Patents Examined by E. Rollins Buffalow
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Patent number: 5756171Abstract: A laminate film having two olefin type films, a heat resistant film with a vapor deposition coat of aluminum oxide on each surface thereof and a heat adhesion resin layer for joining the olefin type films to the heat resistant film. Instead of the heat resistant film and the heat adhesion resin layer, an oriented film of ethylene-vinyl alcohol copolymer resin layer and a co-extrusion resin layer including a heat adhesion resin layer and an olefin type resin layer may be used. The heat adhesion resin layer is maintained in a heating state for a predetermined time when the laminate film is manufactured.Type: GrantFiled: December 21, 1993Date of Patent: May 26, 1998Assignee: Kabushiki Kaisha Hosokawa YokoInventors: Yoshiji Moteki, Takayuki Kotani
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Patent number: 5756185Abstract: A gluable fixing element for holding structural or functional components to essentially flat surfaces of carrier parts. It consists of a bonding portion for producing an adhesive bond with the surface of the carrier part and at least one further holding portion for producing a positive or non-positive connection with the component. The bonding portion has a bonding surface which is provided with a curable and/or crosslinkable, reactive hot-melt adhesive that when dry is wear-resistant and non-adhesive at temperatures up to 80.degree. C. but that can be reactivated within a very short time when heated by thermal or other energy to a temperature sufficient to melt the adhesive to produce a durable adhesive bond between the element and the carrier parts.Type: GrantFiled: January 30, 1995Date of Patent: May 26, 1998Assignee: A. Raymond & GmbH & Co. KGInventor: Hans-Jurgen Lesser
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Patent number: 5756219Abstract: The invention provides a stretch wrapping film (i.e., non-heat shrinkable) having (i) skin layers and (ii) at least one core layer which includes at least 25% by weight, more preferably from about 60% to about 90% by weight (of the layer composition) of a propylene polymer, preferably a propylene homopolymer; for the film as a whole, the propylene content ranges from about 10% to about 65% by weight (of the film). In more preferred embodiments, the films include skin layers, intermediate layers, and a core layer. At least one of the intermediate and core layers contains the propylene polymer, which is preferably a homopolymer or a blend of homopolymer with linear low density polyethylene (LLDPE); the skin layers comprise an ethylene polymer, preferably a tacky LLDPE composition. These films have improved strength and tear and puncture resistance, and are especially suited for industrial wrapping of loaded pallets and other large objects such as furniture.Type: GrantFiled: January 16, 1996Date of Patent: May 26, 1998Assignee: AEP Industries, Inc.Inventors: Sergey Miro, William L. Harkey
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Patent number: 5747164Abstract: An electroconductive composite plastic sheet comprising a substrate sheet made of at least one thermoplastic resin selected from the group consisting of a polyphenylene ether type resin, a polystyrene type resin and an ABS type resin and having laminated on each side of the substrate sheet, an electroconductive resin composition comprising (A) at least one thermoplastic resin selected from the group consisting of a polyphenylene ether type resin, a polystyrene type resin and an ABS type resin, (B) carbon black, and (C) an olefin type resin or (C1) a resin obtained by hydrogenation of a styrene/diene block copolymer, said electroconductive resin composition containing from 5 to 50 parts by weight of (B) the carbon black per 100 parts by weight of (A) the thermoplastic resin, and from 1 to 30 parts by weight of (C) the olefin type resin or (C1) the resin obtained by hydrogenation of a styrene/diene block copolymer, per 100 parts by weight of the total amount of (A) the thermoplastic resin and (B) the carbon blaType: GrantFiled: December 26, 1995Date of Patent: May 5, 1998Assignee: Denki Kagaku Kogyo Kabushiki KaishaInventors: Takeshi Miyakawa, Mikio Shimizu, Takeshi Nabeta
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Patent number: 5744247Abstract: An effective oxygen barrier which can substantially extend the shelf life of oxygen sensitive products comprising at least outer and inner plies of a polymeric material and a substantially anaerobic space between the two or more plies.Type: GrantFiled: December 6, 1995Date of Patent: April 28, 1998Assignee: The Pillsbury CompanyInventor: George Anderson
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Patent number: 5743986Abstract: A composite stratiform material (1) having at least three interfused layers and comprising:(I) a carried layer (10) formed of a mixture containing polypropylene and a particulate organic filler;(II) a first outer layer (12) interfused with said carrier layer at a first interface (11) and consisting essentially of a mixture containing polypropylene and an inorganic filler;and (III) a second outer layer (14) interfused with said carrier layer at a second interface (13) located opposite said first interface (11) and consisting essentially of a mixture containing polypropylene and an inorganic filler.Type: GrantFiled: December 21, 1995Date of Patent: April 28, 1998Assignee: ICMA San Giorgio S.p.A.Inventor: Gian Carlo Colombo
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Patent number: 5744240Abstract: An intermediate clear barrier coat is composed of at least one polymer or oligomer or combination in an aqueous or organic solvent carrier. This layer is placed between a basecoat layer containing pigment and a low VOC clearcoat layer and inhibits the components of the low VOC clear topcoat from inducing a shift of color in the basecoat.Type: GrantFiled: October 4, 1996Date of Patent: April 28, 1998Assignee: BASF CorporationInventors: Matthew T. Lane, David Braun
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Patent number: 5744615Abstract: Disclosed is a process for producing an ultra-white N,N'-ethylene-bis(tetrabromophthalimide) product useful as a flame retardant. Also disclosed is a flame retardant composition predominantly comprised of N,N'-ethylene-bis(tetrabromophthalimide) and having unprecedented color and high purity.Type: GrantFiled: January 19, 1996Date of Patent: April 28, 1998Assignee: Great Lakes ChemicalInventors: Brian Tarbit, Brian Adger, Paul Willett
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Patent number: 5738928Abstract: A TAB (tape automated bonding) tape of high precision is formed without the deformations of its conductor pattern and the like and which is hermetically sealed with resin. The method for producing a TAB tape includes punching required holes, such as a device hole 14 and the like, in a metal plate 10 coated with an insulating adhesive layer 12 over the area where a conductor pattern is to be formed; and forming a required conductor pattern 24 by bonding a conductor metal foil onto the adhesive layer and by etching the conductor metal foil. Thus, the material cost of this TAB tape can be reduced and the production of this tape is facilitated.Type: GrantFiled: November 14, 1995Date of Patent: April 14, 1998Assignee: Shinko Electric Industries Co., Ltd.Inventors: Kotaro Kodani, Kazuo Koyanagi, Kiyokazu Sato
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Patent number: 5736241Abstract: Disclosed is a laminate comprising N-alkyl-substituted maleimide-olefin type copolymer and aromatic polycarbonate, wherein the thickness of N-alkyl-substituted maleimide-olefin type copolymer layer x and the thickness of aromatic polycarbonate layer y in the laminate satisfy the following formula.0.4<x/(x+y)<0.98A laminate with excellent transparency, heat resistance, strength and rigidity that improves low impact resistance having been a drawback of N-alkyl-substituted maleimide-olefin type copolymers is provided.Type: GrantFiled: March 6, 1996Date of Patent: April 7, 1998Assignee: Tosoh CorporationInventors: Hiroshi Inoue, Toru Doi
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Patent number: 5736242Abstract: A support for a photographic printing paper comprising a substrate having a back side on which side an emulsion layer is not coated and a front side, and both sides of the substrate are coated with a waterproof resin coating. The waterproof resin coating on the back side of the substrate is a multi-layer laminate comprising an upper resin layer and a lower resin layer provided nearer to the substrate than the upper layer. The lower resin layer contains high density polyethylene having an MFR of not less than 8 in an amount of not less than 90% by weight based on the total weight of resin. Furthermore, the lower resin layer is thinner than the upper layer.Type: GrantFiled: December 28, 1995Date of Patent: April 7, 1998Assignee: Fuji Photo Film Co., Ltd.Inventor: Shinji Kato
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Patent number: 5736258Abstract: A shrink film comprising a blend of copolymers of ethylene and one or more alpha-olefins having 3 to 12 carbon atoms formed in situ, said blend having a melt index in the range of about 0.2 to about 3.5 grams per 10 minutes; a melt flow ratio in the range of about 50 to about 175; a molecular weight in the range of about 90,000 to about 225,000; a Mw/Mn ratio of at least about 8; and a density in the range of 0.910 to 0.940 gram per cubic centimeter, said shrink film being formed at a blow up ratio in the range of about 2:1 to about 6:1 and having the following properties:(i) at about 135 degrees C., a shrinkage of at least about 50 percent in the machine direction and zero or positive shrinkage in the transverse direction;(ii) melt stress is zero or positive kilopascals; and(iii) a cooled stress of at least about 0.35.times.10.sup.3 kilopascals.Type: GrantFiled: July 3, 1996Date of Patent: April 7, 1998Assignee: Union Carbide Chemicals & Plastics Technology CorporationInventor: Francis H. Moy
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Patent number: 5733943Abstract: Reground rubber from used tires is mixed with a styrene-butadiene copolymer and polypropylene or polyethylene. The mixture is placed under temperatures and pressures to form a plasticized, moldable material, which is then injected into a mold to form sheet material suitable for street signs and other products. Alternatively, acetal resin is substituted for the polypropylene or polyethylene. Alteratively, a moldable product is formed from 75% reground rubber and 25% styrene-butadiene copolymer, which is then combined with ground polypropylene and virgin rubber, in which the combination is comprised of 25% virgin rubber, by weight. The combination is then partially plasticized under temperature and pressure, and then injected into a mold to form sheet material for street signs and other products.Type: GrantFiled: February 7, 1996Date of Patent: March 31, 1998Inventor: Rosetta C. Doan
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Patent number: 5731072Abstract: A continuous process is disclosed for producing a strip of decorated ski coating material from ultra-high molecular weight polyethylene. A 0.5 to 1.5 mm thick strip of ski coating material produced in a screw-type or piston-type extruding machine or by sintering followed by peeling and printed with thermodiffusion dyes continuously runs through a heating zone in which it is uniformly heated up to a temperature above 140.degree. C., so that the crystalline structure of the ultra-high molecular weight polyethylene is partially decomposed and the thermodiffusion dye diffuses into the molten ski coating material without the need for an intermediate carrier.Type: GrantFiled: January 26, 1996Date of Patent: March 24, 1998Assignee: Isosport Verbundbauteile Gesellschaft m.b.H.Inventor: Robert Schamesberger
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Patent number: 5721028Abstract: The present invention provides a strong heat seal to a thermoplastic polyester container which can withstand hot water treatment such as retorting, and to a heat sealed container. A heat-sealable closure is also provided. It is composed of a laminate consisting of a heat-seal layer comprising as a main component a copolymerized polyester resin having a softening temperature of 120.degree. C. and a glass-transition temperature of 30.degree. to 85.degree. C., a metal substrate, and an epoxy-phenol resin primer layer interposed between them.Preferably, the container has a heat seal portion composed of a thermoplastic polyester having a fusion temperature in the crystalline state of at least 200.degree. C. This polyester portion is oriented and crystallized or heat-crystallized.Type: GrantFiled: January 5, 1993Date of Patent: February 24, 1998Assignee: Toyo Seikan Kaisha, Ltd.Inventors: Kouji Suzuki, Tsuneo Imatani, Hideo Kurashima, Kazuo Taira
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Patent number: 5721046Abstract: A composite air bag assembly door is disclosed, comprising, an outer-surface layer, a flexible polyurethane foam layer, and a structural support. The polyurethane foam used in the door was designed to withstand the high tensile and tear forces generated by deployment of the air bag. The cohesive strength of the form acts as a bonding agent between the surfacing film or film and the structural support or substrate, helping to ensure that the door remains intact.Type: GrantFiled: January 11, 1996Date of Patent: February 24, 1998Assignee: BASF CorporationInventors: James E. Shrewsburg, Timothy S. Winsky, James D. Hass
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Patent number: 5719237Abstract: Coatings are described derived from a curable coating composition comprising:(a) a non-polymeric organic compound having a molecular weight of from 75 to 2000 comprising a plurality of carbamate active hydrogens, and(b) a second component comprising a compound having a plurality of functional groups that are reactive with said carbamate active hydrogens.Type: GrantFiled: November 3, 1994Date of Patent: February 17, 1998Assignee: BASF CorporationInventors: John W. Rehfuss, Walter H. Ohrbom, Donald L. St. Aubin, Robert J. Taylor
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Patent number: 5716696Abstract: An easy-cleavage film comprising a first layer, a second layer and a third layer which contain Nylon 6 (Ny 6), meta-xylylene adipamide (MXD 6) and polyamide elastomer (PAE), in which the film is defined by (1) the content of the components of each layer, (2) the layer ratio of each layer and (3) the orientation ratio, more specifically, (1) the first layer and the third layer having 60 to 85% by weight of Ny 6 content, 15 to 40% by weight of MXD 6 content and 0.1 to 10.0% by weight of PAE content, the second layer having 0 to 40% by weight of Ny 6 content, 60 to 100% by weight of MXD 6 content and 0.1 to 10.Type: GrantFiled: November 29, 1995Date of Patent: February 10, 1998Assignee: Idemitsu Petrochemical Co., Ltd.Inventors: Masao Takashige, Takeo Hayashi, Takehiro Iwamoto
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Patent number: 5714258Abstract: An improved polyester fiber, polymer composition for producing such fibers by spinning and drawing, and a process for improving the production of fibers from polyester is disclosed wherein an aliphatic diester such as ethylene glycol distearate is incorporated into the polyester resin prior to spinning fibers from the resin in trace amounts of from about 0.01 to about 0.4 percent by weight of the polyester. The composition improves the process of spinning and drawing fibers from the resin and produces superior fibers.Type: GrantFiled: December 28, 1995Date of Patent: February 3, 1998Assignee: Hoechest Celanese CorporationInventor: F. Holmes Simons
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Patent number: 5709953Abstract: An extrudable adhesive composition is provided which is useful for bonding a layer of a polystyrene resin to a layer of a second resin. The extrudable adhesive composition comprisesA) an ethylene polymer fraction at between about 35 and about 65 wt percent relative to the total of A) plus B), the ethylene polymer fraction comprising an ethylene polymer, copolymer or mixture of ethylene polymers and copolymers, each ethylene polymer or copolymer being formed from at least about 60 weight percent ethylene monomers, balance other copolymerizable monomers, and the ethylene polymer fraction A) being formed, in total, of at least about 65 weight percent ethylene monomers, balance, other copolymerizable monomers, andB) between about 35 and about 65 wt %, relative to total of A) plus B), of a styrene/aliphatic/styrene triblock elastomer, between about 20 and about 60 wt % of said triblock elastomer comprising styrene monomers.The MI.sub.2(SB).sup.2 /MI.sub.2(PE) is about 1.0 or above.Type: GrantFiled: February 21, 1996Date of Patent: January 20, 1998Assignee: Morton International, Inc.Inventors: Sumio Goto, Mark S. Pucci, John Machonis, Jr., Mitsu Shida