Glass Particles Or Spheres Patents (Class 428/406)
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Patent number: 5932361Abstract: A method of preparing a membrane is disclosed, which includes the step of impregnating an inorganic proton-conductive material into matrices of porous ceramic membranes. The inorganic proton-conductive material may include an inorganic poly-acid, such as polyphosphates or poly-antimonic acids. The inorganic proton conducting material may include Zr (zirconium).The invention further provides a porous ceramic membrane, which includes an inorganic proton-conductive material impregnated into a porous ceramic membrane matrix.The ceramic membrane may be a tubular ceramic membrane, which includes pores with a diameter of at least 0.3 .mu.m, and depositions of electroconductive coatings onto its surface on which externally applied potential can be applied as a driving force for hydrogen separation.Type: GrantFiled: October 17, 1997Date of Patent: August 3, 1999Inventors: Vladimir Nikolaevich Belyakov, Vladimir Mikhailovich Linkov
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Patent number: 5922608Abstract: A method, apparatus and article for sequencing polypeptides and proteins ("macromolecules") utilizes a sequencing packet comprised of a plurality of substrates having two different derivatization chemistries within a forarninous container. The sequencing packet is disposed within a reaction chamber in a cartridge assembly having an inlet and outlet. An unknown target macromolecule, and preferably a control macromolecule are bonded to the substrates. The macromolecule and control are then simultaneously sequenced. The control serves to monitor the efficacy of the sequencing process.Type: GrantFiled: July 31, 1996Date of Patent: July 13, 1999Assignee: Beckman Instruments, Inc.Inventors: Vincent R. Farnsworth, Wulf L. Carson
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Patent number: 5888290Abstract: A fluorochemical treatment composition comprises (a) a sol comprising a colloidal dispersion of substantially discrete, substantially monodisperse in size, polymer-grafted, inorganic microparticles in liquid; and (b) at least one fluorochemical. The composition can be used to impart durable water and oil repellency, stain release, and dry soil resistance to a variety of substrates.Type: GrantFiled: May 24, 1996Date of Patent: March 30, 1999Assignee: Minnesota Mining and Manufacturing CompanyInventors: Lori P. Engle, Steven J. Hamrock, Mark J. Pellerite
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Patent number: 5869724Abstract: The present invention provides asymmetric bidentate silane reagents from modifying the surface of liquid chromatography supports, the supports and methods of making and using the same. When bonded to the surface of a support material, the resulting modified support material provides improved properties, such as better separations and more stable support materials, especially when used in liquid chromatography. These bidentate silanes have the general structure: R.sub.1 SiMe(NMe.sub.2)--(CH.sub.2).sub.n --SiMeR.sub.2 (NMe.sub.2). R.sub.1 is an alkyl group having from 1 to 30 carbon atoms, and R.sub.2 is an alkyl group having from 8 to 18 carbon atoms. R.sub.1 is a different alkyl group than R.sub.2. Me is a methyl group, and n has a value 2 or 3. In certain embodiments, R.sub.2 includes at least one functional group. When reacted with a silica surface, the resulting modified surface has a structure: PSiO--?R.sub.1 SiMe--(CH.sub.2).sub.n --SiMeR!--OSiP. PSiO is a surface reacted silica.Type: GrantFiled: June 20, 1997Date of Patent: February 9, 1999Assignee: Hewlett-Packard CompanyInventors: Joseph J. Kirkland, John B. Adams, Jr.
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Patent number: 5869152Abstract: The present invention relates to silica materials and particles having surfaces which define an interior. The interior includes interior silicon atoms at least a portion of which is bonded to a substituted or unsubstituted alkyl moiety. In a preferred aspect of the present invention, the silica material also has surface silicon atoms to which are bonded substituted or unsubstituted alkyl moieties. A capillary tube coated on its inner surface with the silica material of the present invention is also disclosed. The silica materials of the present invention are resistant to degradation at high or low pH and are particularly useful as chromatographic stationary phases, especially for use in open tubular liquid chromatography and open tubular electrochromatography.Type: GrantFiled: March 1, 1996Date of Patent: February 9, 1999Assignee: The Research Foundation of State University of New YorkInventor: Luis A. Colon
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Patent number: 5866668Abstract: An object of the invention is to provide a heat curable composition having both of an excellent storage stability and low-temperature curability. The heat curable composition of this invention comprises (A) a polyisocyanate compound and an urethane prepolymer having a terminal active isocyanate group which is prepared by reacting a polyol component with an excess amount of a polyisocyanate compound, which are used each alone or in a combination threof; and (B) a fine particles-coated amine which is prepared by coating an active amino group on the surface of a solid amine having a melting point of .gtoreq.50.degree. C. and a mean particle size of .ltoreq.20 .mu.m with fine particles having a mean particle size of .ltoreq.2 .mu.m in a ratio of the solid amine/the fine particles of 1/0.001 to 0.5 by weight.Type: GrantFiled: September 27, 1996Date of Patent: February 2, 1999Assignee: Sunstar Giken Kabushiki KaishaInventors: Nobuhiko Maeda, Tatsuya Okuno, Yoshiya Hattori, Johshi Gotoh
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Patent number: 5846621Abstract: A flexible carrier tape for storage and delivery of components by an advancement mechanism, comprises a strip portion, a plurality of aligned pockets spaced along the strip portion for carrying the components, a layer of a static dissipative acrylic polymer on the strip portion, and a cover releasably, adhesively bonded to the strip portion and covering the plurality of pockets. The acrylic polymer may also be used to reduce the temperature at which the cover is bonded to the strip portion.Type: GrantFiled: September 15, 1995Date of Patent: December 8, 1998Assignee: Minnesota Mining and Manufacturing CompanyInventor: Hideki Nagamatsu
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Patent number: 5843525Abstract: By treating metal oxide fine particles having a specific surface area of 5 to 500 m.sup.2 /g with a silane coupling agent and then further treating the fine particles with a reactive group-terminated organopolysiloxane, the organopolysiloxane is stably bonded to the surface of the powder particles, to thereby improve stability of the modifying effect against the elapse of time and durability.Type: GrantFiled: February 18, 1997Date of Patent: December 1, 1998Assignee: Nippon Aersoil Co., Ltd.Inventors: Takeyoshi Shibasaki, Masamichi Murota
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Patent number: 5837356Abstract: A wiring board constructed of an integral combination of an insulating substrate including 60-95% by weight of a powder of an inorganic insulating material and 5-40% by weight of a thermosetting resin which joins the particles of the powder of an inorganic insulating material, and an insulating substrate-coating, wiring conductor which includes 70-95% by weight of a metal powder and 5-30% by weight of a thermosetting resin.Type: GrantFiled: September 20, 1996Date of Patent: November 17, 1998Assignee: Kyocera CorporationInventors: Naohiro Katori, Kiyoshi Tomita, Fujito Nakakawaji, Yoichi Sekioka, Syogo Matsuo, Koichi Uchimoto
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Patent number: 5785943Abstract: Hydrogen peroxide is produced by a process which uses solid, insoluble, supported anthraquinone as catalyst. The supported anthraquinone is converted to supported anthrahydroquinone utilizing soluble reducing agentsor by hydrogenation with a hydrogen-donating organic substrate such as an alcohol, followed by reaction with oxygen, to regenerate anthraquinone and to form hydrogen peroxide, which can be solvent extracted from the solid catalyst.Type: GrantFiled: October 14, 1994Date of Patent: July 28, 1998Inventors: James E. Guillet, Gad Friedman
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Patent number: 5773121Abstract: A syntactic structural foam product in flat sheet form or curved three-dimensional form adaptable to such uses as a light weight structural core for composite laminates, is made of a mixture of hollow ceramic microspheres and dry resin powder, of either thermosetting or a high-temperature thermoplastic resin, distributed in the interstices of the mass of microspheres for integration of the mixture into desired form upon heating and cooling. The dry resin powder in another embodiment of the invention includes unexpanded expandable powder which will expand into microballoons in the confined spaces in which they reside and effect a bonding relation with surrounding particles upon supply of heat to the mixture. The foam product is produced by thoroughly intermixing and depositing the mixture as a layer over a surface having a release agent thereover within a dimension defined region.Type: GrantFiled: December 19, 1996Date of Patent: June 30, 1998Assignee: Isorca Inc.Inventors: Charles L. Meteer, Thomas E. Philipps
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Patent number: 5770918Abstract: Electroconductive frit includes glass (14) having a low melting point and a filler of fine glass particles (12) coated on the surface with metal(13). The electroconductive frit is used for bonding a spacer to an electron source substrate and a face plate in an image-forming apparatus to ensure mechanical securing strength and electrical connection.Type: GrantFiled: January 11, 1996Date of Patent: June 23, 1998Assignee: Canon Kabushiki KaishaInventors: Shinichi Kawate, Kazuhiro Ohki
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Patent number: 5753371Abstract: A pearlescent pigment consists essentially of C glass flakes having a layer comprising rutile titanium dioxide or iron oxide thereon. A hydrous layer of the rutile forming titanium dioxide or iron oxide is formed on the glass flakes and the resulting coated flakes are calcined.Type: GrantFiled: June 3, 1996Date of Patent: May 19, 1998Assignee: The Mearl CorporationInventors: William J. Sullivan, Patricia Elliot, Dana Fleming
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Patent number: 5750249Abstract: Composite particles suitable as conductive filler for electrically conductive compositions which can be used as gaskets, caulking and plastics, for example. The compositions are, useful as EMI shielding and electrostatic charge dissipation materials. Methods of making and using the foregoing are also covered.Type: GrantFiled: February 5, 1993Date of Patent: May 12, 1998Assignee: Potters Industries, Inc.Inventors: James F. Walther, Robert J. Teichmann, Andrew M. Wasowicz
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Patent number: 5738936Abstract: A thermally conductive article comprises a polytetrafluoroethylene matrix, an elastomer interpenetrating the polytetrafluoroethylene matrix, thermally conductive particles, and expanded polymeric particles. The thermally conductive article is compressible and has good thermal conductivity under compression.Type: GrantFiled: June 27, 1996Date of Patent: April 14, 1998Assignee: W. L. Gore & Associates, Inc.Inventor: James R. Hanrahan
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Patent number: 5725935Abstract: The present invention discloses signage articles having a layer of fused dry toner powder which is fused by employing a tacky pressure-sensitive adhesive and low compression. Suitable tacky pressure-sensitive adhesives include alkyl acrylate polymers or copolymers, alkyl vinyl ether polymers or copolymers, polyisobutylene, polybutadiene, and butadiene-styrene copolymers. Such signage articles further comprise a transparent cover layer disposed over the fused dry toner powder-bearing surface. Also disclosed are methods of forming signage articles, one method comprising the steps of applying dry toner powder to a first substrate surface, applying a composition including a tacky pressure-sensitive adhesive to a second substrate surface, and laminating the two substrates to admix the dry toner powder and the tacky pressure-sensitive adhesive. Either the first or second substrate may be the transparent cover layer of the resulting signage article.Type: GrantFiled: September 26, 1996Date of Patent: March 10, 1998Assignee: Minnesota Mining and Manufacturing CompanyInventor: J. Sundar Rajan
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Patent number: 5709715Abstract: The silicon or silica substrates described have a modified surface of a new type occupied by the alcohol fraction of an orthoester. The alcohol fraction may be saturated or unsaturated. The surface of the substrate is modified by being treated with an orthoester, the water being eliminated from the surface by hydrolysis and then replaced by the resulting alcohol or silylether. Besides many other compounds, new orthoesters having the formula R.sup.1 C?OCH.sub.2 --CH.sub.2 --O--CO--CH.dbd.CH.sub.2 !.sub.3, in which R.sup.1 stands for hydrogen or for a clearable organic residue, R stands for (CH.sub.2).sub.n, in which n stands for an integer between 1 and 18, and new orthoesters having the formula (I), are particularly appropriate. In the formula (I), R.sup.1 stands for hydrogen or an organic residue, R.sup.3 stands for hydrogen or an alkyl group with 1 to 6 carbon atoms; and R.sup.4 stands for hydrogen, an alkyl group or an alkyl group or a phenyl group.Type: GrantFiled: May 19, 1994Date of Patent: January 20, 1998Assignee: Owens-Corning Fiberglas Technology Inc.Inventors: Bruno Guidotti, Walter Caseri, Ulrich Suter, Wolfgang Saur
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Patent number: 5707440Abstract: A finely divided inorganic filler material is a sintered composite which consists of larger macro-filler particles of glass and of smaller micro-filler particles of glass or ceramics partially covering the macro-filler particle and firmly connected to it by sintering. Plastic materials reinforced with the filler are distinguished by improved abrasion resistance.Type: GrantFiled: October 7, 1994Date of Patent: January 13, 1998Assignee: Heraeus Kulzer GmbHInventors: Xu Hengchang, Joachim Nagel
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Patent number: 5702518Abstract: Gold pigments of high opacity and processes for their preparation and use.Type: GrantFiled: June 21, 1996Date of Patent: December 30, 1997Assignee: Merck Patent Gesellschaft mit ceschrankter HaftungInventors: Reiner Vogt, Klaus Bernhard, Gerhard Pfaff
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Patent number: 5698327Abstract: Zinc-compatible silica particulates, useful for the formulation of a wide variety of improved dentifrice compositions, have an effective compatibilizing amount of zinc values chemically bonded to surface area sites of the particles.Type: GrantFiled: September 27, 1994Date of Patent: December 16, 1997Assignee: Rhone-Poulenc ChimieInventor: Jacques Persello
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Patent number: 5691059Abstract: A composite bubbles comprising a silicate glass bubble or a bubble of silicate glass-ceramic having an aluminum nitride coating thereon; and a method of making the same. In another aspect, composite articles (electronic substrate materials) having the composite bubbles therein are disclosed.Type: GrantFiled: November 21, 1995Date of Patent: November 25, 1997Assignee: Minnesota Mining and Manfacturing CompanyInventor: Kyung H. Moh
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Patent number: 5686182Abstract: A carrier comprised of a core with a coating thereover comprised of at least one polymer resin and at least one fibrillated or non-fibrillated fibrous carbon additive, and wherein the outer surface of the coated carrier is fibrillated.Type: GrantFiled: September 28, 1995Date of Patent: November 11, 1997Assignee: Xerox CorporationInventor: Deepak R. Maniar
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Patent number: 5683844Abstract: A carrier comprised of a core with a coating thereover comprised of at least one polymer resin and wherein the outer surface of the coated carrier is fibrillated.Type: GrantFiled: September 28, 1995Date of Patent: November 4, 1997Assignee: Xerox CorporationInventor: Joseph Mammino
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Patent number: 5683802Abstract: The disclosed oriented, multilayer olefin polymer film comprises an olefin polymer base layer and at least one outer layer, which outer layer contains from 0.01 to 1% by weight, based on the weight of the outer layer, of approximately spherical ceramic particles. The outer layer can be heat-sealable or non-heat-sealable. The multilayer olefin polymer film is produced by a coextrusion process in which the coextruded film is biaxially stretched, heat-set, and optionally surface-treated. The resulting film is useful in packaging and as a printing surface or in laminates.Type: GrantFiled: March 16, 1995Date of Patent: November 4, 1997Assignee: Hoechst AktiengesellschaftInventors: Ursula Murschall, Herbert Peiffer, Gunter Schloegl
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Patent number: 5677034Abstract: Disclosed is a biaxially oriented, laminated polyester film having a lamination structure with at least two layers. At least one of the outermost layers of the film is a thin laminated layer A having a thickness of not more than 3 .mu.m. In the layer A, internally formed particles and specified agglomerated particles or mono-dispersed particles are present, or the mono-dispersed particles are present at a very small content. When the polyester film is used as a base film for magnetic recording media, the abrasion resistance of the film surface at a high speed can be greatly increased.Type: GrantFiled: October 11, 1995Date of Patent: October 14, 1997Assignee: Toray Industries, Inc.Inventors: Iwao Okazaki, Tohru Miyake, Koichi Abe, Keisuke Ohshima
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Patent number: 5670258Abstract: Fluoroaluminosilicate dental cement glasses are treated with an aqueous silanol treating solution and optionally with an additional organic compound. The treated glasses form cements with improved strength. The silanol can be ethylenically-unsaturated and can contain acidic groups, and, if so, is novel in its own right.Type: GrantFiled: June 2, 1995Date of Patent: September 23, 1997Assignee: Minnesota Mining and Manufacturing CompanyInventors: Sumita B. Mitra, Scott R. Culler, Bing Wang
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Patent number: 5665472Abstract: There is provided a thermal transfer sheet comprising: a substrate film; and a hot-melt ink layer provided on one side of the substrate film, the hot-melt ink layer containing a bismuth oxide/borosilicate glass frit having a softening point of 400.degree. to 500.degree. C.Type: GrantFiled: August 23, 1996Date of Patent: September 9, 1997Assignee: Dai Nippon Printing Co., Ltd.Inventors: Konosuke Tanaka, Keiichi Ogawa
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Patent number: 5658548Abstract: The present invention provides compositions and methods for isolating nucleic acids with lengths greater than about 50 bases, from cells, gels, solutions and other media, in which nucleic acids occur in vivo or in vitro. The compositions of the invention are mixtures of the silica materials silica gel and glass particles, particularly glass microfibers; such mixtures combined with chaotropic salts, such as guanidinium chloride or guanidinium thiocyanate; and suspensions of such mixtures in aqueous solutions of chaotropic salts. In the methods of the invention, an aqueous solution comprising nucleic acid is mixed with an aqueous solution of chaotropic salts and the resulting solution is contacted with a mixture of the silica materials, whereupon the nucleic acid in the solution binds to the silica materials. The chaotropic salts and components, other than the nucleic acid adsorbed to the silica materials, from the aqueous solution treated by the method of the invention are washed from the silica materials.Type: GrantFiled: June 7, 1995Date of Patent: August 19, 1997Assignee: Promega CorporationInventors: Vikas V. Padhye, Chuck York, Adam Burkiewicz
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Patent number: 5658656Abstract: A method of using a material as an acoustical barrier in an ambient medium. The material comprises microbubbles having average outer diameters of 5 to 150 microns, bound together at their contact points. The material is characterized by either a porosity of 20 to 60 percent, or by voids between the microbubbles which have characteristic diameter within an order of magnitude of the viscous skin depth of the ambient medium, as calculated at 1 kHz; an air flow resistivity of 0.5.times.10.sup.4 to 4.times.10.sup.7 mks rayls/meter, and an attenuation of sound comparable to mass law performance. The microbubbles can be sintered into direct contact with each other, or one of many types of binder material can be used to support the microbubbles within a composite material.Type: GrantFiled: August 3, 1995Date of Patent: August 19, 1997Assignee: Minnesota Mining and Manufacturing CompanyInventors: Leland R. Whitney, Michael W. Dolezal, Ronald W. Gerdes, Gary N. Harvieux, Charles A. Marttila, Joseph G. Mandell, Thomas J. Scanlan
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Patent number: 5645938Abstract: A retroreflective article 10 includes retroreflective elements 12 partially embedded in a binder layer 14 that comprises a polyester polyurethane polymer. The polyurethane polymer is a reaction product of (i) a polyester polyol that contains an aromatic nucleus and has at least two isocyanate groups bonded non-conjugatively to the aromatic nucleus, and (ii) a polyisocyanate. A retroreflective article that employs a binder layer of this kind demonstrates extraordinary laundering durability under stringent wash conditions.Type: GrantFiled: September 15, 1995Date of Patent: July 8, 1997Assignee: Minnesota Mining and Manufacturing CompanyInventor: Michael D. Crandall
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Patent number: 5639550Abstract: A process for preparing a composite particulate material, comprising the steps of providing a particulate primary material having a primary softening temperature; providing a particulate support material having a support softening temperature; providing a particulate binder material having a softening temperature which is less than the primary softening temperature and the support softening temperature; mixing the primary material, the support material and the binder material so as to provide a substantially uniform mixture; and heating the mixture to a temperature greater than or equal to the softening temperature of the binder material and less than the primary softening temperature and the support softening temperature, whereby the binder material binds the primary material to the support material so as to provide a composite particulate material.Type: GrantFiled: June 21, 1995Date of Patent: June 17, 1997Assignee: Specialty Media CorporationInventor: Robert Lisenko
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Patent number: 5635299Abstract: A sliding member usable in dry and wet states includes a synthetic resin coated filler powder composition obtained by polymerizing a polyethylene based composition in the presence of a filler having a friction-reducing and/or wear-resisting property, uniformly dispersed in a matrix made of a waterproof synthetic resin, and optionally a reinforcing material as needed.Type: GrantFiled: September 30, 1994Date of Patent: June 3, 1997Assignee: Tsubakimoto Chain Co.Inventor: Kouji Tanaka
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Patent number: 5624487Abstract: Preparation of bluish luster pigments by treating titania-coated silicatic platelets with a reducing gas mixture, which comprises treating titania-coated silicatic platelets whose titania coating has a geometric layer thickness of from 10 to 60 nm at from 800.degree. to 900.degree. C. with a gas mixture comprising a vaporized organic compound and ammonia, and also bluish luster pigments based on silicatic platelets comprising a reduced titania coating with a geometric layer thickness of from 10 to 60 nm and CIELAB color coordinates -2.ltoreq.a*.ltoreq.2 and b*.ltoreq.-20 (measuring angle 20.degree., standard illuminant D65).Type: GrantFiled: March 26, 1996Date of Patent: April 29, 1997Assignee: BASF AktiengesellschaftInventors: Helmut Schmidt, Werner Ostertag, Hermann Bidlingmaier, Norbert Mronga, Juan A. G. Gomez, Claus Kaliba, Raimund Schmid, Raymond Ellinghoven
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Patent number: 5612119Abstract: A transfer for decorating surfaces comprises microspheres that are embedded about one-fourth to one-half the microsphere's diameter in a support sheet. The embedded portion of the microspheres have a reflective layer associated therewith to allow a retroreflective article that is stripped from the transfer to retroreflect light. One or more colored layers are printed imagewise one the microspheres. The color layers are prepared from a polyester resin and an isocyanate hardener. If more than one color layer is printed on the microspheres, then a two-component extender or a glue that contains a polyester is disposed on top of all the colored layers. An elastomer that contains a polyester or polyamide is then applied over either a single color layer or a multiple color layers and the extender layer or the polyester containing glue while either is still wet. The elastomer is fused into the single color layer or the extender layer or polyester containing glue and colored layers.Type: GrantFiled: December 19, 1995Date of Patent: March 18, 1997Assignee: Minnesota Mining and Manufacturing CompanyInventors: Ulf N. Olsen, Erik Franke, Eilif Strand
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Patent number: 5607763Abstract: A pressure-sensitive adhesive film, comprising a pressure-sensitive adhesive coated on the surface of a film backing, characterized in that the hardness of said film is within the range between H and 3B determined by a pencil scratch test according to JIS K 5400, and that said pressure-sensitive adhesive contains elastic microspheres with an elastic modulus ranging from 1.times.10.sup.4 to 1.times.10.sup.7 dyn/cm.sup.2.Type: GrantFiled: May 24, 1995Date of Patent: March 4, 1997Assignee: Minnesota Mining and Manufacturing CompanyInventor: Hiroshi Matsuda
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Patent number: 5604022Abstract: An antitrauma packet for supplementing that resistance to mechanical impact and to ballistic penetration of structures that are made of at least one panel of polymeric fibers. At least one layer, having a plurality of polymeric fibers with a plurality of hollow microspheres scattered therein, is attached to the at least one panel.Type: GrantFiled: February 28, 1995Date of Patent: February 18, 1997Assignee: Niltar Trading S.A.Inventor: Fernando H. Andujar
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Patent number: 5601915Abstract: Retroreflective sheeting having excellent weatherability under prolonged outdoor use, which comprises a support sheet in one side of which retroreflective glass beads are embedded as substantially a monolayer in such a manner that at least their non-reflective portions are exposed on said sheet; and a light-transmittable protective film provided on the glass beads on said support sheet, said protective film being partially fixed onto the support sheet; in which at least the surface layer of the support sheet in which the glass beads are embedded is formed of a resin composition comprising (a) thermofusible resin(s) having a glass transition temperature not higher than 50.degree. C. and (a) cellulose derivative(s) having a glass transition temperature not lower than 90.degree. C.Type: GrantFiled: March 15, 1995Date of Patent: February 11, 1997Assignee: Nippon Carbide Kogyo Kabushiki KaishaInventors: Katsura Ochi, Masaki Yoshizawa, Osamu Tanaka
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Patent number: 5593752Abstract: A boron/carbon fiber laminate comprising a boron fiber layer and a carbon fiber layer having a balanced pair of carbon fiber plies embedded in a plastic resin matrix has a Coefficient of Thermal Expansion between .+-.0.54 .mu.m/m/.degree.C., a Coefficient of Moisture Expansion between .+-.20.0 .mu.m/m/%.DELTA.M, and a specific modulus greater than 1.64.times.10.sup.6 meter. The laminate is useful for optical mounting structures.Type: GrantFiled: November 28, 1995Date of Patent: January 14, 1997Assignee: Eastman Kodak CompanyInventors: David J. Pollatta, Thomas N. Quinzi
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Patent number: 5591684Abstract: Glass bubbles for use as fillers in a plastic resin substrate of an electrical printed circuit board are light in weight, low in density, and small in alkali amount leached sufficiently to insure electrical insulation resistance of the substrate, and consist essentially of, by weight, SiO.sub.2 40.0-60.0%, Al.sub.2 O.sub.3 5.0-22.0%, B.sub.2 O.sub.3 1.0-15.0%, CaO 10.0-30.0%, BaO 0-15.0%, MgO 0-10.0%, ZnO 0-10.0%, SrO 0-10.0%, Na.sub.2 O+K.sub.2 O+Li.sub.2 O 0-1.9%, As.sub.2 O.sub.3 +Sb.sub.2 O.sub.3 0-1.54, V.sub.2 O.sub.5 0-10.0%, TiO.sub.2 0-10.0%, and SO.sub.3 0.05-1.7%.Type: GrantFiled: October 3, 1994Date of Patent: January 7, 1997Assignee: Nippon Electric Glass Co., Ltd.Inventors: Shinji Kawachi, Yoshifumi Sato, Yasuhiro Nishimura
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Patent number: 5583056Abstract: The invention relates to an aqueous suspension for diagnostic or immunodiagnostic tests, comprising non-polymer nuclei surrounded by a hydrophilic copolymer that contains functional groups, and also to a method for the preparation of this suspension. The method involves adding a monomer mixture to a colloidal dispersion of non-polymer particles, the monomer mixture being so chosen that the resultant copolymer has a charge of identical sign to that of the original dispersion. The invention also relates to a method for the detection of a specifically binding substance or immunochemically active component in a test fluid, and to a reagent and a test kit to be used when employing said detection methods.Type: GrantFiled: May 12, 1995Date of Patent: December 10, 1996Assignee: Akzo Nobel N.V.Inventor: Wilfridus M. Brouwer
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Patent number: 5580657Abstract: As an article of manufacture, a composite, which comprises in combination an inorganic material substrate, a polymeric agent which is at least partially water-soluble, and a substance binding the polymeric agent to the inorganic material substrate, such that there is a decreased tendency of the agent toward removal from the composite by an aqueous medium; and methods of making and using same.Type: GrantFiled: February 8, 1994Date of Patent: December 3, 1996Assignee: Potters Industries IncInventors: Robert A. Schleifstein, Edward Smith, Jr.
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Patent number: 5576097Abstract: High brightness durable retro-reflecting microspheres for retro-reflection and related uses (and a novel method of forming the same) is provided embodying a retro-reflective vitreous glass microsphere encapsulated in a hardened clear non-vitreous metal-oxide ceramic shell of substantially the same index of fraction as the microsphere.Type: GrantFiled: April 24, 1995Date of Patent: November 19, 1996Assignee: Brite-Line Industries, Inc.Inventor: Charles W. Wyckoff
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Patent number: 5573830Abstract: An embossed tissue having improved bulk and puffiness while being non-nesting by having a lattice pattern and at least two signature bosses. More particularly, one of the signature bosses is defined by embossments having a lower portion which is continuous and an upper portion which is defined by crenels and merlons.Type: GrantFiled: June 7, 1995Date of Patent: November 12, 1996Assignee: The James River CorporationInventor: Galyn A. Schulz
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Patent number: 5565024Abstract: The present invention relates to color luster pigments which, through the incorporation of glass formers, exhibit enhanced luster and also high color strength and transparency.Type: GrantFiled: April 21, 1995Date of Patent: October 15, 1996Assignee: Merck Patent Gesellschaft Mit Beschrankter HaftungInventor: Matthias Schraml-Marth
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Patent number: 5558933Abstract: Sheeting in the form of fibre board comprising cellulose fibres and a thermosetting resin in an amount sufficient to bond the cellulose fibres together when compressed the sheeting having a density of 1100 kg/m.sup.3 or greater. The method of manufacturing the sheeting comprises the steps of combining the cellulose fibres and thermosetting resin together and forming a mat or web, and thereafter heating and compressing the mat or web to a density of at least 1100 kg/m.sup.3.Type: GrantFiled: October 18, 1994Date of Patent: September 24, 1996Assignee: ACI International LimitedInventor: Patrick Anthony
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Patent number: 5549974Abstract: The invention provides an efficient and versatile method for the combinatorial synthesis and screening of libraries of 4-thiazolidinones, metathiazanones, and derivatives thereof. In order to expediently synthesize a combinatorial library of derivatives based upon these core structures, a general methodology for the solid phase synthesis of these derivatives is also provided. Arrays of thiazolidinones, metathiazanones, and derivatives thereof useful as peptidomimetics and for the identification of agents having antifungal, antihistaminic, or antimicrobial activity or use in the treatment of inflammation, hypertension, renal failure, congestive heart failure, uremia and other conditions can be prepared using this method.Type: GrantFiled: June 23, 1994Date of Patent: August 27, 1996Assignee: AFFYMAX Technologies NVInventor: Christopher P. Holmes
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Patent number: 5543192Abstract: The present invention is directed to a printable release composition used for pressure sensitive labels and the like. The invention is also directed to an article, such as a label, that comprises a substrate such as paper, optionally a thermal transfer primer coating coated onto the substrate and a release layer coated onto the transfer primer coating or onto the substrate. The printable release composition of the present invention may be used with labels having permanent, repositionable or removable adhesives. The particular composition of the release layer depends on the type of adhesive that is appropriate for the desired end use.Type: GrantFiled: June 7, 1995Date of Patent: August 6, 1996Assignee: Moore Business Forms, Inc.Inventors: Adele C. Shipston, David K. Rice, II
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Patent number: 5536540Abstract: A body side molding for automobiles. The molding has a rigid base and a cover which is relatively flexible with respect to the base. Covers of disclosed embodiments are of polyvinyl chloride. The base and cover snap together, the cover having retainers on its reverse face, and the base having retainers for engaging the retainers of the cover on its obverse face. The reverse face of the base is secured to a vehicle using double-sided adhesive tape.Type: GrantFiled: October 27, 1993Date of Patent: July 16, 1996Assignee: Decoma International Inc.Inventors: Tadeusz Borys, Earlby E. J. Wakefield
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Patent number: 5534348Abstract: The present invention provides hollow borosilicate microspheres having a mean particle size between 15 and 20 microns, and a true density below 0.25 g/cc. The invention also provides a method for making such microspheres comprising spray drying a solution of sodium silicate and sodium borate in a spray tower to form a precursor, milling the precursor, and heating the crushed precursor to a temperature in excess of 600.degree. F. to form hollow borosilicate microspheres.Type: GrantFiled: March 28, 1995Date of Patent: July 9, 1996Assignee: PQ CorporationInventors: J. Stanley Miller, Reginald Thompson
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Patent number: 5532054Abstract: A molding material shaped like a plate and comprising a composite of continuous fibers and thermoplastic resin wherein each of the filaments which form the continuous fiber is coated around the surface thereof with the thermoplastic resin. Although the molding material has a high density of reinforcing fibers therein, it provides excellent distribution of fibers in the molding process; few of its fibers are broken, and its mechanical strength is considerably enhanced when its specific surface is made larger than a certain value. This molding material can be used for injection, extrusion and compression moldings.Type: GrantFiled: September 16, 1994Date of Patent: July 2, 1996Assignee: Mitsui Toatsu Chemicals, Inc.Inventors: Tomohita Koba, Toshiyuki Nakakura, Hideo Sakai, Misao Masuda, Satoru Kishi, Chiaki Maruko