is incorporated in the water-borne road marking paint.Type: GrantFiled: May 19, 1997Date of Patent: September 7, 1999Assignee: Rohm and Haas CompanyInventors: Josef Hans Jilek, Angelo Sanfilippo, Donald Craig Schall, Andrew Paul Trapani
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Patent number: 5948836Abstract: Compositions comprising a synthetic organic polymer and, as stabilizer, a combination ofA) a sterically hindered hydroxylamine, or an ether or ester thereof, andB) a compound containing an oxo and/or hydroxyl group bonded to a metal atom,show an excellent stability against the deleterious effects of light, oxygen and/or heat.A combination of components A and B is also effective to stabilize a polyolefin or olefin copolymer film for agricultural applications against deleterious effects of light, oxygen, heat and pesticides.Type: GrantFiled: September 29, 1997Date of Patent: September 7, 1999Assignee: Ciba Specialty Chemicals CorporationInventor: Michela Bonora
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Patent number: 5936048Abstract: There are herein disclosed a method for preparing a modified resin which comprises thermal/reaction by the use of a norbornenyl group-containing compound typified by norbornenecarboguanamine or its derivative, a method for preparing an epoxy-modified resin which comprises the step of reacting the above-mentioned modified resin and an epoxide, a flame-retarding method, a thermal stabilization method, a compatibilizing method and a surface modification method which comprise utilizing the modified resin, as well as a coating resin composition and an adhesive resin composition containing the modified resin.According to the preparation methods of the present invention, the deterioration of a material scarcely occurs, and a functional group which is excellent in flame retardancy, thermal stability, compatibility and the like can be introduced to the resins.Type: GrantFiled: June 24, 1998Date of Patent: August 10, 1999Assignee: Mitsui Chemicals, Inc.Inventors: Tetsuya Oishi, Kazuo Sugazaki, Jin Suzuki
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Patent number: 5902845Abstract: A rubber-modified styrenic resin composition comprising 100 parts by weight of a rubber-modified styrenic resin (A) having 10 to 40% by weight of the content of a soft component particle and a mean particle diameter of the said particle of 0.1 to 1.2 .mu.m, and 1 to 30 parts by weight of fine particles having a mean particle diameter of 0.1 to 5 .mu.m and not having a glass transition temperature between -130 to 90.degree. C.A rubber-modified styrenic resin composition having superior plane impact strength, rigidity and gloss, and its molded article are provided.Type: GrantFiled: March 1, 1996Date of Patent: May 11, 1999Assignee: Sumitomo Chemical Company, LimitedInventors: Shuji Yoshimi, Hayato Kihara, Takahiro Ishii
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Patent number: 5863454Abstract: An electroconductive polymer composite for use in secondary batteries as positive electrode active materials is disclosed. It includes 10-99 weight percent of a conjugated electroconductive polymer, such as polyaniline, and 90-1 weight percent of polymeric electrolyte. The latter is composed of 10-90 weight percent of an ionic salt, such as LiClO.sub.4, and 90-10 weight percent of a polymer which can form an electrolyte material with the ionic salt. The polymer, for example, can be polyvinyl alcohol or polyalkylene oxide. A method of using the electroconductive polymer composite to prepare the positive electrode of secondary batteries is also disclosed.Type: GrantFiled: January 6, 1997Date of Patent: January 26, 1999Assignee: National Science CouncilInventors: Show-An Chen, Liang-Chang Lin
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Patent number: 5851663Abstract: A pressure-sensitive adhesive composition comprises an adhesive selected from the group consisting of rubber resin adhesives and acrylic adhesives containing from about 10 to about 60% by weight of the adhesive of a non-halogen intumescent flame retardant.Type: GrantFiled: November 15, 1996Date of Patent: December 22, 1998Assignee: Minnesota Mining and Manufacturing CompanyInventors: Keith P. Parsons, Mark R. Buckingham, James H. Diamond, Steven J. Ilkka, Petra Nowak
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Patent number: 5834535Abstract: An intumescent thermoplastic elastomer molding composition is disclosed that includes high density polyethylene with chlorinated polyethylene and/or silicone rubber; a heat stabilizer for the thermoplastic elastomer material and an intumescent and fire-resistant additive for the thermoplastic elastomer, whereby moldings prepared from such mixture have good physical properties over a substantial range of ambient temperatures and display a resistance to flame and heat as characterized by the Intumescence Efficiency test of this specification.Type: GrantFiled: December 22, 1996Date of Patent: November 10, 1998Assignee: General Motors CorporationInventors: Ismat Ali Abu-Isa, Craig Bryant Jaynes
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Patent number: 5830940Abstract: The present invention relates to a shaped article of a liquid crystalline polymer containing (A) 100 parts by weight of a liquid crystalline polyester and/or liquid crystal polyesteramide capable of forming an anisotropic melt and (B) 0.01 to 2 parts of an olefinic polymer and having a retention rate of a weld strength of 15% to 100%, which has excellent heat stability, mechanical properties, dimensional stability and mold releasability and is suitable for various application uses such as electrical and electronical related devices, accurate machine related devices, office related devices, automobile related parts.Type: GrantFiled: July 18, 1996Date of Patent: November 3, 1998Assignee: Toray Industries, Inc.Inventors: Kiyokazu Nakamura, Norio Kitajima, Toshihide Inoue
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Patent number: 5810914Abstract: A flame-retardant engineering plastic composition comprising (A) 100 parts by weight of an engineering plastic, (B) from 1 to 30 parts by weight of a heat-expandable graphite, and (C) from 1 to 30 parts by weight of red phosphorus and/or (D) from 1 to 30 parts by weight of a phosphorus compound.Type: GrantFiled: March 7, 1997Date of Patent: September 22, 1998Assignee: Tosoh CorporationInventors: Fumio Okisaki, Akinori Hamada, Masahiro Obasa
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Patent number: 5763738Abstract: A composition and methods for converting a chrysotile asbestos-containing material to a non-regulated environmentally benign solid which comprises a fluoro acid decomposing agent capable of dissociating the chrysotile asbestos to non-regulated components, wherein non-regulated components are non-reactive with the environment, and a binding agent which binds the non-regulated components to form an environmentally benign solid.Type: GrantFiled: September 27, 1996Date of Patent: June 9, 1998Assignee: Associated Universities, Inc.Inventors: Toshifumi Sugama, Leon Petrakis
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Patent number: 5700575Abstract: Water-insoluble ammonium polyphosphate particles are provided which include melamine-coated ammonium polyphosphate particles with the surface thereof being crosslinked by a reaction between the melamine of the melamine-coated ammonium polyphosphate particles and a crosslinking agent having a functional group capable of reacting with the active hydrogen atoms belonging to the amino group in the melamine molecule.Type: GrantFiled: December 23, 1994Date of Patent: December 23, 1997Assignee: Chisso CorporationInventors: Masuo Iwata, Mika Seki, Kouji Inoue, Ryoji Takahashi, Tikashi Fukumura, Masaya Tanaka
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Patent number: 5696192Abstract: A polyoxyalkylene-modified organopolysiloxane that generates almost no odor with the passage of time, and a method for preparation of the polyoxyalkylene-modified organopolysiloxane. This organopolysiloxane bears polyoxyalkylene bonded to silicon across alkylene, and contains 5-1,000 ppm by weight of an antioxidant. It also has a peroxide value not exceeding 5 meq/kg, and a total content of aldehyde plus ketone not exceeding 100 ppm.Type: GrantFiled: November 15, 1996Date of Patent: December 9, 1997Assignee: Dow Corning Toray Silicone Co., Ltd.Inventor: Asao Harashima
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Patent number: 5691406Abstract: A universal elastomeric compound whose improved features display excellent permeability while simultaneously having above average chlorine compatibility. This improved elastomeric compound comprises a measured quantity of a terpolymer of ethylene-propylene-non-conjugated diene copolymer (i.e. EPDM, e.g. ROYALENE 3180), chlorinated Isobutylene (e.g. Chlorobutyl 1066), furnace or carbon black (e.g., N-550 Black), paraffinic oil (e.g., Sunpar 150 Oil), organofunctional magnesium silicate (e.g., Mistron CB), magnesium oxide (e.g., Maglite D Bar), zinc oxide, stearic acid, tetramethylthiuram disulfide (e.g., TUEX), zinc thiophosphate (e.g., ROYALAC 136), and treated sulfur (e.g., Spider Sulfur). Adding a specified quantity of said ROYALAC 136, TUEX, and Spider Sulfur to the EPDM/butyl compound imparts low taste and odor to water. Additionally, adding a specified quantity of said Mistron CB to ROYALENE 3180 and Chlorobutyl 1066, provides for an elastomeric compound having excellent resistance to chloramines.Type: GrantFiled: August 21, 1996Date of Patent: November 25, 1997Assignee: Amtrol Inc.Inventors: Joseph A. Lane, Julian Mitchel
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Patent number: 5681884Abstract: An accelerator system for the cold crosslinking of polymers which harden on exposure to moisture by hydrolysis/condensation, comprising: (C) x parts by weight of a catalyst for crosslinking the said polymers by polycondensation, x ranging from 0.01 to 10; (E) Y parts by weight of a solid inorganic compound containing an amount y of water in the form of water of hydration and/or water adsorbed by capillary condensation, this amount y ranging from 0.5 to 40 parts by weight, and which can represent up to 70% of the weight of the said solid inorganic compound; (F) z parts by weight of fillers, z ranging from 0 to 50; (D) 100-(x+Y+z) parts by weight of a diluent or of a solvent of the said catalyst (C), the diluent or solvent having a dynamic viscosity at 25.degree. C. of the order of 50 to 200,000 mPa.s; the respective amounts of the four constituents (C), (E), (F) and (D) being such that the system obtained exists in the form of a manipulable paste.Type: GrantFiled: September 22, 1994Date of Patent: October 28, 1997Assignee: Rhone-Poulenc ChimieInventors: Michel Letoffe, Jean-Marc Pujol
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Patent number: 5665802Abstract: The present invention provides an improved grade of polyimide containing an organic phosphorus compound, a film composed thereof and a method of making the aforementioned film. According to the present invention, it is possible to obtain a polyimide film improved in mechanical strength.Type: GrantFiled: September 9, 1996Date of Patent: September 9, 1997Assignee: Kanegafuchi Kagaku Kogyo Kabushiki KaishaInventors: Haruhiko Maki, Hirosaku Nagano, Yoshiaki Inaba
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Patent number: 5616287Abstract: The action of thermoplastic polymers to whose polymer backbone aliphatic or cycloaliphatic groups are bonded via a group --O--, --O--CO--, --CO--OR.sup.22 --OCO-- or --CO--O--, said aliphatic or cycloaliphatic groups being substituted by Cl, Br and/or iodine in the .alpha.-, .beta.-, .gamma.- or .omega.-position, on an unsubstituted or substituted tetrathio-, tetraseleno- or tetratelluro-naphthalene or -tetracene contained in this polymer gives electrically conducting compositions by the formation of charge transfer complexes. These compositions are suitable for the production of antistatic or electrically conducting mouldings, sheets, filaments, fibres, coatings and composites.Type: GrantFiled: March 28, 1995Date of Patent: April 1, 1997Assignee: Ciba-Geigy CorporationInventors: Jurgen Finter, Bruno Hilti, Carl W. Mayer, Ernst Minder
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Patent number: 5614568Abstract: An antibacterial resin composition comprising (A) 100 parts by weight of a styrene resin, (B) 0.01 to 30 parts by weight of an antibacterial agent and (C) 0.01 to 30 parts by weight of a compound having a specific functional group, and said antibacterial resin composition is excellent in antibacterial property and surface appearance of molded article and can give a molded article which can be applied to many fields.Type: GrantFiled: May 22, 1995Date of Patent: March 25, 1997Assignee: Japan Synthetic Rubber Co., Ltd.Inventors: Masaaki Mawatari, Chie Hamazaki, Tateki Furuyama
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Patent number: 5597855Abstract: Poly(Pentaerythrityl diphosphonate) of formula (I): ##STR1## wherein n is an integer having a value comprised within the range of from 3 to 100.The poly(pentaerythrityl diphosphonate) of formula (I) is useful as a flame retardant additive for thermoplastic polymers.Type: GrantFiled: May 24, 1995Date of Patent: January 28, 1997Assignee: Eniricerche S.p.A.Inventors: William Giroldini, Antonio Rinaldi, Gianluigi Landoni, Neri Carlo
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Patent number: 5594046Abstract: The invention relates to an intumescent one-component sealant based on polyurethane and containing an intumescent agent and a vitreous fusible filler. The intumescent agent and the vitreous filler have been pretreated by reaction with an isocyanate having a functionality of at least 2. The sealant is stable in storage and is an effective fire barrier in the event of fire.Type: GrantFiled: May 30, 1995Date of Patent: January 14, 1997Assignee: Bostik, Inc.Inventor: Roland Joachimi
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Patent number: 5549849Abstract: The conductive and exothermic fluid material contains a powdery material such as particles of carbon black particles and graphite particles, spherical metal particles, a metal oxide and/or a metal salt, and a binder material such as a synthetic resin varnish or a gluey material. The ratio of the powdery material to the binder material is in the range of from approximately 93 to 7 to approximately 55 to 45. The graphite particles have each a long diameter of 300 microns or shorter and a short diameter of 200 microns or shorter. The spherical metal particles and the metal oxide have each a particle size of 300 microns or shorter.The conductive and exothermic fluid material has a small electrical resistance and it can produce high temperatures with a small magnitude of electric currents.Type: GrantFiled: March 20, 1995Date of Patent: August 27, 1996Assignee: Carrozzeria Japan Co., Ltd.Inventors: Genji Namura, Masao Takasawa
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Patent number: 5510404Abstract: A resin composition comprising a resin, a hindered piperidinyloxy compound of the formula (I): ##STR1## wherein R.sub.1, R.sub.2, R.sub.3 and R.sub.4 are independently a C.sub.1 -C.sub.4 alkyl group and Z is a hydrogen atom or an organic group having at least one carbon atom, and a hypophosphite compound of the formula:X.sub.a (H.sub.2 PO.sub.2).sub.b (II)wherein X is a metal ion, an ammonium ion or a phosphonium ion, a and b are positive numbers provided that they satisfy the equation: a.times.c=b in which c is a valency of X, wherein a weight ratio of the hypophosphite compound (II) to the hindered piperidinyloxy compound (II) is at least 0.001, which has good heat stability and weather resistance.Type: GrantFiled: September 14, 1993Date of Patent: April 23, 1996Assignee: Sumitomo Chemical Company, LimitedInventors: Kiyohiko Nakae, Kozo Kotani, Taiichi Sakaya, Makoto Nakagahara
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Patent number: 5498649Abstract: Thermoplastic elastomeric ablative insulation having low density are disclosed. The ablative insulation is based upon a thermoplastic elastomeric polymer resin containing a polyamide polymer and a maleic anhydride modified EPDM polymer. The ratio of polyamide polymer to maleic anhydride modified EPDM is in the range from about 20:80 to about 40:60. Carefully selected fillers provide suitable charring and ablative insulation performance without unduly increasing the insulation density. Typical fillers include an phosphorus containing compound, such as ammonium polyphosphate, a polyhydric alcohol present, such as pentaerythritol, silicone resin, chopped fibers, an antioxidant, a butadiene polymer, and a peroxide.Type: GrantFiled: May 18, 1993Date of Patent: March 12, 1996Assignee: Thiokol CorporationInventor: David G. Guillot
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Patent number: 5496881Abstract: The invention is an aqueous composition for forming fireproof coatings and caulking. The composition is halogen, asbestos and antimony-free. The composition contains 5-20% by weight of a binder resin; 10-60% by weight of a particulate flameproofing agent; 0.2 to 27.5% by weight of non-asbestos inorganic fibers with an average length of 300 micron; 0.1 to 10% by weight of a plasticizer; and water.Type: GrantFiled: June 21, 1994Date of Patent: March 5, 1996Assignee: Chemische Fabrik Gruenau GmbHInventors: Dieter Annemaier, Robert Graf
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Patent number: 5480584Abstract: Dust-control treatment of dusty powder, which mainly passes through a 100 mesh sieve, such as pigment and fertilizer, is achieved by, firstly blending the dusty powder with fibrillatable polytetrafluoroethylene and a pair of materials capable of initiating an exothermic reaction upon contact, and then subjecting the blended material to compression-shear under the exothermic reaction and raising the temperature of the blended material to 50.degree.-300.degree. C. The polytetrafluoroethylene fibrillates during the compression-shear and the formed fibrils enclose the dusty powder to turn it to a dust-controlled one.Type: GrantFiled: April 26, 1995Date of Patent: January 2, 1996Assignees: Murakashi Lime Industry Co., Ltd., Nippon Hodo Co., Ltd., Dupont-Mitsu Fluorochemicals Co., Ltd.Inventors: Teruo Urano, Hiroshi Miyaji, Masatsune Ogura, Tetsuya Shimoda, Katuaki Ishikawa
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Patent number: 5470340Abstract: A copolymer of p-dioxanone and a prepolymer of p-dioxanone and lactide and/or glycolide, and absorbable surgical devices such as sutures, surgical meshes, surgical staples, hemostatic clips, suture knot clips, and the like made therefrom.Type: GrantFiled: October 6, 1993Date of Patent: November 28, 1995Assignee: Ethicon, Inc.Inventors: Rao S. Bezwada, Shalaby W. Shalaby, Donald F. Koelmel
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Patent number: 5430080Abstract: A flame-retardant thermoplastic resin composition comprising,(A) 10 to 40% by weight of a melamine-coated ammonium polyphosphate having melamine added and/or adhered onto the particle surfaces of a powdery ammonium polyphosphate expressed by the following formula (I): ##STR1## wherein n is an integer of 2 or more, (B) 1 to 20% by weight of a triazine-containing polymer, and(C) 89 to 40% by weight of a thermoplastic resin, the total amount of these components being 100% by weight.Type: GrantFiled: May 31, 1994Date of Patent: July 4, 1995Assignee: Chisso CorporationInventors: Masuo Iwata, Noriaki Narita, Kouji Inoue, Ryoji Takahashi
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Patent number: 5403877Abstract: This invention relates to salts of triazine derivatives with oxygenated as of phoshporus, having general formula (I): ##STR1## obtained by salification, with an acid containing phosphorus, of polycondensates of 2,4,6-triamino-1,3,5-triazine.The compounds having the general formula (I) are particularly used as flame-resistant additives.Type: GrantFiled: August 18, 1993Date of Patent: April 4, 1995Assignee: Ministero Dell'Universita E Della Ricerca Scientifica E. TecnologicaInventors: Roberto Cipolli, Enrico Masarati, Gilberto Nucida, Roberto Oriani, Mario Pirozzi
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Patent number: 5401797Abstract: A highly antioxidant resin composition containing a resin, a solution of a hypophosphite compound in an organic solvent, a heat stabilizer and a hindered amine base weathering stabilizer, which has improved heat stability and weather resistance. The hypophosphite compound is preferably dissolved in a polyvalent alcohol having a molecular weight of not more than 50,000.Type: GrantFiled: October 23, 1991Date of Patent: March 28, 1995Assignee: Sumitomo Chemical Company, LimitedInventors: Kozo Kotani, Taiichi Sakaya
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Patent number: 5401793Abstract: An intumescent fire-resistant coating and a fire-resistant material using the same are disclosed, the coating essentially including (A) at least one inorganic compound selected from the group consisting of a carbide, boride, nitride, carbonitride, or carboboride of titanium, zirconium, vanadium, niobium, tantalum, molybdenum, tungsten, silicon or chromium and a carbide, nitride or carbonitride of boron, (B) a synthetic resin, and (C) at least one phosphorus and/or sulfur compound capable of forming a Lewis acid on heating.Type: GrantFiled: March 18, 1992Date of Patent: March 28, 1995Assignee: Dainippon Ink and Chemicals, Inc.Inventors: Nobuo Kobayashi, Hikaru Yoshioki, Kenji Yoshida, Katsunobu Sagawa, Shigehisa Ishihara
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Patent number: 5399599Abstract: Thermoplastic elastomeric ablative insulation having good mechanical properties at extremely low temperatures are disclosed. The insulation is based upon a polyamide-ether resin and includes carefully selected fillers to possess good low temperature mechanical properties and still provide suitable charring and ablative insulation performance at low temperatures (-65.degree. F.). A typical insulation within the scope of the present invention includes a polyamide-ether thermoplastic elastomeric polymer resin, an inorganic phosphorus containing compound, such as ammonium polyphosphate, present in the insulation from about 5 to about 60 phr, and a polyhydric alcohol present, such as pentaerythritol, in the insulation from about 1 to about 30 phr. The insulation compositions within the scope of the present invention optionally include silicone resin present in the insulation in range from about 0 to 15 phr. Chopped fiber filler may also be present in the insulation in range from about 0 to 100 phr.Type: GrantFiled: April 6, 1993Date of Patent: March 21, 1995Assignee: Thiokol CorporationInventor: David G. Guillot
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Patent number: 5389707Abstract: Salts of triazinic compounds with phosphorus oxyacids, having the general rmula (I): ##STR1## obtained by salifying oligomeric derivatives of 2,4,6-triamino-1,3,5-triazine with a phosphorus-containing acid.The compounds with general formula (I) find use in particular as flame-retardant additives.Type: GrantFiled: May 6, 1994Date of Patent: February 14, 1995Assignee: Ministero Dell'Universita' e Della Ricerca Scientifica e TecnologicaInventors: Roberto Cipolli, Enrico Masarati, Roberto Oriani, Mario Pirozzi, Gilberto Nucida
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Patent number: 5360859Abstract: A stabilizer for resin, which is composed of a lithium aluminum complex hydroxide salt represented by the following formula[Al.sub.2 Li(OH).sub.6 ].sub.n X.mH.sub.2 O (1)wherein X is an inorganic or organic anion, n is a valence number of anion X, and m is a number of not more than 3.A chlorine-containing polymer composition comprising a chlorine-containing polymer and 0.01 to 10 parts by weight, per 100 parts by weight of the chlorine-containing polymer, of the above stabilizer. There is also provided an olefin-type resin composition comprising an olefin-type resin containing halogen-containing catalyst residues and 0.01 to 10 parts by weight, per 100 parts by weight of the olefin-type resin, of the above stabilizer. The stabilizer has excellent heat stabilizing action.Type: GrantFiled: January 27, 1994Date of Patent: November 1, 1994Assignee: Mizusawa Industrial Chemicals, Ltd.Inventors: Masahide Ogawa, Kunio Goto, Shoji Shoji, Yoshinobu Komatsu, Akira Tatebe
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Patent number: 5352715Abstract: Injectable implant compositions comprise a biocompatible ceramic matrix present in a fluid carrier, where the ceramic matrix comprises particles having a size distribution in the range from 50 .mu.m to 250 .mu.m. Optionally, the compositions may further comprise collagen, where the relative amounts of collagen and ceramic matrix at least partly determine the physical properties of implants formed by injecting the compositions. The fluid carrier is an aqueous buffered medium, typically including an organic polymer base material when there is no collagen present in the composition. The compositions are particularly suitable for repair and augmentation of soft and hard tissues by injection.Type: GrantFiled: August 2, 1993Date of Patent: October 4, 1994Assignee: Collagen CorporationInventors: Donald G. Wallace, Hugh McMullin, George Chu
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Patent number: 5344855Abstract: A flame-retardant consisting of two specified components and a flame-retardant resin composition having the flame-retardant blended with a thermoplastic resin are provided,which flame-retardant is composed of (A) a reaction product of cyanuric chloride with a diamine and (B) ammonium polyphosphate or polyphosphoric acid amide, the ratio of (A) to (B) being 0.1 to 10, and which flame-retardant resin composition has the flame-retardant blended with a thermoplastic resin in a quantity of 1 to 50% by weight based upon the weight of the composition.Type: GrantFiled: July 2, 1993Date of Patent: September 6, 1994Assignee: Chisso CorporationInventors: Noriaki Narita, Masuo Iwata, Kouji Inoue, Hideo Sato, Ryoji Takahashi
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Patent number: 5342395Abstract: A load-bearing, bioabsorbable surgical repair device manufactured from a copolymer having a plurality of first linkages of lactide or lactide/glycolide, and a plurality of second linkages of a polymer having a glass transition temperature below ambient temperature. The second linkages preferably are selected from: 1,3-dioxan-2-one; 1,4-dioxan-2-one; and .epsilon.-caprolactone.Type: GrantFiled: January 13, 1992Date of Patent: August 30, 1994Assignee: American Cyanamid Co.Inventors: Peter K. Jarrett, Donald J. Casey, Louis Rosati
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Patent number: 5338772Abstract: The invention relates to an implant material which is based on a composite material of calcium phosphate ceramic particles and bioabsorbable polymer, in which the proportion of calcium phosphate ceramic particles is at least 50% by weight and the particles are joined to one another by polymer bridges to give a three-dimensional open-pore structure in which the particle surfaces are covered with polymer to the extent of not more than 50%. This implant material is distinguished by particularly favorable growing-in and healing-in properties.Type: GrantFiled: June 22, 1992Date of Patent: August 16, 1994Assignee: Merck Patent Gesellschaft mit beschrankter HaftungInventors: Hans-Jorg Bauer, Gerd Bauer, Elvira Dingeldein, Helmut Wahlig
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Patent number: 5338787Abstract: A new group of pentaerythryl diphosphonates and poly(pentaerythryl diphosphonates) are described. Flame-retardant compositions are also described, which include a thermoplastic polymer and a certain amount of self-extinguishing agent consisting of one of the above-mentioned pentaerythryl diphosphonates or poly(pentaerythryl diphosphonates).Type: GrantFiled: November 9, 1993Date of Patent: August 16, 1994Assignee: Enichem Synthesis, S.p.A.Inventors: William Giroldini, Gianluigi Landoni, Antonio Rinaldi, Carlo Neri
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Patent number: 5331030Abstract: Polymeric compositions with good flame self-extinguishing characteristics, ased on thermoplastic polymers or polymers with elastomeric properties, especially olefinic polymers or copolymers, comprising:a) from 90 to 40 parts by weight of a thermoplastic polymer or a polymer with elastomeric properties;b) from 6 to 33 parts by weight of one or more ammonium or amine phosphates and/or phosphonates;c) from 4 to 27 parts by weight of one or more salts of 2,4,6-triamino-1,3,5-triazine derivatives with cyanuric acid, of general formula (I): ##STR1##Type: GrantFiled: December 1, 1992Date of Patent: July 19, 1994Assignee: Minstero dell `Universita` e della Ricerca Scientifica e TechnologicaInventors: Roberto Cipolli, Roberto Oriani, Gilberto Nucida, Enrico Masarati
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Patent number: 5314938Abstract: Amelinic compounds of general formula (I) ##STR1## obtained by subsequent condensation reaction of 1 mol of a cyanuric acid lide with 1 mol of amine and of a polyamine and by hydrolysis reaction of the thus obtained intermediate. Compounds of general formula (I) are used, in particular, as antiflame additives.Type: GrantFiled: February 10, 1993Date of Patent: May 24, 1994Assignee: Ministereo Dell'Universita' E Della Ricerca Scientifica E TechnologicaInventors: Roberto Cipolli, Gilberto Nucida, Enrico Masarati, Roberto Oriani, Mario Pirozzi
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Patent number: 5304577Abstract: Medical or dental hardening compositions of the present invention comprise calcium phosphate type devitrification glass-ceramics powder containing apatite and/or calcium phosphate ceramics and a liquid component. The second medical or dental hardening compositions of the present invention comprise strontium phosphate type devitrification glass-ceramics powder containing strontium-apatite crystals and/or calcium strontium phosphate ceramics, or calcium strontium phosphate type devitrification glass-ceramics powder and a liquid component.Type: GrantFiled: May 1, 1992Date of Patent: April 19, 1994Assignees: Onoda Cement Co., Ltd., Sankin Kogyo Kabushiki KaishaInventors: Norifumi Nagata, Takayuki Yogoro, Sadayuki Yuhda, Masahiko Ueda
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Patent number: H1600Abstract: Phillips' process high density polyethylene resin compositions having improved processing stability are obtained using a combination of stabilizers comprised of a hindered phenol and a phosphite compound having three cyclic phosphite moieties linked via a nitrogen atom. More specifically, the phosphite compound is 2, [[2,4,8,10-tetrakis(1,1-dimethylethyl)dibenzo[d,f][1,3,2]-dioxaphosphepin- 6-yl]oxy]-N,N-bis [2-[[2,4,8,10-tetrakis (1,1-dimethylethyl) dibenzo[d,f][1,3,2]dioxaphosphenpin-6-yl]oxy]-ethyl]ethanamine. With the HDPE compositions stabilized in accordance with the invention, it is possible to eliminate undesirable rapid changes in melt viscosity which can occur when Phillips' process HDPE resins are processed under conditions of high shear.Type: GrantFiled: March 27, 1995Date of Patent: October 1, 1996Assignee: Quantum Chemical CompanyInventors: Stephen M. Imfeld, Daryl L. Stein