Of Coating Patents (Class 428/341)
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Patent number: 5952098Abstract: There is provided by the present invention a thermal transfer ribbon which employs reactive binder components that increase in molecular weight when heated during transfer to provide images with high scratch and smear resistance. The reactive components comprise an epoxy resin binder and crosslinker for the epoxy resin binder which are maintained in separate phases within the thermal transfer layer until exposed to a thermal print head through the use of a coating formulation solvent which does not solubilize either the crosslinker or the epoxy resin binder or both.Type: GrantFiled: March 5, 1997Date of Patent: September 14, 1999Assignee: NCR CorporationInventors: Michael A. Lorenz, Joseph D. Roth
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Patent number: 5952107Abstract: There is provided by the present invention a coating formulation and thermal transfer ribbons obtained therefrom which do not require the application of a separate backcoating to the substrate employed. A backcoating is self-generated on the untreated side of the substrate from the thermal transfer layer of the ribbon when the two contact. A thermal transfer ribbon with a self-generated backcoat is also provided.Type: GrantFiled: October 29, 1997Date of Patent: September 14, 1999Assignee: NCR CorporationInventors: Joseph D. Roth, Christopher C. Vosler, Thomas J. Obringer
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Patent number: 5948472Abstract: A torsion box, useful for skis, snowboards or the like, has a constant cross section and a hollow interior. The torsion box is made from a plurality of plies and a resin matrix, at least some of the plies consisting of fibers disposed at an angle with respect to a longitudinal axis of the torsion box. The plies include fibers preferably selected from the group consisting of glass, carbon and Kevlar.RTM.. Particularly, the fibers will be angled with respect to the longitudinal axis of the torsion box within a range of about 0.degree. to about 45.degree.. The torsion box may be made by a pultrusion process where the desired fibers are pulled through a resin bath, or injected with resin, and heated in a die, then cut to a desired length. The plies are arranged to impart a material imbalance to the torsion box so that, upon cooldown, the product exhibits a predetermined camber.Type: GrantFiled: September 10, 1996Date of Patent: September 7, 1999Assignee: Lawrie Technology, Inc.Inventor: Duncan J. Lawrie
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Patent number: 5945198Abstract: A coating for providing a cover sheet used in the manufacture of wallboard with a light colored finish without the use of manila top plies is disclosed. The coating has a porosity adapted to allow evaporation of moisture from the wallboard core through the cover sheet, and maintain a desired smooth appearance. A high pigment-to-binder ratio is used to provide porosity, with soy protein being added to further enhance the porosity of the coating. The coating may be applied through various conventional methods of coating paper such as roll, spray, curtain, rod and vacuum.Type: GrantFiled: September 12, 1997Date of Patent: August 31, 1999Assignee: United States Gypsum CompanyInventors: Subhash S. Deodhar, Thomas M. Haugeberg, Claudia B. Hill, Thomas G. Houman, Robert H. Negri
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Patent number: 5942326Abstract: A film, having two major surfaces, includes an outer layer including a copolymer of ethylene and a C.sub.3 to C.sub.10 alpha olefin, wherein at least one surface has a silicone coating of between 0.1 and 1.2 milligrams per square feet. Multilayer films can also be provided. Films with a combination of good machinability and ink adhesion are obtained. Films with good shrink properties, in combination with good machinability and ink adhesion, are also obtained.Type: GrantFiled: May 9, 1997Date of Patent: August 24, 1999Assignee: Cryovac, Inc.Inventors: Martin J. Ecoff, Tracie P. Segura, Daniel S. Wilburn
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Patent number: 5935691Abstract: The subject invention relates to a type of metal dual-color extruded plastic key; said key comprising an electroplatable plastic material and a non-electroplatable plastic material; said two parts being subjected to plastic dual-color extrusion forming process; said non-electroplatable plastic material serving to produce a letter or figure; the area surrounding said non-electroplatable plastic material being the electroplatable plastic material; the surface of said electroplatable material being a layer of light-proof electroplated coating, to form the required metal surface; whereby the non-electroplatable plastic material being used to form the area where the letter or figure is to appear, so the lighting could permeate from the letter or figure; the above structure is so designed to provide a high added value to the key product with an exterior of excellent light permeability and comfortable touch.Type: GrantFiled: August 20, 1997Date of Patent: August 10, 1999Assignee: Silitek CorporationInventor: Jason Tsai
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Patent number: 5932513Abstract: A container packed with a mixture of powders classified respectively into two or at least three particle-size distribution groups which are different in average particle size, the powders comprising a hydrogen absorbing alloy singly or the combination of such an alloy and a substance not absorbing hydrogen. The mixture is at least 0.03 to not greater than 0.50 in the ratio d.sub.2 /d.sub.1 wherein d.sub.1 is the average particle size of the powder having the particle-size distribution of the largest average particle size, and d.sub.2 is the average particle size of the powder having the particle-size distribution of the second largest average particle size. The weight ratio of the powder to the total weight of the powders is greater when that powder has a particle-size distribution of larger average particle size.Type: GrantFiled: October 2, 1998Date of Patent: August 3, 1999Assignee: Sanyo Electric Co., Ltd.Inventors: Hiroshi Nakamura, Shin Fujitani, Yumiko Nakamura, Hiroshi Watanabe, Ikuo Yonezu, Takahiro Yonesaki, Kouichi Nishimura
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Patent number: 5932338Abstract: A film for tamper-proof coverings for product carriers consisting of platic is suggersted, which can replace the aluminum cover films known previously and which comprises a plastic matrix containing a particulate filler, this filler being selected and contained in the matrix with a proportion such that the penetration resistance of the film is reduced to below a limit of 450N/mm (measured on a film approximately 150 .mu.m thick).Type: GrantFiled: November 22, 1995Date of Patent: August 3, 1999Assignees: BP Chemicals Plastec GmbH, PCD Polymere GesellschaftInventors: Jurgen Schnabele, Norwin Schmidt, Henning Lubemann, Anton Wolfsbanger, Jurgen Emig
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Patent number: 5928781Abstract: A method is provided for forming a dissolvable or strippable polymeric release coating on the surface of flexible web, forming an overcoated metallized or optically variable layer on said release coating, and stripping or dissolving the release coating to release the overcoated layer. The release coating comprises a polymer of crotonic acid which is soluble in a solvent such as acetone. The polymer may be a copolymer of crotonic acid and at least one vinyl ester such as vinyl acetate. The release coating may be formed during an in-line process which begins with drawing the flexible web from a molten polymeric material. The methods are particularly advantageous for forming optically variable flakes and multilayered optically variable devices.Type: GrantFiled: November 11, 1997Date of Patent: July 27, 1999Assignee: Mitsubishi Polyester Film, LLCInventors: R. Scott Caines, Stephen J. Gust, John M. Heberger
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Patent number: 5925427Abstract: A core for an elastomeric tubing assembly is produced from a ribbon helically wound on itself to form a cylindrical tube. The edges of the ribbon are formed to interlock with each other and are contoured to facilitate ultrasonic welding of the edges. A support member is coextruded in the ribbon to provide increased resistance to premature collapse of the tube.Type: GrantFiled: August 12, 1997Date of Patent: July 20, 1999Assignee: Minnesota Mining and Manufacturing CompanyInventors: James L. Sadlo, Gene J. Melancon
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Patent number: 5925447Abstract: A thermoplastic film coated with a permanent antistatic composition to form an antistatic coating thereon, and a method for priming a thermoplastic film with the antistatic composition. The antistatic composition comprises: from 2 to 11% by weight of an antistatic copolymer; from 0 to 0.45% by weight of an antistatic compound; from 0.25 to 2% by weight glycidoxy silane; from about 0.3 to 2% by weight spherical silica particles having an average diameter of 10-100 nanometers; and water, or a mixture or water and organic solvent, wherein the total weight percent of all components equals 100%.Type: GrantFiled: July 18, 1996Date of Patent: July 20, 1999Assignee: Mitsubishi Polyester Film, LLCInventors: Stephen J. Gust, Ronald S. Caines
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Patent number: 5925457Abstract: An intumescent coating system and method therefor is disclosed for thermally protecting a substrate having a surface exposed to fire conditions. The coating system of the present invention is provided as having a first component which forms a rigid carbonific char foam having toughness and rigidity, and a second component which forms an insulative carbonific char foam having a density about half the density of the rigid carbonific foam to give insulation properties. The two foam components may be separately provided in a laminate-type arrangement as, respectively, an inner coating layer coated and cured on the surface of the substrate to form an inner film layer, and an outer coating layer coated and cured on the inner film layer to form an outer film layer. Alternatively, the two foams may be provided as being formed from components blended to comprise a single coating layer which is coated and cured on the surface of the substrate to form a film layer.Type: GrantFiled: May 19, 1997Date of Patent: July 20, 1999Assignee: Battelle Memorial InstituteInventors: Vincent D. McGinniss, Richard J. Dick, Robert E. Russell, III, Stephen D. Rogers
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Patent number: 5925453Abstract: A window film is disclosed. The window film comprises a light reflecting layer and an infrared absorbing layer. The window film can minimize the reflection of infrared rays and reduce the intensity of condensed infrared rays, even when the inside surface of a curved glass window is irradiated by sunlight.Type: GrantFiled: March 17, 1997Date of Patent: July 20, 1999Assignee: Lintec CorporationInventors: Masanori Kase, Hironobu Akiyama
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Patent number: 5925458Abstract: A process for the coating of a carbon fiber composite which comprises carbon fibers bonded together with a polymeric material, which process comprises positioning the carbon fiber composite in a chamber maintained at a reduced pressure of from 25,000 to 10,000 Pa (250 to 100 mBar), and plasma spraying a coating onto a surface of the carbon fiber composite whilst cooling the said surface of the composite with an inert liquid coolant medium the said coating composition being selected from the group consisting of non-agglomerated hydroxyapatite or non-agglomerated modified hydroxyapatite.Type: GrantFiled: May 29, 1998Date of Patent: July 20, 1999Assignee: COATINVESTInventor: Johan Emile Marie Vanderstraeten
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Patent number: 5924160Abstract: An article for cleaning, washing and scrubbing comprising of a three layered cloth glove, useable on either the right or the left hand. The middle layer of the glove divides the palm and finger sections of the glove into right and left handed glove sections. Attached to the entire width of the wrist edge of the middle layer of said glove is the stem end of a pear shaped wash cloth. Said attachment of glove and wash cloth continues down the outer seam of the thumb of the glove, that is, from the wrist to the seam of the thumb.Type: GrantFiled: May 24, 1994Date of Patent: July 20, 1999Inventor: Jocelyn D. Bradley
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Patent number: 5925426Abstract: An improved porcelain ornament imprinted through the method of lithophanie is provided. The ornament comprises a lower body element having a design imprinted thereon through the method of lithophanie, and an upper body element having a second design printed thereon, also through the method of lithophanie. The upper body element is selectively removable from the lower body element for insertion of a light producing element. When the upper and lower body elements are combined, the upper and lower designs interactively form one overall picture.Type: GrantFiled: April 4, 1997Date of Patent: July 20, 1999Assignee: Porcelaines Philippe Deshoulieres-Lourioux S.A.Inventor: Stephane Galerneau
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Patent number: 5925446Abstract: Electrophotographic transfer paper having a coating layer provided on at least one surface of base paper and pigments and adhesive agents as main components, wherein resistivity (VR) and surface resistivity (SV) of electrophotographic transfer paper after the humidity has adjusted to 10.degree. C., 30% RH for 12 hours satisfy the expression Log(VR/SR).ltoreq.1.5. Using such electrophotographic transfer paper, occurrence of discharge mark and occurrence of density irregularity in a high-density image region are prevented to thereby make it possible to provide electrophotographic transfer paper excellent in fixing characteristic, nonshowthrough, partial deletion and generation of paper dust.Type: GrantFiled: December 15, 1995Date of Patent: July 20, 1999Assignees: Fuji Xerox Co., Ltd., New Oji Paper Co., Ltd.Inventors: Tsukasa Matsuda, Kunio Sakurai, Masaru Kato, Harumi Watanabe
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Patent number: 5922422Abstract: A label to be wrapped around and adhered to a container by adhesive in the vicinity of its ends, and which is perforated in the vicinity of its ends to allow access of solvent to dissolve or loosen the adhesive and facilitate removal of the label; also a method of so labeling a container and the container so labeled.Type: GrantFiled: March 18, 1998Date of Patent: July 13, 1999Assignee: B & H Manufacturing Company, Inc.Inventor: Svatoboj Otruba
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Patent number: 5922421Abstract: A combined vapor barrier and water assembly for securement to the underside of covers of heated water tubs and pools stands by and around an intentionally made drain opening in an otherwise water tight cover, to provide a drain passageway to be used, if necessary, whenever rain water might unwantedly enter the interior of the cover, and while standing by, to provide a vapor barrier preventing heated vapors from rising upwardly through the drain passageway. In a preferred embodiment, at least two dense weave cloth members, spaced apart, each extend completely across the cross section of the drain passageway, while positioned within a hollow contoured housing of the assembly, which is adapted to be secured to the underside of the cover round the intentionally made drain opening, to provide the drain passageway for the exiting rain water that might unwantedly collect in a cover which was originally watertight.Type: GrantFiled: April 25, 1997Date of Patent: July 13, 1999Inventor: Gary L. Perry
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Patent number: 5919534Abstract: A vented food casing having a plurality of die cut vent openings which are uniform and free-draining so as to provide the casing with a vent rate for air and liquids such as meat juices which is substantially constant around the periphery of the casing. The vent opening being formed by a die cutting operation by drawing flattened casing between rollers, one of which has made punches that mate with female die openings on another roller.Type: GrantFiled: November 27, 1996Date of Patent: July 6, 1999Assignee: Viskase CorporationInventor: Jeffery Allen Oxley
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Patent number: 5916685Abstract: A transparent multilayer structure is disclosed such as a flexible self-supporting container for a flowable food product such as fruit juice. The transparent multilayer structure possesses superior barrier properties to oxygen, water vapor and aromatic gases. The multilayer structure may include an exterior layer having a metal oxide deposition laminated to an interior layer through use of an adhesive. In one embodiment, the metal oxide is SiOx where x has a value between 1.5 and 2.2 thereby allowing for a transparent multilayer structure. The metal oxide may be deposited on the exterior layer through a number of various methods. An exemplary method is plasma-enhanced chemical vapor deposition. The exterior layer may be composed of a polymer material integrated with a clay mineral between 0.1% and 10% weight of the polymer material. The polymer material may be selected from the group consisting of polyamide, polyethylene terephthalate, copolymers of polyethylene terephthalate and mixtures thereof.Type: GrantFiled: March 14, 1997Date of Patent: June 29, 1999Assignee: Tetra Laval Holdings & Finance, SAInventor: Peter Frisk
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Patent number: 5916681Abstract: A particulate insulating material is disclosed which includes a sound absorptive central core having a density of at least 1.0 grams/cm.sup.3, and an outer less dense thermally insulating coating provided at least partially about the core. The outer coating is selected to provide thermally insulating properties and may have either an open or closed foamed or expanded cellular structure and a density of less than 0.75 grams/cm.sup.3, with the core comprising between about 5 to 80% of the granule by volume. The high density core is chosen from a material which absorbs, reflects and/or diffracts sound waves, such as metals as well as natural and synthetic solid compositions and compounds.Type: GrantFiled: June 10, 1997Date of Patent: June 29, 1999Inventor: Jozef Cipin
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Patent number: 5916649Abstract: Molded articles preferably for use in a vehicle as a headlamp reflector, lamp socket, shader of vehicle lamp, or vehicle headlamp, and that are highly resistant to heat are disclosed. The molded articles of the present invention include from 70 to 95% (by weight) of an inorganic filler, which is a liquid at the molding temperature and a solid at room temperature, and a thermoplastic binder. The molded article is produced by either injection molding or transfer molding.Type: GrantFiled: September 5, 1996Date of Patent: June 29, 1999Assignee: Hella KG Hueck & Co.Inventors: Klaus Hegemann, Konrad Schmitz
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Patent number: 5916673Abstract: A recording sheet for ink jet printing comprising a support having coated onto said support one or more layers receptive for aqueous inks, said coating comprising at least one film forming, hydrophilic polymer or a mixture of film forming hydrophilic polymers and imbedded in this film at least one trivalent salt of a metal of the Group IIIb series of the periodic table of elements or complexes which comprise trivalent ions of the metals of Group IIIb of the periodic table of the elements. In another embodiment the salts or complexes of Group IIIb elements are coated directly on the substrate surface without the presence of the film forming polymer.Type: GrantFiled: July 31, 1997Date of Patent: June 29, 1999Assignee: Ilford AGInventors: Mario Fryberg, Roland Kurzen, Klaus Haarmann, Diane L. Blednick, Daniel R. Rogers
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Patent number: 5914159Abstract: Indented grooves having a concavo-convex bottom respectively are formed on abutting surfaces of a case body and a case cover. The indented grooves constitute a sealant filling space when case body is engaged with case cover. Sealant filled in the space can have enough contacting area within a limited space with respect to the inner wall surfaces of the indented grooves, perfectly preventing water inflow from outside and obtaining pressure-resistance as well. A wall portion formed to extend in the axial direction prevents inflow of overflowing sealant from the sealant filling space into case body. Thus, without enlarging an overall size of the case, a water-proofing structure with good sealing property can be obtained.Type: GrantFiled: December 19, 1996Date of Patent: June 22, 1999Assignee: Asmo Co., Ltd.Inventor: Manabu Kato
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Patent number: 5914073Abstract: A protective film for a polarizing plate comprises a resin film, and provided thereon, a layer comprising a polyol acrylate resin.Type: GrantFiled: July 26, 1996Date of Patent: June 22, 1999Assignee: Konica CorporationInventors: Toru Kobayashi, Naoko Morita, Koichi Nagayasu, Isamu Michihata, Masaji Nara
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Patent number: 5912080Abstract: A sheet of high strength graphite material is bent into an arcuate shape, and the bent sheet is retained in that shape for use in a high temperature furnace. The bent sheet is rigid and can replace prior art machined blocks of lower strength graphite in a furnace. The bent sheet can also be further machined and/or further deformed into other shapes.Type: GrantFiled: May 9, 1995Date of Patent: June 15, 1999Assignee: Union Oil Company of California, dba UnocalInventors: Larry D. Fiel, Jamie Lorzadeh
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Patent number: 5910360Abstract: A glass article, especially of hollow glass, carries a coating resulting from the deposition, in one or two stages, onto the surface of the glass, of at least one monoaminosilane and of at least one lubricating substance such as an optionally oxidized or partially oxidized polyolefin. The coating provides desirable properties of wet and dry abrasion resistance (scratch resistance), substantial invisibility, and adhesiveness for labels. Articles having labels directly attached to said coating are also provided as well as the process for obtaining the desired properties.Type: GrantFiled: December 10, 1997Date of Patent: June 8, 1999Assignee: Elf Atochem Vlissingen B.V.Inventors: Jean-Marc Boumera, Maurice Bourrel, Jean-Michel Chabagno, Hendrikus Johannes Cornelis Gijsen, Leendert Cornelis Hoekman
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Patent number: 5908706Abstract: A dummy plate for offset printing comprising essentially a mechanically and/or electrochemically roughened, anodically oxidized and hydrophilized aluminium support in the form of a plate, sheet or band and a non light-sensitive, water-soluble layer coated thereon, and characterized in that the layer contains at least one organic polymer with a water-solubility of at least 2 g/L at room temperature and at least one inorganic compound reacting as an acid.Type: GrantFiled: February 19, 1997Date of Patent: June 1, 1999Assignee: Agfa-GervertInventors: Peter Lehmann, Klaus Joerg
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Patent number: 5904976Abstract: A polymeric film having a translucent first layer of polymeric material, a transparent second layer of polymeric material on at least one surface of the first layer, and an adherent layer comprising an acrylic resin on the surface of the second layer remote from the first layer is disclosed. Both the first and second layers are preferably formed of biaxially oriented polyethylene terephthalate. The first layer contains an inorganic filler opacifying agent. The polymeric film is particularly suitable for use as an upper sheet in a re-usable label employing the "magic slate" principle.Type: GrantFiled: April 30, 1996Date of Patent: May 18, 1999Assignee: Imperial Chemical Industries PLCInventors: Michael Richard Berry, Paul David Lawrence, Gary Victor Rhoades
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Patent number: 5902653Abstract: An oil holding cylinder for an oil coating roller is provided. The cylinder includes at least a cylindrical non-sintered molded body, which is formulated from a mixture of at least ceramic fiber and an organic binder. In addition, the mixture can further include clay, an inorganic binder, or a combination thereof. The molded body preferably has a porosity in a range of about 30% to about 70%. In operation, the oil holding cylinder disclosed herein can stably and uniformly supply oil to the fixing rollers and the like for an extended period of time, while preventing offset.Type: GrantFiled: December 29, 1994Date of Patent: May 11, 1999Assignees: Nichias Corporation, Zenith CorporationInventors: Yoshihisa Miyahara, Kouichi Kimura, Yoshiyuki Motoyoshi, Tatsuo Takagi, Osamu Horiuchi, Hiromi Furuya
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Patent number: 5900115Abstract: Provided are an ink jet recording paper which is provided with a recording layer having a coverage rate of from 0.1 to 10 g/m.sup.2 on at least one side of a base paper and has a basis weight of from 50 to 100 g/m.sup.2, with the recording paper having an irreversible shrinkage factor of from -0.05% to 0.10% in the CD direction when it is put under an environment that the relative humidity thereof is raised to 95% from 35% and then lowered to 35% and further showing a shrinking rate of from 0.15% to 0.25% in the CD direction by the change in relative humidity of the environment from 75% to 60% during the process of lowering the relative humidity from 90% to 35%.Type: GrantFiled: May 9, 1997Date of Patent: May 4, 1999Assignee: Nippon Paper Industries, Co., Ltd.Inventors: Yoshihiro Kuroyama, Teiichi Ohtani, Yukio Kobayashy, Yoichi Yamazaki, Yasunori Nanri
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Patent number: 5900291Abstract: A non-light penetrating phlebotomy tube comprising a dark colored hollow tubular housing having an elongated cylindrical member wherein one distal end of the elongated cylindrical member is rounded and the other distal end of the elongated cylindrical member is open. A hermetic sealing member is received in the other distal end of the elongated cylindrical member for sealing the hollow tubular housing. The non-light penetrating phlebotomy further comprises a temperature sensitive level indicator coupled to the elongated cylindrical member for detecting the level of a fluid entering the dark colored hollow tubular housing.Type: GrantFiled: May 19, 1997Date of Patent: May 4, 1999Inventor: Patricia J. Pebbles
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Patent number: 5891827Abstract: A dye-receiving element for thermal dye transfer comprising a support having on one side thereof a polymeric dye image-receiving layer and on the other side thereof a backing layer comprising a water-soluble polymeric binder, inorganic particles, and a cationic, polymeric mordant for anionic dyes.Type: GrantFiled: November 26, 1997Date of Patent: April 6, 1999Assignee: Eastman Kodak CompanyInventors: David P. Brust, George B. Bodem, Wayne A. Bowman
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Patent number: 5891533Abstract: A base form for use in making decorative baskets and other art form arrangements has a plastic grid sheet on which is sewn a series of concentric circles of loops made from narrow strips of a thin plastic film. The loops are formed with their bases abutting and the bases sewn to the plastic grid sheet. The grid sheet is formed to fit the particular application. Flowers and other decorative notions may be inserted into the grid material and loops to form a pleasing arrangement.Type: GrantFiled: April 16, 1997Date of Patent: April 6, 1999Inventors: Laurie A. Pensero, JoAnne L. Pearson
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Patent number: 5890279Abstract: A long service life abutment member for use in an electronic component placement apparatus, such as a suction bit and an abutment body of a clamping finger. A diamond film or sintered diamond body is formed on top of the suction surface of the body of the suction bit for placing an electronic component at an intended place on a printed circuit board and on top of abutment bodies of clamping fingers for clamping the electronic component therebetween.Type: GrantFiled: May 1, 1997Date of Patent: April 6, 1999Assignee: Tenryu Technics Co., Ltd.Inventor: Shigeyuki Enoki
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Patent number: 5888626Abstract: This invention describes two products both with a plain, fine textured, nonperforated surface visual consisting of a fiberboard substrate with or without a laminated porous nonwoven scrim and then a finished painted surface. The finish painted surface decorates or finishes the board, but most important, must remain acoustically transparent to retain the sound absorption properties of the fiberboard prior to painting. The fiberboard substrate is made to be porous or modified with hole perforations to cause it to be a good sound absorber. If the fiberboard substrate is sufficiently porous without hole perforations, then the sprayable, high solids, porous paint can be directly applied. If hole perforations are used to improve the sound absorption properties of the board substrate, then a porous, nonwoven scrim is attached and painted using the same high solids porous paint.Type: GrantFiled: January 27, 1997Date of Patent: March 30, 1999Assignee: Armstrong World Industries, Inc.Inventor: Darryl L. Sensenig
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Patent number: 5885071Abstract: In order to reduce concentrations of impurities in an inner layer of a quartz crucible for pulling a silicon single crystal which comprises an outer layer made of quartz glass and an inner layer formed on the inner surface of the outer layer, a migration-preventing layer is formed between the outer and inner layers, wherein the migration-preventing layer prevents migration of the impurities such as alkaline metals included in the natural quartz glass in the outer layer to the synthetic quartz glass in the inner layer.Type: GrantFiled: March 6, 1997Date of Patent: March 23, 1999Inventors: Hiroyuki Watanabe, Tatsuhiro Sato
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Patent number: 5885671Abstract: Disclosed are fill compositions suitable for carrying pigment and encapsulation within gelatin capsules comprising:(a) a polyoxyalkylene glycol having a mean molecular weight of from about 200-500;(b) glycerol;(c) water;(d) an oleaginous material;(e) a carboxylic copolymer; and(f) a neutralizing agent for the carboxylic polymer in an amount effective to neutralize at least about 75% of the carboxylic acid groups on the polymer. Also disclosed are gelatin capsules containing sych compositions and methods for preparing the fill compositions.Type: GrantFiled: July 17, 1997Date of Patent: March 23, 1999Assignee: R.P. Scherer North AmericaInventors: Ronnie E. Bayless, Dennis Laba, William Reynolds
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Patent number: 5885681Abstract: Absorbent products and components for use in absorbent products are disclosed. These absorbent products comprise pressure-sensitive adhesive microfibers and thermoplastic polymer microfibers, that when incorporated into absorbent products provide good liquid transport properties, resiliency, and attachment systems; and further mask odors associated with bodily fluids.Type: GrantFiled: August 27, 1996Date of Patent: March 23, 1999Assignee: McNeil-PPC, Inc.Inventor: Ralf Korpman
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Patent number: 5882510Abstract: Contact-filter block (10) for the construction of trickling filters or rotating disc filters such as those used for the biological treatment of waste waters. The tube sections (11) of which the contact-filter block (10) is made up have an outside surface (12) structured in a net-like manner, the outside surfaces of the tube sections (11) being joined by joints (13) to avoid constrictions in the clear cross section of the tube sections (11).Type: GrantFiled: August 7, 1997Date of Patent: March 16, 1999Assignee: Norddeutsche Seekabelwerke AktiengesellschaftInventors: Hartwig Basse, Hans-Joachim Bittner
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Patent number: 5879766Abstract: A joint body containing a ceramic member composed of a main body and a disclike projection projected therefrom and a ceramic cylindrical body. The disclike projection is inserted inside the cylindrical body, and a relative density of the disclike projection is higher than that of the cylindrical body. The cylindrical body is composed of a straight portion not contacted with the projection and having a uniform inside diameter, a diameter-expanded portion in contact with the projection and having the largest inner diameter, and a tapered connecting portion bridging the straight portion and diameter-expanded portion. A difference between the inner diameter of the straight portion and that of the diameter-expanded portion is 0.05 mm to 0.6 mm.Type: GrantFiled: July 31, 1997Date of Patent: March 9, 1999Assignee: NGK Insulators, Ltd.Inventor: Shigeki Kato
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Patent number: 5876811Abstract: A microwavable single-serving meal container comprising a microwavable meal tray containing a food product; and a microwavable polyurethane foam shell having a shape adapted to substantially conform to the shape of the meal tray, said foam shell enveloping the meal tray and thus the food product during microwaving of the food product to thereby retain microwave induced heat.Type: GrantFiled: March 18, 1992Date of Patent: March 2, 1999Inventors: Tommie R. Blackwell, Matthew Wallo
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Patent number: 5873978Abstract: Provided is a recording paper having a feeling of plain paper suitable for ink jet recording with water-base ink, with the recording paper having in both machine and cross directions an irreversible shrinkage factor of from -0.10% to +0.10% when it is put under an environment that the relative humidity thereof is changed from 35% to 90% and further changed to 35%.Type: GrantFiled: February 28, 1997Date of Patent: February 23, 1999Assignee: Nippon Paper Industries Co., Ltd.Inventors: Yoshihiro Kuroyama, Yoichi Yamazaki, Yasunori Nanri
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Patent number: 5874161Abstract: This invention describes two products both with a plain, nonperforated surface visual consisting of a fiberboard substrate with or without a laminated porous nonwoven scrim and then a finished painted surface. The finish painted surface decorates or finishes the board, but most important, must remain acoustically transparent to retain the sound absorption properties of the fiberboard prior to painting. The fiberboard substrate is made to be porous or modified with hole perforations to cause it to be a good sound absorber. If the fiberboard substrate is sufficiently porous without hole perforations, then the sprayable, high solids, porous paint can be directly applied. If hole perforations are used to improve the sound absorption properties of the board substrate, then a porous, nonwoven scrim is attached and painted using the same high solids porous paint. This painted scrim must be sufficiently optically opaque to hide the hole punched board, yet sufficiently open to render it acoustically transparent.Type: GrantFiled: November 9, 1995Date of Patent: February 23, 1999Assignee: Armstrong World Industries, Inc.Inventors: James D. Pape, Darryl L. Sensenig
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Patent number: 5869154Abstract: Metal sparkles having one or more colors dispersed throughout a translucent resin at a concentration which eliminates the appearance of scratches and scuff marks on the resin surface. A pigment may be used in the translucent resin to yield a variety of decorative colors to create matching containers and utensils. The metal sparkle concentration in the translucent resin contains on an average 11/2%-3% metal sparkles by weight and 0.25%-1% color by weight. The sparkle concentration may be used at a letdown ratio of 4% resulting in a composition having an average of 0.06%-0.12% sparkles by weight and 0.01%-0.04% color by weight. The sparkles are random cuts of multi-colored aluminum having an average size of 1/64" (0.015) and are manufactured from the thinnest standard sheets of aluminum which are polished to a mirror-like surface of brilliant reflectivity.Type: GrantFiled: March 21, 1996Date of Patent: February 9, 1999Assignee: Fort James CorporationInventor: Julie M. Benson
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Patent number: 5864095Abstract: An abrasion-resistant fluoropolymer mixture comprising(A) from 75 to 99% by weight of a fluorocarbon polymer(B) from 1 to 25% by weight of an oxidized polyarylene sulfide and, based on the sum (A)+(B),(C) from 0 to 15% by weight of a filler,is used for the production of feed pipes for Bowden cables which are pressure-resistant and abrasion-resistant.Type: GrantFiled: December 11, 1997Date of Patent: January 26, 1999Assignee: Ticona GmbHInventors: Helmut Scheckenbach, Andreas Schleicher, Jurgen Kulpe, Wolfgang Neumann, Bernd Jansen
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Patent number: 5861201Abstract: A coextruded label material is provided which comprises a styrenic unfoamed layer and a styrenic foam layer wherein the styrenic unfoamed layer is the predominant portion as contrasted to the styrenic foam layer. In accordance with another aspect of the invention, an additional clear or translucent unfoamed plastic layer is adhered to the unfoamed layer with printing interposed between the unfoamed layers. Printing is provided on the unfoamed layer of the coextruded material or other side of the additional clear or translucent unfoamed layer. A container package is provided wherein a label is cut from the label material and wrapped about a hollow container.Type: GrantFiled: November 24, 1997Date of Patent: January 19, 1999Assignee: Owens-Illinois Labels Inc.Inventors: Maurice W. Blackwelder, Louis M. DiBello
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Patent number: 5858486Abstract: A Czochralski process furnace component comprises a high purity, semiconductor standard composite including a carbon fiber reinforced carbon matrix having a total level of metal impurity below about 10 ppm, preferably below about 5 ppm, and most preferably having a level of metal impurity below the detection limit of inductively coupled plasma spectroscopy for the metals Ag, Al, Ba, Be, Ca, Cd, Co, Cr, Cu, K, Mg, Mn, Mo, Na, Ni, P, Pb, Sr and Zn. A crucible susceptor for a crystal growing process for pulling a crystal ingot from a crystal material melt in a crucible comprises a high purity composite comprising a two dimensional, continuously woven carbon fiber fabric reinforced carbon matrix; the high purity composite having a total level of metal impurity less than about 10 parts per million; the crucible susceptor being a one piece, ply lay-up structure of said high purity composite, having a side ring and a base, said side ring and said base having substantially the same thickness.Type: GrantFiled: June 3, 1997Date of Patent: January 12, 1999Assignee: SGL Carbon Composites, Inc.Inventors: Robert Howard Metter, Joseph David Hathcock, Peter M. Winsek
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Patent number: RE36220Abstract: Disclosed are a magnetic recording medium which comprises a non-magnetic support, one or more coating layers provided on the non-magnetic support and an upper layer of the coating layers being a magnetic layer containing ferromagnetic metallic powder with the total thickness of the coating layers being 0.5 to 2.5 .mu.m, wherein the magnetic layer has a surface roughness Ra of 1.0 to 4.6 nm and a surface roughness R10z of 8.0 to 35.0 nm, which satisfy the relations of:Ra.ltoreq.-0.47t+0.5/t+3.8 andR10z.ltoreq.-1.50t+6.0/t+23.0where t is the total thickness of the coating layers in terms of .mu.m,and an aliphatic acid ester is contained in the surface portion of the magnetic layer in an amount of 5 to 50 mg/m.sup.2, and a process for preparing the same.Type: GrantFiled: March 8, 1996Date of Patent: June 1, 1999Assignees: Konica Corporation, TDK CorporationInventors: Takahiro Mori, Kunitsuna Sasaki, Hisato Kato, Kazuyoshi Imai, Takahiro Hayashi