Antimony Containing (sb) Patents (Class 106/455)
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Patent number: 5672201Abstract: A process for preparing a structured composite pigmentary material comprises forming a dispersion of uncoated particles of titanium dioxide at a pH value at which the particles have a surface charge and subjecting the dispersion to cross-flow filtration until the dispersion contains more than 50% by weight titanium dioxide. The concentrated dispersion is mixed with a dispersion of chemically distinct particles having a surface charge of opposite sign under conditions which ensure that the sign of the surface charge on either of the particulate materials is not reversed. In the resultant composite pigmentary material the titanium dioxide particles are held in association with the chemically distinct particles as a result of said surface charges.Type: GrantFiled: March 5, 1996Date of Patent: September 30, 1997Assignee: Tioxide Group Services LimitedInventors: Leslie Ainsley Simpson, Keith Robson, David Trevor Knight, Ronald Brown
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Patent number: 5569413Abstract: A process for producing crystallites comprising silica and antimony containing tin oxide. The quantity of antimony within the tin oxide can be reduced, thereby permitting production a powder which is absent a blue coloration.Type: GrantFiled: February 3, 1995Date of Patent: October 29, 1996Assignee: E. I. Du Pont de Nemours and CompanyInventor: Howard W. Jacobson
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Patent number: 5554215Abstract: A composite particulate pigmentary material is disclosed which comprises an association of at least two chemically distinct materials in which the particles of one material carry a positive surface charge and the particles of the second material carry a negative surface charge and particles are held in association as a result of these surface charges. Also disclosed is a method for preparing composite particulate pigmentary material comprising forming aqueous dispersions of two particulate materials under conditions in which the surface charges of the particles of the two materials are of different signs and mixing the dispersions. Typical materials useful for preparing the composite include inorganic pigments, fillers and extenders and organic polymeric microspheres. The product is useful as a pigment in, for example, paints, inks, paper and plastics.Type: GrantFiled: June 7, 1995Date of Patent: September 10, 1996Assignee: Tioxide Specialties LimitedInventors: Leslie A. Simpson, John Robb, Jonathan Banford, Paul F. Dietz, John Temperley
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Patent number: 5534056Abstract: Radiation-absorptive materials, suitable for fabrication into packages, sheets, inks, paints, decorative surface treatments, lotions, creams, and gels are disclosed. The materials exploit certain optical properties associated with uniform, spherical, nanosize particles to provide complete radiation absorption, over a selected bandwidth, at low concentration. One type of particle exhibits an "absorption edge" at a chosen wavelength, transmitting radiation whose wavelength exceeds the characteristic bandgap wavelength, while effectively absorbing all radiation with wavelengths smaller than that minimum. Another type of particle exhibits "optical resonance," which causes radiation of a characteristic wavelength to interact with the particles so as to produce self-reinforcing internal reflections that strongly enhance the amplitude of the radiation trapped within the particle.Type: GrantFiled: October 28, 1993Date of Patent: July 9, 1996Assignee: Manfred R. KuehnleInventors: Manfred R. Kuehnle, Hermann Statz
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Patent number: 5527386Abstract: Radiation-absorptive materials, suitable for fabrication into packages, sheets, inks, paints, decorative surface treatments, lotions, creams, and gels are disclosed. The materials exploit certain optical properties associated with uniform, spherical, nanosize particles to provide complete radiation absorption, over a selected bandwidth, at low concentration. One type of particle exhibits an "absorption edge" at a chosen wavelength, transmitting radiation whose wavelength exceeds the characteristic bandgap wavelength, while effectively absorbing all radiation with wavelengths smaller than that minimum. Another type of particle exhibits "optical resonance," which causes radiation of a characteristic wavelength to interact with the particles so as to produce self-reinforcing internal reflections that strongly enhance the amplitude of the radiation trapped within the particle.Type: GrantFiled: November 18, 1994Date of Patent: June 18, 1996Assignee: Manfred R. KuehnleInventor: Hermann Statz
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Patent number: 5501724Abstract: A coating composition for the attenuation of the reflection electromagnetic radiation and particularly electromagnetic radiation have a wavelength of greater than 800 nm including the near infrared is described. The composition comprises a chromophore capable of absorbing up to about 95% of the electromagnetic radiation having a wavelength greater than 800 nm. Optionally, the composition may comprise microbeads that serve the purpose of also scattering the electromagnetic radiation.Type: GrantFiled: June 16, 1994Date of Patent: March 26, 1996Inventor: Howard Loff
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Patent number: 5500043Abstract: The object of the present invention is to provide a lustrous pigment free from the defects of conventional platelike or flaky iron oxide pigments that a mechanical strength is poor, adjustable colors are restricted and that a pigment lustrous is weak even if colors can adjusted variously and a method of producing the same. The present invention relates to a flaky iron oxide lustrous pigment having a hematite structure characterized by containing at least one of the elements selected from Zn, Sb and Sn and Al in solid solution and its platelike crystal having an average thickness of 0.8 .mu.m or more, preferably the content of at least one of the elements selected from Zn, Sb and Sn being in the range of 0.05 to 0.5 weight % as oxides and the content of Al being in the range of 0.5 to 3 weight % as Al.sub.2 O.sub.3.Type: GrantFiled: June 7, 1995Date of Patent: March 19, 1996Assignee: Titan Kogyo Kabushiki KaishaInventors: Hidefumi Harada, Takanori Yamasaki, Eizi Sadanaga, Teruyoshi Okazaki
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Patent number: 5476613Abstract: A process for producing crystallites comprising silica and antimony containing tin oxide. The quantity of antimony within the tin oxide can be reduced, thereby permitting production a powder which is absent a blue coloration.Type: GrantFiled: March 25, 1994Date of Patent: December 19, 1995Assignee: E. I. du Pont de Nemours and CompanyInventor: Howard W. Jacobson
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Patent number: 5376307Abstract: A coating composition of a perfluorocarbon resin and an electroconductive double shell pigment comprising inner shells of amorphous silica or a silica-containing material and outer shells of antimony-containing tin oxide is useful on a copy roller or belt.Type: GrantFiled: September 3, 1993Date of Patent: December 27, 1994Assignee: E. I. Du Pont de Nemours and CompanyInventors: Minori Hagiwara, Kenji Kiwa, Laurence W. McKeen
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Patent number: 5366545Abstract: A coating composition comprising an organosilicon compound and modified stannic oxide - zirconium oxide composite colloidal particles which are obtained by partially or fully coating the surface of stannic oxide - zirconium oxide composite colloidal particles with tungstic oxide - stannic oxide composite colloidal particles. The formed cured coating film is excellent in hot water resistance, and light-resistance and weathering resistance are not impaired even when the antireflection film made by vepor deposition of inorganic oxides is applied on the cured coating film.Type: GrantFiled: July 7, 1993Date of Patent: November 22, 1994Assignees: Hoya Corporation, Nissan Chemical Industries, Ltd.Inventors: Eiichi Yajima, Yoshitane Watanabe, Keitaro Suzuki, Tetsunori Matsukura
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Patent number: 5364566Abstract: A method for preparing a substantially white electroconductive powders by applying a surface coating comprising a two-dimensional network of antimony-containing tin oxide to amorphous silica or silica coated particles.Type: GrantFiled: February 12, 1993Date of Patent: November 15, 1994Assignee: E. I. Du Pont de Nemours and CompanyInventor: Howard W. Jacobson
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Patent number: 5358560Abstract: Solid form additive systems which are dispersible in aqueous media are disclosed, as are methods for preparing such additive systems. The additive systems are dry, free-flowing particulate materials that contain at least one additive component, at least one tackifying agent, and at least one surfactant.Type: GrantFiled: October 4, 1991Date of Patent: October 25, 1994Assignee: Eastman Chemical CompanyInventors: Brenda J. Hitch, Mahendra K. Sharma, Leo P. Voetgli
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Patent number: 5336312Abstract: This invention relates to colorants represented by the formulaBi.sub.2 A.sub.x-1 D.sub.x O.sub.ywherein: A is selected from the group consisting of Bi, Ba, Sr, Ca, Y, La, or a mixture of two or more thereof; D is selected from the group consisting of V, Mo, Mn, Ti, Ta, Nb, W, Sb, Fe, Cr, Sn, Ce, or a mixture of two or more thereof; x is a number that is at least 1; and y is the number of oxygens needed to fulfill the valence requirements of Bi, A and D; with the proviso that when A is Bi, D is other than a mixture consisting of V and Mo. These colorants are useful in providing colored compositions including: organic compositions such as plastics, rubbers, and the like; inorganic compositions such as ceramics, porcelain enamels, and the like; and coating compositions such as paints, printing inks, and the like; etc. The invention also provides for processes for making such colorants and for making such colored compositions. The invention also provides for such colorants in the form of particulate solids (e.g.Type: GrantFiled: May 10, 1993Date of Patent: August 9, 1994Assignee: Ferro CorporationInventors: Christine J. Byrne, Robert P. Blonski, John J. Welch
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Patent number: 5320781Abstract: There is disclosed an electrically conductive pigment containing 20 to 95% by weight of a component A comprising one or more conductive platelet-like pigments and 5 to 80% by weight of a component B comprising one or more conductive needle-shaped or fibrous pigments.Type: GrantFiled: April 16, 1993Date of Patent: June 14, 1994Assignee: Merck Patent Gesellschaft mit beschrankter HaftungInventors: Otto Stahlecker, Manfred Thon, Ralf Glausch, Gerhard Pfaff, Manfred Kieser, Wilhelm Gobel
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Patent number: 5308394Abstract: Disclosed are a pigment including a light-transparent ceramic scaly substrate, a tin compound layer coated on a surface of the substrate in an amount of 0.6 to 0.75% by weight with respect to the substrate, the amount being converted into metallic tin, a rutile type titanium dioxide layer formed on a surface of the substrate coated with the tin compound, a metal compound layer coated on a surface of the titanium dioxide layer in an amount of 0.15 to 0.6% by weight with respect to the substrate, metal of the metal compound being at least one selected from the group consisting of Bi, Sb, As, Cd, Zn, Mn, Pb and Cr, and the amount being converted into metal, and metallic glossy dots formed on the surfaces in a scattering manner, the metallic glossy dots occupying 0.05 to 95% of a total surface area of the surfaces, and a process for producing the same.Type: GrantFiled: August 20, 1992Date of Patent: May 3, 1994Assignee: Toyota Jidosha Kabushiki KaishaInventors: Taketoshi Minohara, Hiroshi Ito, Junichi Handa, Yuji Tanaka
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Patent number: 5296168Abstract: An electroconductive powder composition of antimony-containing tin oxide with an outer layer of hydrous metal oxide having an isoelectric point in the range from about 5 to 9.Type: GrantFiled: December 19, 1990Date of Patent: March 22, 1994Assignee: E. I. Du Pont de Nemours and CompanyInventor: Howard W. Jacobson
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Patent number: 5248337Abstract: A stable lead chromate pigment composition comprising a lead chromate pigment which has been treated by forming a continuous amorphous silica encapsulation on the surface of each particle of the pigment and subsequently depositing an antimony compound on the silica encapsulation and the process for producing the same.Type: GrantFiled: April 10, 1991Date of Patent: September 28, 1993Assignee: Toho Ganryo Kogyo Co., Ltd.Inventors: Hiroyuki Matsubara, Takashi Shigematsu, Kazuo Konno, Minoru Yokoyama
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Patent number: 5190583Abstract: An aqueous coating composition is provided which reflects light, especially UV radiation, and can be colored as desired. It is prepared from a synthetic resin dispersion and inorganic pigments having a particle size ranging between 7 and 10 nm, with the exception of carbon black.Type: GrantFiled: June 24, 1992Date of Patent: March 2, 1993Assignee: Transfer-Electric Gesellschaft FurInventors: Tankred Menzel, Hermann Nickel
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Patent number: 5190586Abstract: Disclosed are pigment composite particles which are superior in water resistance, weather resistance, thermal stability and hardness. The pigment composite particles are prepared by suspension-polymerizing an aqueous suspension comprising(a) a pigment paste comprising pigment and a pigment grinding resin having a hydrophilic group of at least 0.2 mmol/g,(b) a polymerizable monomer and(c) a polymerization initiator.Type: GrantFiled: November 28, 1990Date of Patent: March 2, 1993Assignee: Nippon Paint Co., Ltd.Inventors: Katsumi Mizuguchi, Masanori Ohiwa, Keizou Ishii, Shinichi Ishikura
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Patent number: 5188667Abstract: An aqueous sol of colloidal particles of tungstic oxide (WO.sub.3)-stannic oxide (SnO.sub.2) composite having a particle size of from 2 to 7 millimicrons is prepared by blending an aqueous solution of tungstic acid and an aqueous solution of an stannate in a weight ratio of from 0.5 to 100 as WO.sub.3 /SnO.sub.2. Where the WO.sub.3 -SnO.sub.2 composite sol in an amount of from 2 to 100 parts by weight as the total of WO.sub.3 and SnO.sub.2 is blended with a sol of a 3- to 5 valent metal oxide having a particle size of from 4 to 50 millimicrons in an amount of 100 parts by weight as the metal oxide, a modified metal oxide sol of colloidal particles having a size of 4.5 to 60 millimicrons as surface-coated with the tungstic oxide (WO.sub.3)-stannic oxide (SnO.sub.5) composite colloidal particles is prepared.Type: GrantFiled: November 21, 1991Date of Patent: February 23, 1993Assignee: Nissan Chemical Industries, Ltd.Inventors: Yoshitane Watanabe, Keitaro Suzuki
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Patent number: 5164005Abstract: A black manganese/iron oxide pigment having a spinel structure and having the composition Mn.sub.x Fe.sub.3-x O.sub.4 wherein x has a value from 0.1 to 0.9, is prepared by the steps:a) oxidizing iron(II) salts or mixtures of iron(II) salts and manganese(II) salts, in solution or after reaction with alkaline precipitants, with manganese dioxide or other compounds containing manganese in high valency,b) additionally oxidizing the salts of (a) to establish an Fe(III) content therein with another oxidizing agent, andc) filtering, washing, drying and grinding the pigment;and the pigment is useful for pigmenting building materials to a black color.Type: GrantFiled: March 18, 1992Date of Patent: November 17, 1992Assignee: Bayer AktiengesellschaftInventors: Peter Kuske, Gunter Buxbaum
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Patent number: 5160374Abstract: A semi-insulating coating or surface layer is applied over insulating materials such as a circuit board or wiring harness or feedthrough insulator. The paint is electrically fixed to ground and as a result leaks away charge buildup before large pulse discharges occur. For example, pure tin oxide particles in phenoxy resin binder forms a paintable application for the invention.Type: GrantFiled: July 24, 1990Date of Patent: November 3, 1992Assignee: The United States of America as represented by the Secretary of the Air ForceInventors: Arthur R. Frederickson, Joseph E. Nanevicz, Jeffrey S. Thayer, Dean B. Parkinson
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Patent number: 5094691Abstract: An aqueous sol of colloidal particles of tungstic oxide (WO.sub.3)-stannic oxide (SnO.sub.2) composite having a particle size of from 2 to 7 millimicrons is prepared by blending an aqueous solution of tungstic acid and an aqueous solution of a stannate in a weight ratio of from 0.5 to 100 as WO.sub.3 /SnO.sub.2. Where the WO.sub.3 --SnO.sub.2 composite sol in an amount of from 2 to 100 parts by weight as the total of WO.sub.3 and SnO.sub.2 is blended with a sol of a 3- to 5 valent metal oxide having a particle size of from 4 to 50 millimicrons in an amount of 100 parts by weight as the metal oxide, a modified metal oxide sol collidal particles having a size of 4.5 to 60 millimicrons as surface-coated with the tungstic oxide (WO.sub.3)-stannic oxide (SnO.sub.5) composite colloidal particles is prepared.Type: GrantFiled: October 30, 1990Date of Patent: March 10, 1992Assignee: Nissan Chemical Industries, Ltd.Inventors: Yoshitane Watanabe, Keitaro Suzuki
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Patent number: 5021091Abstract: A hard coating composition comprising an organic silicon compound and inorganic submicron particles such as silica sol and antimony oxide sol is improved in curing properties and shelf stability by blending aluminum perchlorate as the curing catalyst.Type: GrantFiled: January 16, 1990Date of Patent: June 4, 1991Assignee: Shin-Etsu Chemical Co., Ltd.Inventors: Mitsuhiko Takarada, Kazuharu Sato, Kenji Yamamoto, Shigeru Mori
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Patent number: 5007963Abstract: A process for the preparation of lead molybdate pigments containing lead chromate, lead sulfate and lead molybdate, which comprises preparing the lead molybdate pigments by reacting an aqueous solution of a lead salt with an aqueous solution containing chromate, molybdate and sulfate salts or with an aqueous solution of each of said salts using 2 to 5 mol % of lead molybdate seed crystals, based on the total molar amount of lead chromate, lead sulfate and lead molybdate. The lead molybdate pigments so obtained are strong and are highly suitable for coloring organic materials of high molecular weight.Type: GrantFiled: October 17, 1988Date of Patent: April 16, 1991Assignee: Ciba-Geigy CorporationInventors: Leonardus J. H. Erkens, Gerben P. Algra, Herman J. J. M. Geurts, Hubertus P. A. Gielkens
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Patent number: 5008036Abstract: A colloidal dispersion of hydrous antimony pentoxide particles is made by a process which comprises introducing a particulate antimony component selected from the group consisting of antimony metal and antimony trioxide into an essentially aqueous medium and contacting said antimony component with hydrogen peroxide at a temperature of from about 0.degree. C. to about the decomposition temperature of the reaction mixture for a length of time sufficient to convert at least a portion of the antimony component to colloidal particles of hydrous antimony pentoxide.Type: GrantFiled: August 18, 1975Date of Patent: April 16, 1991Assignee: Laurel Industries, Inc.Inventors: Charles E. Crompton, Abdulla M. Z. Kazi, Inderjit S. Soni
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Patent number: 4990473Abstract: Zirconyl phosphate ceramics having high strength and high heat shock resistance, which consist essentially of at least 99% by weight of zirconyl phosphate, zirconium phosphates or both and no other phase material in quantities of more than 1% by weight are useful in ceramic filters and ceramic internal combustion engine parts and are prepared by mixing zirconyl phosphate or substances which form zirconyl phosphate with an antimony compound, moulding the resulting mixture and then sintering the moulded mixture at temperatures of 1200.degree. to 1700.degree. C.Type: GrantFiled: June 12, 1989Date of Patent: February 5, 1991Assignee: Bayer AktiengesellschaftInventors: Ernst Gugel, Isfried Petzenhauser
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Patent number: 4844741Abstract: Thermostable rutile mixed phase pigments of the ternary system titanium, antimony and chromium contain from 0.1 to 2.0% by weight of magnesium.Type: GrantFiled: April 20, 1988Date of Patent: July 4, 1989Assignee: Lacke & Farben AktiengesellschaftInventors: Helmut Knittel, Roland Bauer, Egon Liedek, Guenter Etzrodt