Patents Examined by Paul J. Thibodeau
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Patent number: 5766769Abstract: A curable coating composition is described comprising(A) a carbamate- or urea-functional compound that is the reaction product of a mixture comprising(1) a compound comprising a carbamate or urea group or a group that can be converted to carbamate or urea, and a hydroxyl functional group(2) a compound comprising inorganic functional groups that are reactive with hydroxyl groups on a plurality of molecules of compound (A)(1), but that are not reactive with the carbamate or urea groups on compound (A)(1),(B) a compound comprising a plurality of groups that are reactive with carbamate or urea.Type: GrantFiled: August 15, 1996Date of Patent: June 16, 1998Assignee: BASF CorporationInventors: Walter H. Ohrbom, Brian D. Bammel, John D. McGee, Todd A. Seaver, Gregory G. Menovcik, Paul J. Harris, John W. Rehfuss
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Patent number: 5766777Abstract: A composite copper alloy bearing is provided with a backing metal layer, an intermediate layer of Cu--Pb alloy, and a surface layer of Al--Sn alloy. A thickness of the surface layer is not less than either larger value selected between 0.06 mm and a value 0.2 times the sum of thicknesses of the intermediate layer and the surface layer but not more than a value 0.5 times the sum of the thicknesses of the intermediate layer and the surface layer. With this construction, the surface layer exhibits excellent sliding properties while the intermediate layer maintains high conformability, and therefore there can be provided the composite copper alloy bearing which has high fatigue strength particularly even in a case where a shaft susceptible to misalignment is used.Type: GrantFiled: February 28, 1996Date of Patent: June 16, 1998Assignee: Daido Metal Company Ltd.Inventors: Tadashi Tanaka, Koichi Yamamoto, Yoshiaki Sato
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Patent number: 5766703Abstract: An automobile weather strip having a main body made of a sulfur-vulcanizable ethylene propylene rubber (EPDM) type compound and having a portion designed to be in contact with a sealer when the weather strip is mounted to an automobile. A sealer underlying layer is included that will be in contact with the sealer with that layer comprised of a bondability improving EPDM type compound and coextruded together with the main body. The bondability improving EPDM type compound is based on a blended polymer having a blending ratio:______________________________________ EPDM type polymer 60-96 wt % NBR type polymer 2-30 wt % hydrogenated SBR type polymer 2-30 wt %. ______________________________________A practical bondability can be ensured between the weather strip and the sealer with no pretreatment, such as by buff fabrication, to a portion of the weather strip to be abutted to or in contact with the sealer.Type: GrantFiled: December 21, 1995Date of Patent: June 16, 1998Assignee: Toyoda Gosei Co., Ltd.Inventors: Etsuro Mori, Hiroyasu Kozawa, Toshiyuki Tanaka, Seiji Ito
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Patent number: 5766738Abstract: An optically variable article comprising of a substrate and at least one non-overlapping pair of optically variable structures on the surface of the substrate, the optically variable structures having the same color at one angle of incidence and different colors at all other angles of incidence. The optically variable structures are formed from optically variable pigments, optically variable opaque foils, or optically variable multilayer thin film interference stacks.Type: GrantFiled: June 6, 1995Date of Patent: June 16, 1998Assignee: Flex Products, Inc.Inventors: Roger W. Phillips, Charles T. Markantes, Shari Powell Fisher, Robert G. Slusser, Patrick K. Higgins, Anton F. Bleikolm
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Patent number: 5763060Abstract: Described is a printed wiring board comprising a composite of an electrically conductive core laminated with layers of dielectric material and electrically conductive material.Type: GrantFiled: July 11, 1996Date of Patent: June 9, 1998Assignee: Advance Circuits, Inc.Inventor: Jon P. Kerrick
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Patent number: 5759703Abstract: An acid-modified polyolefin is dispersed in water by adding a hydroxy-functional ester made from a polymeric acid and a monoepoxide having from 14 to 46 carbon atoms to the water. Said dispersion is substantially zero-VOC. When a composition of this invention is applied to the surface and cured by baking the article at an elevated temperature, a coating is obtained which improves the adherence of subsequent coatings to a polyolefinic article. A polyolefinic article is one having a surface comprising polypropylene or a polypropylene modified with rubber called a thermoplastic polyolefin (TPO).Type: GrantFiled: October 25, 1995Date of Patent: June 2, 1998Assignee: Bee Chemical CompanyInventors: Alexander L. Neymark, David J. Miklos
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Patent number: 5759675Abstract: A multi-layer film having an intermediate layer containing, as a main component, a mixture of two kinds of specific linear low density polyethylenes, and innermost and outermost layers containing, as a main component, a mixture of a specific high pressure process polyethylene, a specific ethylene-.alpha.-olefin copolymer and a specific linear low density polyethylene. The film has an automatic packaging machine applicability and an excellent heat sealability at low temperatures without defects such as lowering of tuck in property, stretchability in the transverse direction and film slipping property and blocking, and is suitably employed as films for stretch packaging and shrink packaging which are used for prepackaging of retailed goods, mainly foods.Type: GrantFiled: May 17, 1996Date of Patent: June 2, 1998Assignee: Kohjin Co., Ltd.Inventors: Kazuhiro Hamada, Osamu Saeki, Tooru Matsumoto, Hideo Isozaki
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Patent number: 5759648Abstract: A multilayer, preferably biaxially oriented, film suitable for processing and/or packaging cook-in foods such as ham, roast beef and poultry having an excellent combination of oxygen barrier, heat seal and optical properties comprising at least five essential sequential layers with a first layer of a copolymer of propene and at least one C.sub.2 -C.sub.8 .alpha.-olefin having a propene content of at least 60 wt. % and preferably having a melting point <140 .degree. C.; a second layer of (1) a first copolymer of ethylene and at least one C.sub.4 -C.sub.8 .alpha.-olefin having a density of from 0.900 to 0.915 g/cm.sup.3 and a melt index of less than 1.0 dg/min., (2) a second copolymer of ethylene with from 4 to 18%, preferably 4 to 12%, of a vinyl ester or alkyl acrylate, (3) an anhydride-modified third copolymer of ethylene with at least one .alpha.-olefin, a vinyl ester or an alkyl acrylate, and (4) optionally a fourth copolymer of ethylene and at least one C.sub.3 -C.sub.8 .alpha.Type: GrantFiled: July 5, 1996Date of Patent: June 2, 1998Assignee: Viskase CorporationInventor: Scott Allan Idlas
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Patent number: 5756183Abstract: A microembossable coating for paper substrates containing: (i) a cross-linked sealing layer provided on the paper substrate, wherein the cross-linked sealing layer has a glass transition temperature above an embossing temperature; (ii) a microembossable layer provided on the cross-linked sealing layer, wherein the microembossable layer comprises, in admixture, a) a cyclohexanone aldehyde resin, b) chlorinated rubber; c) a vinyl terpolymer resin and d) an anti-blocking aid; (iii) an image intensifying layer provided on the microembossable layer; and (iv) a protective layer provided on the image intensifying layer. Optionally, the microembossable layer may contain: a) at least one of methyl methacrylate or ethyl methacrylate, b) polyvinyl acetate maleate copolymer, c) carboxyl vinyl terpolymer, and d) an antiblocking aid. A microembossed paper and process for microembossing paper substrates utilizes the above coatings.Type: GrantFiled: December 13, 1996Date of Patent: May 26, 1998Assignee: Foilmark Manufacturing CorporationInventors: Wilhelm P. Kutsch, Christopher C. Christuk, Dominick E. Casalena
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Patent number: 5756222Abstract: Corrosion of an aluminum article exposed to corrosive halogen-containing species within semiconductor processing apparatus is avoided by fabricating the aluminum article from a high purity aluminum-magnesium alloy having a magnesium content of about 0.1% to 1.5% by weight, either throughout the entire article or at least in the surface region which is to be rendered corrosion-resistant, and a mobile impurity atom content of less than 0.2% by weight. Upon exposure of the article to a halogen-containing species, a protective magnesium halide layer is formed beneath the surface of the article. The protective layer prevents halogens from penetrating to the base aluminum, thereby protecting the article from corrosion and cracking. To protect the magnesium layer from abrasion, the article preferably also includes a hard, cohesive coating over the magnesium halide layer. A preferred cohesive coating is aluminum oxide or aluminum nitride.Type: GrantFiled: August 15, 1994Date of Patent: May 26, 1998Assignee: Applied Materials, Inc.Inventors: Craig A. Bercaw, Laxman Murugesh, Joshua E. Byrne
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Patent number: 5756577Abstract: This invention is related to the production and application of heat- shrinkable films derived from a mixture of styrene-butadiene copolymer and polyolefin type resins produced by any of the known processes for polymeric films production. Thermal and mechanical properties of the films derived from this invention makes them suitable to be used, among other applications and with no restriction to the field of this invention, in heat-shrinkable labels, safety seals and overwrap type packaging, blister type thermoformed packaging and in general terms for any kind of packaging, overwrap safety packaging such as the employed to pack audiocassettes, videocassettes, books, magazines, etc., to protect them from tampering, as well as in general applications for packaging material.Type: GrantFiled: March 21, 1996Date of Patent: May 26, 1998Assignee: Grupo Cydsa, S.A. de C.V.Inventor: Mario Humberto Gutierrez-Villarreal
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Patent number: 5756178Abstract: Composite material for seals of plastic caps, especially of screw caps, ensuring leakproofing against liquids and imperviousness to gases at the same time, characterized in that it comprises, combined in a coherent multilayer structure, at least one middle layer (4) made of a plastic substance with a gas barrier effect, with a high modulus of rigidity, two outer layers (7) arranged on either side of the middle layer and consisting of a plastic substance with a low modulus of rigidity, each of the outer layers having a thickness greater than the thickness of the middle layer, and between the middle layer (4) and each outer layer (7) an intermediate layer (5) made of a substance of the same class as the outer layer, but with a high modulus of rigidity.Type: GrantFiled: April 25, 1994Date of Patent: May 26, 1998Assignee: Rical, S.A.Inventor: Jacques Obadia
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Patent number: 5756193Abstract: Disclosed is a polyethylene resin composition for heavy-duty packaging bag, which has a specific MFR, a specific density and a specific melt tension and which comprises (I) a linear low-density polyethylene resin prepared from ethylene and an .alpha.-olefin of 4 or more carbon atoms and having a specific MFR, a specific molecular weight distribution and a density of 0.900 to 0.918 g/cm.sup.3, (II) a linear medium or high-density polyethylene resin having a density of 0.935 to 0.970 g/cm.sup.3 and (III) a high-pressure low-density polyethylene resin having a density of 0.915 to 0.924 g/cm.sup.3, in a specific ratio of components. Also disclosed is a polyethylene resin film prepared from said composition. The composition is able to provide a film which is excellent in low-temperature properties such as low-temperature drop-bag strength and can be advantageously used for a heavy-duty packaging bag even in a cold district of below-freezing temperature.Type: GrantFiled: March 28, 1996Date of Patent: May 26, 1998Assignee: Mitsui Petrochemical Industries, Ltd.Inventors: Akihiko Yamamoto, Naoshi Hamada, Toshihiro Nishimura, Kouji Kitahara
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Patent number: 5753574Abstract: A composition having an empirical formula MB.sub.2-z +N, wherein 0<z<0.10 and M is selected from the group consisting of Zr, Hf and Ti, wherein N is selected from a group consisting of Cu, Au and Ag and wherein the MB.sub.2-z defines a ceramic matrix structure defining a volume with void spaces comprising at least 10 percent of the volume of the matrix structure and the N occupies at least 70 percent, by volume, of the void spaces. A preferred method of making the composition is a two step process: First, ZrB.sub.2 powder (which preferably is slightly enriched in Zr is vacuum hot pressed at a hot pressing temperature of about 2150 degrees C. to create a ceramic matrix having a density of about 68 percent. Second, the ceramic matrix is heated in a pool of copper at a vacuum and at an infiltration temperature of about 1700 degrees C. to permit copper from the pool to infiltrate the ceramic matrix.Type: GrantFiled: September 16, 1996Date of Patent: May 19, 1998Assignee: Hiz Corp.Inventors: Anthony Donaldson, Norbert B. Elsner, Saeid Ghamaty
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Patent number: 5750253Abstract: Printing paper such as newspaper printing paper, the water absorbency of which is controlled by coating material for controlling water absorbency on the surface of base paper, wherein the coating material contains component A which is at least one water-soluble polyacrylamide selected from nonionic polyacrylamides, cationic polyacrylamides, and water-soluble polyacrylamides, and component B which is water-soluble anionic polymers of monomers having hydrophobic substitute(s) and monomers having at least carboxyl group(s) or sulfone group(s).Type: GrantFiled: December 28, 1995Date of Patent: May 12, 1998Assignee: Nippon Paper Industries Co., Ltd.Inventors: Toshimi Satake, Toshiyuki Takano, Motoi Fukuda, Yukiko Uehori
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Patent number: 5750001Abstract: A metal reinforced plastic article is provided and comprises a first plastic member and a second plastic member bonded together through a plurality of apertures in a metal reinforcing member. Preferably, the metal reinforcing member has a plurality of angled protrusions on a first and second side. The protrusions on the first side are pressed into the first plastic member and the first plastic member is bonded to the protrusions, and the protrusions on the second side are pressed into the second plastic member and the second plastic member is bonded to the protrusions.A method of forming a metal reinforced plastic article is provided and comprises providing a first plastic member and a second plastic member. A metal reinforcing member having a plurality of apertures therein, and having a plurality of angled protrusions on a first and second side is provided.Type: GrantFiled: July 15, 1996Date of Patent: May 12, 1998Inventor: Siebolt Hettinga
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Patent number: 5744758Abstract: A multilayer circuit board includes a plurality of substrates. Each of the substrates includes a thermosetting resin film having respective surfaces, a metal layer formed on the one of the surfaces and a thermoplastic polyimide film formed on the other surface. Each of the substrates has at least one via hole, which is filled with thermoplastic polyimide resin containing electrically conductive material to form an electrically conductive via. The metal layer is defined as a predetermined circuit pattern electrically connected to the via. The plurality of substrates are laminated in such a manner that the substrate is adhered to an adjacent one by means of the thermoplastic polyimide film.Type: GrantFiled: August 9, 1996Date of Patent: April 28, 1998Assignee: Shinko Electric Industries Co., Ltd.Inventors: Toshikazu Takenouchi, Mikiko Wakabayashi
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Patent number: 5741574Abstract: A reinforced foam core sandwich structure including opposing face sheets, a foam core therebetween, and tow members encapsulated within the foam core and extending between the opposing face sheets to form a combined foam/tow member core wherein the compressive strength or shear strength of the combined foam/tow member core is greater than the compressive strength or shear strength, respectively, of the foam core alone or the tow members alone forming a support structure within the foam core between the face sheets.Type: GrantFiled: May 3, 1995Date of Patent: April 21, 1998Assignee: Foster-Miller, Inc.Inventors: Joseph Santin Boyce, Glenn Alexander Freitas, Thomas Gerard Campbell
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Patent number: 5741594Abstract: The present invention is a laminate comprising a first substrate adhesively bonded to a second substrate through an adhesion promoter. The first substrate comprises a substantially linear olefin copolymer and the adhesion promoter comprises a polar group functionalized substantially linear olefin copolymer. The present invention is also an adhesion promoter that comprises a mixture of a copolymer of a C.sub.2-20 olefin and an ethylenically unsaturated carboxylic acid or acid anhydride and a polar group functionalized substantially linear olefin copolymer or a polar group functionalized copolymer of ethylene and a C.sub.3-20 olefin having a narrow molecular weight distribution, a random distribution of comonomer units along the polymer backbone, and a homogeneity index of at least 75. The present invention is useful in a variety of applications such as bathroom scales, shoe soles, carpet-backing, and automobile windshields.Type: GrantFiled: August 28, 1995Date of Patent: April 21, 1998Assignee: The Dow Chemical CompanyInventor: Gary L. Jialanella
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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