Of Adhesive Layers Patents (Class 428/214)
  • Patent number: 6548180
    Abstract: An aromatic polyimide film of polyimide composed of a 3,3′,4,4′-biphenyltetracarboxylic acid component and a p-phenylenediamine component, which has a thickness of 35 to 55 &mgr;m and is employed for manufacturing a polyimide film/metal film laminate, preferably has a linear thermal expansion coefficient of 17×10−6 to 24×10−6 cm/cm/° C. (TD) in the temperature range of 50-200° C., and a modulus of tensile elasticity of 700 kgf/mm2 or more (TD), and has a surface having been subjected to discharge treatment.
    Type: Grant
    Filed: October 2, 2001
    Date of Patent: April 15, 2003
    Assignee: Ube Industries, Ltd.
    Inventors: Tomohiko Yamamoto, Takuji Takahashi, Kohji Narui, Hiroto Mitsui, Norihisa Komoda
  • Patent number: 6521825
    Abstract: The present invention provides a light and thin backside covering material for a solar cell module which is excellent in moisture resistance and durability and has a good insulator without causing a short circuit with underlying wire nor leak current. Also the invention provides a durable and high performance solar cell module using this backside covering material as a rear surface protection member. The backside covering material for a solar cell module is a three-layer laminated film, wherein a moisture resistant film is sandwiched with two films having heat resistance and weather resistance. A deposited layer 5 of inorganic oxide is formed on a surface of a base film 4 to make the moisture resistant film 3.
    Type: Grant
    Filed: February 11, 2002
    Date of Patent: February 18, 2003
    Assignee: Bridgestone Corporation
    Inventors: Teruo Miura, Kazuyoshi Akuzawa, Yasuhiro Morimura
  • Patent number: 6506445
    Abstract: A versatile method for the manufacturing of image transfer sheets which provide users with cold transferring images without using supplemental heat in the course of image transfer to a wide variety of substrates includes printing an image with water-based ink onto an image transfer sheet that has a coating of water-accepting adhesive. A method of manufacturing image transfer sheets includes first applying a water impermeable layer onto a flexible substrate. A layer of water-activatable adhesive is applied upon the water impermeable layer. The adhesive is then dried in a dryer with dehumidified air. A water permeable detack layer is then applied upon the layer of adhesive. In a particular embodiment, the sheet further includes a water-accepting image holding layer in between the water-accepting adhesive layer and the water impermeable layer. The image holding layer becomes water-resisting when heated to within a range of activation temperatures.
    Type: Grant
    Filed: July 13, 2001
    Date of Patent: January 14, 2003
    Assignee: Avery Dennison Corporation
    Inventors: Ghanshyam H. Popat, Shiaonung Su, Thomas Mammen, Frederick Miekka, Andre Saint, Brett Ulrich, Omar Attia
  • Patent number: 6479119
    Abstract: A self-adhesive laminate for sealing window frames includes an aluminum layer having a first side and a second side, a polyester layer adhered to the first side of the aluminum layer, an adhesive layer adhered to the second side of the aluminum layer, and a release paper overlying the adhesive remote from the aluminum layer. This laminate reduces or eliminates the overheating problems common in prior art tapes.
    Type: Grant
    Filed: July 28, 2000
    Date of Patent: November 12, 2002
    Assignee: MFM Building Products Corp.
    Inventor: Robert S. Simpson
  • Patent number: 6468640
    Abstract: In a green laminate body including a plurality of base green layers and a plurality of constraining green layers for forming a monolithic ceramic substrate by using a non-shrinking process, when the thicknesses of the base green layers differ from each other, a thicker base green layer shrinks largely during sintering, and hence, the resulting monolithic ceramic substrate may warp in some cases. In order to solve this problem, the constraining green layers, which are in contact with the main surfaces of the individual base green layers, have different thicknesses so that a relatively thicker constraining green layer is in contact with a relatively thicker base green layer, and a relatively thinner constraining green layer is in contact with a relatively thinner base green.
    Type: Grant
    Filed: April 6, 2001
    Date of Patent: October 22, 2002
    Assignee: Murata Manufacturing Co., Ltd.
    Inventors: Mitsuyoshi Nishide, Norio Sakai, Akira Baba
  • Publication number: 20020150744
    Abstract: A laminated glass having a surface density of at most 12 kg/m2 and comprising a plurality of glass sheets laminated one on another with an interliner provided between the respective adjacent glass sheets, wherein the interliner has an ability to shield infrared rays and an ability to insulate sounds having a frequency of 5,000 Hz.
    Type: Application
    Filed: March 1, 2002
    Publication date: October 17, 2002
    Applicant: ASAHI GLASS COMPANY, LIMITED
    Inventor: Kuniko Nagai
  • Patent number: 6455141
    Abstract: The defect known as “applesauce” is eliminated from laminated glass structures which include an intermediate plastic film carrying an energy reflective layer by adhering this film to one of the glass sheets of the laminate with an adhesive layer which is less than 5 mils (0.127 mm) thick.
    Type: Grant
    Filed: February 20, 1998
    Date of Patent: September 24, 2002
    Assignee: Southwall Technologies Inc.
    Inventors: F. Eugene Woodard, Louis C. Lau
  • Patent number: 6450994
    Abstract: Apparatus for multi-dose delivery of preservative-free pharmaceuticals includes a film laminate flexible container for holding and maintaining a sterile drug formulation. A nozzle disposed within the container and in fluid communication therewith provides for dropwise dispensing of the formulation from the flexible container. The nozzle includes an interface established by inner and outer portions of the nozzle which is normally sealed. The nozzle out of portion is sufficiently flexible to enable expansion thereof and passage of the dry formulation therethrough by a piston which withdraws selected volumes of the formulation from the container.
    Type: Grant
    Filed: March 15, 2000
    Date of Patent: September 17, 2002
    Assignee: Allergan, Inc.
    Inventors: James V. C. Boyles, John S. Kent
  • Publication number: 20020098344
    Abstract: An optical-use adhesive film includes a substrate film formed of a biaxially oriented polyester film; and a polymeric adhesive layer provided on at least one surface of the substrate film. The optical-use adhesive film has a haze of 1.0% of less, and the substrate film contains foreign substance particles having a maximum size of about 20 &mgr;m or more at a ratio of about 10/m2 or less.
    Type: Application
    Filed: May 18, 1999
    Publication date: July 25, 2002
    Inventors: NAOKI MIZUNO, MIKIO MATSUOKA
  • Patent number: 6416857
    Abstract: The invention is a tamper indicating device including a backing. The backing includes a first phase and a second phase. The backing is normally light transmissive, but a peeling force causes the backing to internally delaminate and become opaque. A first skin layer is fixed to the backing wherein the skin layer minimizes pre-destruction of the backing. A layer of adhesive is applied to the first skin layer, which can be affixed to a substrate.
    Type: Grant
    Filed: October 25, 2000
    Date of Patent: July 9, 2002
    Assignee: 3M Innovative Properties Company
    Inventors: Mark A. Wright, Raymond R. Rivera, Thomas P. Hanschen, Julian B. Cooley, Raymond R. Gosselin
  • Patent number: 6406763
    Abstract: A multilayer, heat-shrinkable food packaging film useful for forming a post packaging pasteurization bag. The film includes at least three layers: 1) a first outer layer formed from a resin composition having a Vicat softening point of at least 100° C., 2) a second outer layer having one or more thermoplastic gloss materials of polyester, ethylene/alpha-olefin copolymer having a melt index of greater than 1 g/10 minutes, styrene/butadiene block copolymer, and ethylene/styrene random copolymer, and 3) one or more inner layers between the first and second outer layers. At least one of the inner layers includes an ethylene/alpha-olefin copolymer. The film has a total free shrink of at least 40% at 85° C. If the second outer layer includes polyester, then each of the inner layers of the multilayer film is devoid of a weight amount of polyamide or polyester greater than the weight amount of polyester in the second outer layer.
    Type: Grant
    Filed: December 23, 1999
    Date of Patent: June 18, 2002
    Assignee: Cryovac, Inc.
    Inventors: John R. Wolf, George D. Wofford, Blaine C. Childress
  • Patent number: 6403189
    Abstract: A unitary stack of paper sheets has alternating individual paper sheets and double release liners which are releasably bonded together in a manner whereby an individual paper sheet is easily removed and used as a base. Each paper sheet in the unitary stack has a pressure sensitive adhesive partially covering each face thereof in approximate aligned areas of the respective faces. In use, an individual paper sheet is readily removed from the unitary stack and one or more release liners removed from the individual sheet to fully expose the front face and the back face of the individual sheet. The front face or the back face of the individual sheet is then adhered to the substrate, and an item posted on its opposed face.
    Type: Grant
    Filed: February 7, 2000
    Date of Patent: June 11, 2002
    Assignee: P. R. Donahue Incorporated
    Inventor: P. Richard Donahue
  • Patent number: 6383678
    Abstract: A separator for an electrochemical fuel cell provides a path for a fuel gas or an oxidative gas to an electrode and functions as a wall of a unit cell of the electrochemical fuel cell. The separator comprises a conductive metal plate, a conductive coating membrane, and a tight coating membrane. The conductive coating membrane coats the conductive metal plate where the separator contacts the electrode. The tight coating membrane coats the conductive metal plate where the conductive coating membrane does not coat the conductive metal plate. A conductivity of the conductive coating membrane is higher than the tight coating membrane, and the tight coating membrane has a tighter adhesion to the conductive metal plate than the conductive coating membrane. The conductive coating membrane comprises carbon, a precious metal, or an alloy of nickel and chromium. The tight coating membrane comprises a close-grained resin.
    Type: Grant
    Filed: December 1, 1999
    Date of Patent: May 7, 2002
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Michiyo Kaneko, Seiji Mizuno
  • Patent number: 6379784
    Abstract: An aromatic polyimide laminate composed of an aromatic polyimide composite film, a metal film, and a release film is disclosed. The aromatic polyimide composite film is composed of an aromatic polyimide substrate film and two thermoplastic aromatic polyimide layers. Each thermoplastic layer is fixed to each surface of the substrate film. The substrate film has no glass transition temperature of lower than 350° C., and the thermoplastic aromatic polyimide layer has a glass transition temperature of 190-280° C. The metal film is fixed, with no intervening adhesive layer, to one thermoplastic aromatic polyimide layer at a 90° peel strength of 0.8 kg/cm or more and the release film is fixed, with no intervening adhesive layer, to another thermoplastic aromatic polyimide layer at a 90° peel strength of 0.001-0.5 kg/cm, under such condition that the latter peel strength is one half or less of the former peel strength.
    Type: Grant
    Filed: September 27, 2000
    Date of Patent: April 30, 2002
    Assignee: Ube Industries, Ltd.
    Inventors: Tomohiko Yamamoto, Katsumi Kato, Toshinori Hosoma, Kazuhiko Yoshioka
  • Patent number: 6365254
    Abstract: A release liner providing more roll stability (i.e., the coils forming the roll are less likely to fall apart when the roll is held suspended along its outer circumferential edge) when used with double-sided tape having a heat activated adhesive (“HAA”) side and a pressure sensitive adhesive (“PSA”) side. The release liner includes a front liner side comprising a release layer in contact with, bonded to and readily removable from the PSA side and a back liner side comprising a roll stability layer. The roll stability layer comprises an ethylene vinyl acetate and contacts the HAA side when the adhesive tape assembly is formed into a roll.
    Type: Grant
    Filed: February 2, 1998
    Date of Patent: April 2, 2002
    Assignee: 3M Innovative Properties Company
    Inventors: Panu K. Zoller, Eugene G. Hennen
  • Patent number: 6340518
    Abstract: A flexible metal foil laminate sheet wherein a polyimide layer comprises a polyimide laminate having a three-layer structure in which thermoplastic polyimide layers are formed on both the surfaces of a polyimide film; metal foil layers are heated and pressed against both the sides of the polyimide laminate; and the thickness of the thermoplastic polyimide layer is 100% or more of an average roughness at 10 points on the surface of the metal foil which contacts the thermoplastic polyimide layer; and a method for manufacturing the flexible metal foil laminate sheet. According to the present invention, there can be manufactured the flexible metal foil laminate sheet in which a necessary and sufficient adhesive force is present in an interface between a metal foil and an insulating layer and which is excellent in heat resistance, chemical resistance, electrical properties and the like.
    Type: Grant
    Filed: March 16, 1999
    Date of Patent: January 22, 2002
    Assignee: Mitsui Chemicals, Inc.
    Inventors: Mikio Kitahara, Minehiro Mori, Naoshi Mineta, Takashi Kayama
  • Patent number: 6333094
    Abstract: The present invention relates to a multilayer thermoformable composite synthetic veneer film, furniture parts produced therefrom, and a process for producing the same. The base layer comprising polyolefin has a thickness of 100 to 500 &mgr;m and a particular composition and is composed of at least three different polyolefins. The film also includes at least one intermediate layer in the form of at least one primer layer, bonding layer or bonding film or, respectively, bonding layer; an optional printing layer, coloring layer or color-printing layer arranged over part or all of the surface; at least one polyester-containing single- or multiple-layer-structure layer or film; at least one bonding layer, adhesion-promoting layer or reactant layer on the side of the base layer that is to be applied to a substrate; and a surface-covering layer on the top of the film.
    Type: Grant
    Filed: September 17, 1999
    Date of Patent: December 25, 2001
    Assignee: Alkor GmbH Kunststoffe
    Inventors: Manfred Schneider, Egon Ewald
  • Patent number: 6287683
    Abstract: Disclosed herein is an anti-fogging coating formed on the surface of an optical substrate, wherein the anti-fogging coating comprises a water-absorbing film and a porous film in the order near to the surface of the substrate.
    Type: Grant
    Filed: April 7, 1998
    Date of Patent: September 11, 2001
    Assignee: Canon Kabushiki Kaisha
    Inventors: Susumu Itoh, Shoichi Shimura, Hideyuki Hatakeyama, Hideo Ukuda
  • Patent number: 6280847
    Abstract: An intrusion resistant laminated glazing, suitable for automotive use, comprises an impact resistant ply of rigid thermoplastic polyurethane sensitive to ultra-violet radiation and, outside said ply, an ultra-violet absorbing or reflecting ply. The ultra-violet absorbing ply may be of thermoplastic polyurethane interlayer material which serves to bond the rigid thermoplastic polyurethane ply to outer glass plies. By using interlayer materials of low modulus to bond the rigid thermoplastic ply to outer glass plies, a product with good impact resistance and intrusion resistance is achieved.
    Type: Grant
    Filed: May 1, 1998
    Date of Patent: August 28, 2001
    Assignee: Pilkington PLC
    Inventors: Philip Harold Corkhill, Malcolm Francis Green, Neil Winstanley, Paul Arthur Holmes
  • Patent number: 6274213
    Abstract: A double-faced adhesive tape without release liner is provided. A weakly adhesive layer 12 having a relatively weak adhesive force is formed on one face of a resin film 11 and a strongly adhesive layer 13 having a stronger adhesive force than that of the weakly adhesive layer 12 is formed on the other face and the assembly is formed into a roll of a double-faced adhesive tape 5. The weakly adhesive layer 12 is formed after the surface of the resin film 11 has been subjected to a rubbing treatment to increase the adhesive force between them, so that the weakly adhesive layer 12 and the strongly adhesive layer 13 are separated without using a release liner when the tape is rolled up.
    Type: Grant
    Filed: June 23, 1999
    Date of Patent: August 14, 2001
    Assignee: Sony Chemicals Corp.
    Inventor: Tadasu Kawashima
  • Publication number: 20010010860
    Abstract: A metal film, particularly, a stainless steel film having been not subjected to roughing treatment, and an aromatic polyimide substrate film having a thermoplastic surface can be combined with a high bonding strength to form a metal film/aromatic polyimide film laminate, utilizing an amorphous aromatic polyimide film of 0.05 to 3 &mgr;m thick which has a glass transition temperature in the range of 200 to 300° C.
    Type: Application
    Filed: January 31, 2001
    Publication date: August 2, 2001
    Applicant: Ube Industries, Ltd.
    Inventors: Hiroaki Yamaguchi, Fumio Aoki
  • Patent number: 6265054
    Abstract: The invention relates to a composite glazing material of the type including two sheets of glass and an interlayer of transparent plastic of greater thickness than the thickness of the sheets of glass, characterized in that the plastic is capable of adhering to the glass. The glazing material has a total thickness smaller than 5 mm, a ratio of the thickness of the interlayer to the thickness of the sheets of glass of between 1 and 10, a mass per unit area lower than 6 kg/m2 and a Young's modulus higher than 30 GPa at a total thickness of glazing material of 3 mm.
    Type: Grant
    Filed: June 25, 1997
    Date of Patent: July 24, 2001
    Assignee: Saint-Gobain Vitrage
    Inventors: Jean-Louis Bravet, Bernard Bureau, Claude Morin, Christian Padoy, Boris Vidal
  • Patent number: 6251507
    Abstract: A flexible aromatic polyimide film/metal film composite sheet is composed of a multi-layered polyimide film having a highly heat-resistant aromatic polyimide layer to one surface of which is bonded another aromatic polyimide layer (in which the multi-layer polyimide film is prepared by simultaneous casting), and a metal film which is bonded to the latter polyimide layer by heating under pressure and subsequent cooling under pressure using a double belt press.
    Type: Grant
    Filed: September 29, 1999
    Date of Patent: June 26, 2001
    Assignee: Ube Industries, Ltd.
    Inventors: Tomohiko Yamamoto, Toshinori Hosoma, Kazuhiko Yoshioka
  • Patent number: 6248414
    Abstract: A unitary stack of paper sheets has alternating individual paper sheets and individual release liners which are loosely bonded together in a manner whereby an individual paper sheet is easily removed and used as a base. Each paper sheet in the unitary stack has a pressure sensitive adhesive partially covering each face thereof in approximate aligned areas of the respective faces. A back face of the individual sheet is adhered to a substrate while a front face holds an item for posting. In use, an individual paper sheet is readily removed from the unitary stack, adhered on its back face to the substrate, and then an item posted on its front face.
    Type: Grant
    Filed: October 8, 1998
    Date of Patent: June 19, 2001
    Assignee: P. R. Donahue Incorporated
    Inventor: P. Richard Donahue
  • Patent number: 6235386
    Abstract: A pressure-sensitive sealing tape product for adhering to various items in applications involving taping and sealing, and having sufficient body to permit dispensing from a conventional pull and tear tape dispenser. The tape includes a paper layer; a water-impermeable plastic film layer having a first corona-discharge treated surface which is adhesively laminated to the paper layer to form a paper-plastic film laminate having first and second opposed outer surfaces; and an exposed layer of a pressure-sensitive adhesive coating on one of the first or second outer surfaces. The plastic film portion of the laminate has a strength sufficient to allow the film to be stripped in one piece from an item to which the laminate is adhered. The tape product may, if desired, additionally comprise a layer of a release agent upon an uncoated one of the first and second opposed outer surfaces of the laminate.
    Type: Grant
    Filed: February 26, 1999
    Date of Patent: May 22, 2001
    Inventors: Gilbert Bloch, Gerald Bloch, Arnold B. Finestone
  • Patent number: 6194044
    Abstract: An emblem for embroidery stitching directly to a substrate is disclosed which provides an emblem which can be readily embroidered. The emblem includes a fabric layer with a thermoplastic adhesive coating one side of the fabric layer and a pressure sensitive adhesive coating the thermoplastic adhesive to provide an emblem which can temporarily adhere to a substrate. The emblem can thus be temporarily secured during embroidery and prevent distortion of the emblem. Following embroidery, the emblem is heat-sealed to a substrate and the thermoplastic adhesive coating penetrates through the pressure sensitive adhesive for attachment of the emblem to the substrate.
    Type: Grant
    Filed: February 2, 1996
    Date of Patent: February 27, 2001
    Assignee: Stahls' Inc.
    Inventor: Ted A. Stahl
  • Patent number: 6171680
    Abstract: A composite sheathing material comprises a first layer of paperboard having a layer of a permeable resin on a surface thereof, a core layer of paperboard, a first adhesive layer positioned intermediate and adhered to the first layer of paperboard and the core layer of paperboard, said first adhesive layer including a plurality of apertures therethrough, a second layer of paperboard having a second layer of a permeable resin on a surface thereof, and a second adhesive layer positioned intermediate and adhered to the second layer of paperboard and the core layer of paperboard, said second adhesive layer including a plurality of apertures therethrough.
    Type: Grant
    Filed: June 19, 1998
    Date of Patent: January 9, 2001
    Assignee: K2, Inc.
    Inventor: Mohamed A. Fahmy
  • Patent number: 6165602
    Abstract: A laminated polyester film stretched in at least one direction, comprising:a polyester support, andat least one enhanced adhesion layer laminated on the polyester support, comprising a composition comprising:(1) an aromatic copolyester (A1) having a water-dispersible functional group, a polyvinyl alcohol resin (B1), and a vinylpyrrolidone copolymer resin (C1); or(2) an aromatic copolyester (A1) having a water-dispersible functional group, a polyvinyl alcohol resin (B1), and a polyglycerol polyglycidyl ether (C2); or(3) an aqueous-type polyurethane (A3), a polyvinyl alcohol resin (B3), and inert particles wherein the thickness (L) of the adhesion layer and the average particle diameter (d) of said inert particles satisfies the equation1/3.ltoreq.d/L.ltoreq.3.
    Type: Grant
    Filed: June 11, 1998
    Date of Patent: December 26, 2000
    Assignee: Mitsubishi Polyester Film Corporation
    Inventor: Masato Fujita
  • Patent number: 6156417
    Abstract: The present invention is a laminated glazing comprising a rigid thermoplastic polyurethane sheet or film sandwiched between and adhering to an outer glass sheet and an inner glass sheet. This glazing can be made to be sufficiently thin to make it particularly suitable for intrusion-resistant automotive applications.
    Type: Grant
    Filed: January 8, 1999
    Date of Patent: December 5, 2000
    Assignee: The Dow Chemical Company
    Inventors: Christopher Michael Edwards, Edward Louis d'Hooghe
  • Patent number: 6153289
    Abstract: A laminate comprises:a first layer of thickness between 75 .mu.m and 150 .mu.m of a polyester material not being absorbent of xerographic toner and having an image deposited on a first surface thereof by an electrostatic deposition process,a second layer of optically transparent or translucent plastics material,a first surface of the first layer being bonded to the second layer by a layer of optically transparent adhesive material, in a lamination process involving heat and pressure to ensure that the relief of the deposited image is apparent in the laminate through the second layer,the arrangement being such that the image on the first layer can be viewed through the second layer and the layer of optically transparent adhesive material.
    Type: Grant
    Filed: September 30, 1997
    Date of Patent: November 28, 2000
    Inventor: Nicholas J. Murray
  • Patent number: 6141921
    Abstract: A weather barrier kit is provided comprising double-faced tape used to bond a film to a window frame and a folded and rolled sheet of film having a stiffening band and strip of adhesive across the top. The provision of a stiffening band with adhesive thereon across the top of the film allows one to apply the film squarely, without stretching and without the need of measuring beforehand.
    Type: Grant
    Filed: April 30, 1999
    Date of Patent: November 7, 2000
    Assignee: Manco, Inc.
    Inventors: Peter Leeuwenburgh, Randy T. Lear
  • Patent number: 6117532
    Abstract: An oriented polyester film coated on at least one surface with a coating that improves its adhesion to gelatin is disclosed. The dry coating contains one or more sulfopolyesters; one or more tetrablock copolymer resins; and one or more non-volatile polyamines. Other ingredients, such as particulate materials and surfactants, may be present in the coating. The coating is preferably applied at the interdraw stage.
    Type: Grant
    Filed: October 30, 1997
    Date of Patent: September 12, 2000
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Junaid Ahmed Siddiqui, Cornell Chappell, Jr
  • Patent number: 6114021
    Abstract: This invention covers a film base wherein polymers forming a polymeric film surface and selected from polyesters, polyolefins and polyamides are coated with an adhesion enhancing primer coating containing (a) a functionalized .alpha.-olefin containing copolymer; and (b) a crosslinking agent selected from the group consisting of amino formaldehyde resins, polyvalent metal salts, isocyanates, blocked isocyanates, epoxy resins and polyfunctional aziridines; and wherein the adhesion enhancing primer coating is applied to the polymeric film surface and reacted, at elevated temperatures with newly generated polymeric film surfaces formed during uniaxial or biaxial stretching and heat setting.
    Type: Grant
    Filed: July 16, 1996
    Date of Patent: September 5, 2000
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Richard Paul Pankratz, Clifford Cheng-Shiou Chang, Marc Bandman
  • Patent number: 6113998
    Abstract: A metal/synthetic resin laminate comprising a metal substrate layer, an epoxy resin-based adhesive layer (a "1st adhesive layer"), an adhesive layer (a "2nd adhesive layer") comprising an epoxidized styrenic thermoplastic elastomer D prepared through epoxidation of a double bond derived from a conjugated diene compound of a block copolymer C comprising a polymer block A composed mainly of a styrenic compound and a polymer block B composed mainly of a conjugated diene compound or a partial hydrogenation product thereof, and a synthetic resin layer; and a synthetic resin-clad metallic pipe wherein the above metal substrate layer is tubular.
    Type: Grant
    Filed: June 4, 1998
    Date of Patent: September 5, 2000
    Assignee: Daicel Chemical Industries Ltd.
    Inventors: Katsumi Aizawa, Yoshihiro Ohtsuka
  • Patent number: 6080836
    Abstract: A method is provided for preparing the surface of a cyanate ester resin composite for metal plating. More particularly, a layer consisting essentially of cyanate ester resin is applied to the surface of the composite. Thereafter, the surface of the resin layer is etched, preferably by treatment with an etching solution containing either a quaternary ammonium hydroxide or a primary amine. Upon completion of the etching process, the cyanate ester resin layer may be successfully plated with metal. The method of the invention operates to improve adhesion between the cyanate ester resin composite and a subsequently-plated metal by providing the composite with a homogenous distribution of mechanical anchoring sites for a subsequently-plated metal, such that uniformity of adhesion is achieved.
    Type: Grant
    Filed: March 20, 1997
    Date of Patent: June 27, 2000
    Assignee: Hughes Electronics Corporation
    Inventors: Brian M. Punsly, Thomas G. Wong
  • Patent number: 6074732
    Abstract: The invention relates to a soundproofing window in which an intermediate film provides for damping of vibrations transmitted in particular by structure-borne conduction.
    Type: Grant
    Filed: November 25, 1997
    Date of Patent: June 13, 2000
    Assignee: Saint Gobain Vitrage
    Inventors: Gilles Garnier, Marc Rehfeld, Franz Kraemling
  • Patent number: 6074729
    Abstract: A pressure-sensitive adhesive sheet 1A is for use by sticking onto a liquid crystal cell, and it has a construction wherein the pressure-sensitive adhesive layer 3 is joined to one side of the base material layer 2 which is constructed with a light-polarizing sheet and a release sheet 4 stuck onto the other side from the base material layer 2 of the pressure-sensitive adhesive layer 3. The pressure-sensitive adhesive layer 3 is constructed as a laminate with the layers 31 and 32. An acrylic-based pressure-sensitive adhesive, for example, can be used for the pressure-sensitive adhesives from which the layers 31 and 32 are constructed, but the shear elastic modulus or the relaxation elastic modulus of the layer 32 is set lower than that of the layer 31 as a result of a difference in the composition of the pressure-sensitive adhesive, the degree of crosslinking or the amount of plasticizer added in the layers 1 and 32.
    Type: Grant
    Filed: July 10, 1996
    Date of Patent: June 13, 2000
    Assignee: Lintec Corporation
    Inventors: Shunpei Watanabe, Takashi Suzuki, Shuuichiro Ikeda
  • Patent number: 6048605
    Abstract: A composite sheathing material comprises a first layer of paperboard having a layer of a permeable resin on a surface thereof, a core layer of paperboard, a first adhesive layer positioned intermediate and adhered to the first layer of paperboard and the core layer of paperboard, said first adhesive layer comprising a controlled distribution of thicker and thinner adhesive portions, a second layer of paperboard having a second layer of a permeable resin on a surface thereof, and a second adhesive layer positioned intermediate and adhered to the second layer of paperboard and the core layer of paperboard, said second adhesive layer comprising a controlled distribution of thicker and thinner adhesive portions.
    Type: Grant
    Filed: November 17, 1998
    Date of Patent: April 11, 2000
    Assignee: K2, Inc.
    Inventor: Robert E. Doyle
  • Patent number: 6045895
    Abstract: The present invention provides unified multilayer films having at least one internal layer that includes a pressure sensitive adhesive material. Preferably, multilayer films of the present invention are no greater than about 250 micrometers (.mu.m) thick. In particularly preferred embodiments of the present invention, multilayer films include layers that include a pressure sensitive adhesive material alternating with layers that include a material that is not a pressure sensitive adhesive. In other preferred embodiments, multilayer films include alternating layers of different pressure sensitive adhesive materials.
    Type: Grant
    Filed: December 1, 1997
    Date of Patent: April 4, 2000
    Assignee: 3M Innovative Properties Company
    Inventors: Patrick D. Hyde, Richard A. Kollaja, Dennis L. Krueger, Douglas A. Devens, Jr., Gregory B. Gadbois
  • Patent number: 6015606
    Abstract: An adhesive film for decoration prepared by coating an adhesive on a surface of a film substrate, characterized in that the adhesive has microspheres, an elastic modulus of the to 1 microspheres is 1.times.10.sup.4 to 1.times.10.sup.7 dyn/cm.sup.2 and their particle diameter is 10 to 100 .mu.m (volume average diameter).
    Type: Grant
    Filed: April 7, 1997
    Date of Patent: January 18, 2000
    Assignee: 3M Innovative Properties Company
    Inventor: Hidetoshi Abe
  • Patent number: 6015607
    Abstract: A flexible laminate for use in flexible circuitry including at least one layer of a flexible film substrate; at least one layer of a metal foil on top of the flexible film substrate; and an adhesive including a polyetherimide, and preferably a siloxane polyetherimide copolymer, present between said flexible film substrate and said metal foil; in which the adhesive bonds the metal foil to the flexible film substrate.
    Type: Grant
    Filed: April 14, 1997
    Date of Patent: January 18, 2000
    Assignee: Fraivillig Materials Company
    Inventor: James Fraivillig
  • Patent number: 6012818
    Abstract: A retroreflective sheet comprises a film having a substantially flat surface and a large number of pyramidal projections having retroreflectivity on the opposite surface, and a colored layer and an adhesive layer disposed on the surface of the film having the projections. The adhesive layer comprises a heat-sensitive adhesive containing an acrylic polymer and a phenolic resin, and exhibits an elastic modulus (by dynamic viscoelasticity measurement, compression mode) at 30.degree. C. ranging from about 1.times.10.sup.6 to 1.times.10.sup.8 dyn/cm.sup.2.
    Type: Grant
    Filed: February 18, 1997
    Date of Patent: January 11, 2000
    Assignee: 3M Innovative Properties Company
    Inventor: Yoshinori Araki
  • Patent number: 6001472
    Abstract: A cleaning device and methodology therefor for cleaning a paper path surface upon which paper travels within a printing apparatus such as a computer printer, a photocopy machine, a fax machine, and the like. The cleaning device is a flexible substrate sheet having a first side and a second side, with the first side coated preferably in its entirety with an exposed adhesive having a tack strength between about 0.0002 and about 0.12 pound force-square inch. The second side of the substrate sheet can have laminated thereto a foam resin to provide a flexible thickness that assures pressured contact with all paper path surfaces to be cleaned. A lint-free cloth layer can be laminated to the foam resin if present, or the cloth layer can be laminated directly to the second surface of the sheet substrate. operability occurs as the substrate sheet is fed into the printing apparatus and travels there through along the paper-path surfaces upon which paper is conveyed.
    Type: Grant
    Filed: October 23, 1998
    Date of Patent: December 14, 1999
    Assignee: No Touch North America
    Inventors: Atsushi Ikeda, Nobuhiro Yoshikawa
  • Patent number: 5997994
    Abstract: The object of the present invention is to provide a pressure-sensitive correction tape having concealing properties and improvements in deterioration with time in an adhesive layer while not causing any blocking phenomenon and being excellent transfer cutting properties. The present invention relates to a pressure-sensitive transfer correction tape comprising a correction concealing layer on one side of a sheet substrate and a pressure-sensitive adhesive layer provided thereon containing a concealing material wherein the thickness in total of the pressure-sensitive adhesive layer and the correction concealing layer is 50 .mu.m or less and the ratio in thickness of the pressure-sensitive adhesive layer and the correction concealing layer is in the range of 1:1 to 1:4.
    Type: Grant
    Filed: October 26, 1998
    Date of Patent: December 7, 1999
    Assignee: Tombow Pencil Co., Ltd.
    Inventor: Kojiro Matsushima
  • Patent number: 5962099
    Abstract: A pressure-sensitive tape for sealing cartons and for other applications requiring a flexible tape of exceptional strength and of sufficient body so that the tape in roll form may be dispensed from a conventional pull-and-tear tape dispenser. The tape is composed of a paper-plastic film laminate having a first ply of biaxially-oriented, synthetic-plastic film, cold-laminated by a water-based adhesive to a second ply formed of paper. The inner surface of the film ply is corona-discharge treated to render it wettable and receptive to the adhesive, thereby producing a strong adhesive bond to the paper ply that is resistant to delamination of the tape. One side of the laminate which may be either the paper or the film side, is coated with a pressure-sensitive adhesive, whereas the other side is coated with a silicone release agent to prevent blocking, whereby the tape may be wound into a roll for loading a tape dispenser.
    Type: Grant
    Filed: March 14, 1994
    Date of Patent: October 5, 1999
    Inventors: Gilbert Bloch, Arnold B. Finestone, Gerald Bloch
  • Patent number: 5955180
    Abstract: The invention relates to a multi-layer film comprising a layer (A) made of a polyamide (a), a layer (B) made of a mixed polyamide (b.sub.3) of a polyamide (b.sub.1) and an aliphatic polyamide (b.sub.2), a layer (C) made of an adhesive polyolefin (c.sub.1) or a mixed resin (c.sub.3) of an adhesive polyolefin (c.sub.1) and a polyolefin (c.sub.2), and a layer (D) made of a polyolefin (d), whereinthe layer constitution is such that the layers are arranged in order of the layer (A)/the layer (B)/the layer (C)/the layer (D), andthe layer (B) is made of a mixed polyamide (b.sub.3) made up of 60 to 95% by weight of a polyamide (b.sub.1) obtained from a diamine comprising 70 mol % or more of meta-xylylenediamine and a dicarboxyic acid comprising 70 mol % or more of an .alpha.,.omega.-aliphatic dicarboxylic acid having 6 to 12 carbon atoms and 40 to 5% by weight of an aliphatic polyamide (b.sub.2) having a semicrystallization time of 30 sec or less at 160.degree. C. and a solubility parameter (SP value) of 13.+-.1.5.
    Type: Grant
    Filed: October 23, 1997
    Date of Patent: September 21, 1999
    Assignee: Mitsubishi Gas Chemical Company, Inc.
    Inventors: Masahiro Harada, Makoto Takahashi, Katsuya Maruyama, Katsuyuki Murai
  • Patent number: 5948515
    Abstract: A silicone rubber composite comprising a sheet or film made essentially of a crystalline polyester resin, and, formed sequentially on at least one side of the sheet or film, an undercoating layer (A) made substantially of an amorphous polymer and a thin film layer (B) having good affinity for the undercoating layer and containing a silicone resin, wherein a silicone rubber layer (C) made of a silicone elastomer resin cured to have a hardness within a range of from 20 to 70 (JIS K6301 spring type hardness test A) is formed on the thin film layer (B), so that the sheet or film and the silicone ruber layer (C) are integrated.
    Type: Grant
    Filed: November 24, 1997
    Date of Patent: September 7, 1999
    Assignee: Mitsubishi Plastics, Inc.
    Inventor: Takeyuki Tsunekawa
  • Patent number: 5932329
    Abstract: In a laminated glass pane comprising two glass sheets (1, 2) and a transparent support film (4) having an infra red reflecting surface coating (3), connected to the two glass sheets (1, 2) by adhesive layers (5, 6), the first adhesive layer (5) has a thickness of at most about 50 .mu.m. The second adhesive layer (6) preferably has a thickness of 0.76 mm.
    Type: Grant
    Filed: August 16, 1996
    Date of Patent: August 3, 1999
    Assignee: Saint-Gobain Vitrage
    Inventors: Thorsten Frost, Heinz Schilde, Manfred Jansen
  • Patent number: 5925432
    Abstract: Disclosed herein is a primerless removable pressure sensitive adhesive construction comprising an unprimed facestock, a first adhesive layer in contact with the facestock, a second removable pressure sensitive adhesive layer in contact with the first adhesive layer, and a release surface in contact with the second adhesive layer. Advantageously, constructions of this design exhibit improved layflatness in comparison to conventional emulsion primed removable pressure sensitive adhesive constructions.
    Type: Grant
    Filed: March 15, 1996
    Date of Patent: July 20, 1999
    Assignee: Avery Dennison Corporation
    Inventors: Kamram Kian, Henk de Koning, Yukihiko Sasaki, Luigi Sartor
  • Patent number: 5914160
    Abstract: An adhesive tube, a composite tube comprising a heat-shrinkable tube having on the inner surface thereof the adhesive tube, and a method for sealing an object having an uneven surface comprising the steps of: inserting the object in the composite tube and then heating the composite tube. The adhesive tube comprises a double-layered thermoplastic resin layer comprising an outer layer and an inner layer, the outer layer having a melt index smaller than that of the inner layer.
    Type: Grant
    Filed: November 3, 1995
    Date of Patent: June 22, 1999
    Assignee: Sumitomo Electric Industries, LTD.
    Inventors: Shigeo Matsufuji, Tomoyoshi Kishimoto