Of Adhesive Layers Patents (Class 428/214)
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Patent number: 5558930Abstract: The present invention provides a multi-layer heat sealable film which is produced by coextrusion and compression rolled orientation. The film comprises at least one barrier layer of a moisture and/or gas resistant thermoplastic material and at least one sealant layer of a heat sealable thermoplastic material.Type: GrantFiled: June 23, 1994Date of Patent: September 24, 1996Assignee: Tredegar Industries, Inc.Inventor: James P. DiPoto
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Patent number: 5538801Abstract: A magnetooptical recording medium of good durability and increased reproducing output comprising a substrate and a coating type magnetic layer with a thickness of not larger than 0.5 .mu.m which is formed on the substrate and comprises a binder and a hexagonal system of ferrite particles dispersed therein, wherein a Kerr rotation angle is at least 0.3 degree when it is measured with a light having a wavelength of 830 nm under a residual magnetization condition after a magnetic field of 10 kOe is applied to the magnetic layer, and the reflectance on the surface of the magnetic layer using a light having a wavelength of 830 nm is at least 30%.Type: GrantFiled: February 7, 1995Date of Patent: July 23, 1996Assignee: Hitachi Maxell, Ltd.Inventor: Mikio Kishimoto
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Patent number: 5534320Abstract: An identification card assembly, made from an intermediate, comprises a carrier sheet with at least one ID card mounted on, and having smaller dimensions than, the carrier sheet. The ID card is connected to repositional adhesive, which in turn is connected through a tie coat to paper label stock, in turn connected by permanent adhesive to the paper carrier sheet. The assembly is constructed from an intermediate which includes a roll of release material on which are provided a number of spaced ID cards and associated adhesive. The carrier sheet is fed through a non-impact printer for variably imaging indicia on the top face of the ID card. A carrier sheet can be made into a mailer.Type: GrantFiled: June 16, 1994Date of Patent: July 9, 1996Assignee: Moore Business Forms, Inc.Inventor: James M. Raby
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Patent number: 5527583Abstract: A structure for attachment of a weather strip to an opening of a vehicle body, which is opened and closed by a closing member. A base portion of the weather strip is bonded with two double-sided adhesive tapes to the vehicle body in the longitudinal direction thereof. The outer double-sided adhesive tape has thickness greater than that of the inner double-sided adhesive tape, and the material of the outer double-sided adhesive tape is softer than that of the inner double-sided adhesive tape.Type: GrantFiled: December 16, 1994Date of Patent: June 18, 1996Assignee: Toyoda Gosei Co., Ltd.Inventors: Masahiro Nozaki, Atsushi Hikosaka
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Patent number: 5527595Abstract: There is provided an adhesive system comprised of a pressure-sensitive adhesive matrix having dispersed therein organic particulate solids having a particle size no greater than 300 microns, and generally no greater than 225 microns, which matrix may have at least one, and generally two, sides coated with an unfilled pressure-sensitive adhesive material, which adhesive materials generally may be acrylic materials. Such adhesive system is one generally provided as a sheet, including elongated tapes, having a thickness of from about 25 to 60 mils.Type: GrantFiled: August 1, 1994Date of Patent: June 18, 1996Assignee: Adco Products, Inc.Inventors: Manuel Slovinsky, Jeffrey R. Tarizzo
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Patent number: 5523146Abstract: A composite includes a first substrate, a second substrate, and a discontinuous adhesive structure disposed intermediate the first and second substrates for securing the first and second substrates together to form a composite without significantly modifying the properties of either of the first and second substrates. The discontinuous adhesive structure is an array of substantially linear filaments or strands of an adhesive.Type: GrantFiled: April 11, 1995Date of Patent: June 4, 1996Assignee: Poly-Bond, Inc.Inventors: Carl A. Bodford, Stephen O. Chester, Rahul K. Nayak
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Patent number: 5520995Abstract: A pre-impregnation has a ribbon-shaped tow of reinforcing fibers and a ribbon of thermoplastic resin laminated on the ribbon-shaped tow and fixed thereto at intervals, and the thermoplastic resin is allowed to uniformly impregnate into the ribbon-shaped tow under heat application so that a void does not take place in the ribbon-shaped tow.Type: GrantFiled: May 11, 1994Date of Patent: May 28, 1996Assignee: Yamaha CorporationInventors: Toshiharu Fukushima, Kunimasa Muroi, Kunio Hiyama
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Patent number: 5508090Abstract: An oriented, heat-sealable, multilayer polyolefin film is described, which includes a base layer containing polypropylene and resin, and at least one heat-sealable outer layer. The heat-sealable outer layer contains a propylene copolymer and/or a propylene terpolymer and a mixture of an antiblocking agent having a mean particle diameter of from 3 to 5 .mu.m and a further antiblocking agent having a mean particle diameter of from 1 to 2.5 .mu.m. In addition, a process for the production of the multilayer polyolefin film and the use of the film are described.Type: GrantFiled: March 17, 1994Date of Patent: April 16, 1996Assignee: Hoechst AktiengesellschaftInventors: Herbert Peiffer, Ursula Murschall, Gunter Schloegl
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Patent number: 5506051Abstract: An improved transparent bullet-proof laminate is formed with an energy absorbing transition layer located between preformed laminae of glass and/or plastic, such as polycarbonate, the transition layer constituting a cured aliphatic urethane acrylate with optionally up to 70% of a monofunctional monomeric acrylate, the transition layer in liquid form having a viscosity preferably no greater than 1000 cps and in cured state having a toughness of at least 0.1 MPa, and elastic modulus no greater than 25 MPa and an elongation of at least 20%.Type: GrantFiled: January 27, 1994Date of Patent: April 9, 1996Assignee: Nicolectronix Ltd. LaboratoriesInventors: Nicole Levy-Borochov, Murray Figov
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Patent number: 5491012Abstract: Use of a strip of an adhesive film for a re-releasable adhesive bond based on thermoplastic elastomer and tackifying resins, the adhesive film having high elasticity and low plasticity and the adhesion being lower than the cohesion, the adhesive strength largely disappearing during extension of the film, the ratio of peel strength to tear strength being at least 1:1.5, and an adhesive bond produced therewith being releasable by pulling on the adhesive film in the direction of the plane of adhesion, one end of the strip being provided on both sides with a UV-opaque covering which at the same time serves as a tab for pulling.Type: GrantFiled: July 1, 1993Date of Patent: February 13, 1996Assignee: Beiersdorf AktiengesellschaftInventors: Bernd Luhmann, Andreas Junghans
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Patent number: 5484636Abstract: A sanitary napkin wrapper and adhesive tab construction for such a wrapper are disclosed. The adhesive tab can, in a preferred embodiment, be applied to the package formed by the wrapper contemporaneously with its own landing member to form a complete fastening system. The sanitary napkin wrapper can also be provided with a flap or pouch in several variations for securing the used sanitary napkin for disposal.Type: GrantFiled: June 3, 1994Date of Patent: January 16, 1996Assignee: The Procter & Gamble CompanyInventors: Charles J. Berg, Jr., Delmar R. Muckenfuhs, William P. Maxam, Jr., Alan E. Byrd, John A. Chang
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Patent number: 5449539Abstract: A ceremonial roll of material that can be easily unrolled and used is described. The roll contains a small layer or strip of releasable adhesive located on the floor surface of the roll within a starting end region of the roll. This adhesive is then pressed onto the floor itself before the roll is rolled down the aisle or walkway to be used. The adhesive will hold to the floor during the unrolling but can easily be removed by pulling up at an angle from the floor. The ceremonial roll may be made from a host of materials but a non-woven material made from long, natural and synthetic fibers is preferred.Type: GrantFiled: January 6, 1995Date of Patent: September 12, 1995Assignee: Hampshire Paper Corp.Inventor: Michael J. Stepanek
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Patent number: 5445870Abstract: A method of producing overpressure valves for packaging containers supplied in a roll, transported in this form to a packaging machine, separated at the machine and attached to packaging containers by means of an adhesive coated surface. For this purpose the overpressure valves have a layer of emulsion bonding on their underside. To prevent individual layers of the roll from sticking together, the overpressure valves have an adhesive-repelling layer on their top side. The overpressure valves are connected to one another in one piece and in a row, and are separated consecutively in a packaging machine.Type: GrantFiled: August 24, 1994Date of Patent: August 29, 1995Assignee: Robert Bosch GmbHInventors: Norbert Buchner, Klaus Domke, Manfred Reichert, Herbert Stotkiewitz, Bernd Wilke, Sabine Zimmermann, Kuno Lemke, Guenther Voegele
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Patent number: 5427839Abstract: Overpressure valves for packaging containers are supplied in a roll, transported in this form to a packaging machine, separated here and attached to packaging containers by means of an adhesive coated surface. For this purpose the overpressure valves have a layer of emulsion bonding on their underside. To prevent individual layers of the roll from sticking together, the overpressure valves have an adhesive-repelling layer on their top side. The overpressure valves are connected to one another in one piece and in a row, and are separated consecutively in a packaging machine.Type: GrantFiled: October 1, 1993Date of Patent: June 27, 1995Assignee: Robert Bosch GmbHInventors: Norbert Buchner, Klaus Domke, Manfred Reichert, Herbert Stotkiewitz, Bernd Wilke, Sabine Zimmermann, Kuno Lemke, Guenther Voegele
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Patent number: 5424105Abstract: A apparatus and method for effecting repair to damaged, nonstressed aircraft structure is described. A sheet of material comprised of woven glass cloth impregnated with a resin cured under temperature and pressure forms the basic patch. One side of the patch has a Tedlar.RTM. overlay attached to the sheet face in the preferred embodiment. This patch material meets the Federal Aviation Regulations (FAR 25.855) which is required to provide for fire resistant material on transport aircraft. A pressure sensitive film is bonded to the side opposite the Tedlar.RTM. overlay. This combination of glass sheet and pressure sensitive film is pressure bonded to the damaged structure and further held in place by mechanical fasteners which can withstand a temperature of at least 1,700 degrees Fahrenheit.One of the primary applications of this invention is in the cargo liner repair of transport aircraft.Type: GrantFiled: May 19, 1993Date of Patent: June 13, 1995Inventor: Michael D. Stewart
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Patent number: 5401548Abstract: A ceremonial roll of material that can be easily unrolled and used is described. The roll contains a small layer or strip of releasable adhesive located on the floor surface of the roll at the starting end thereof. The adhesive is applied to the roll under pressure and at elevated temperatures. This adhesive is then pressed onto the floor itself before the roll is rolled down the aisle or walkway to be used. The adhesive will hold to the floor during the unrolling but can easily be removed by pulling up at an angle of greater than 30.degree. from the floor. The adhesive will resist from 10 to 300 pounds of pull at angles less than this 30.degree.. The ceremonial roll may be made from a host of materials but a non-woven material made from long, natural and synthetic fibers is preferred.Type: GrantFiled: November 1, 1993Date of Patent: March 28, 1995Assignee: Hampshire Paper Corp.Inventor: Michael J. Stepanek
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Patent number: 5347927Abstract: An exemplary anisotropic printing element comprises an outer printing surface layer and, located radially beneath the outer layer, a spirally-integrated reinforced compressible tubular structure comprising a reinforcing sheet having synthetic fibers, the sheet being spirally wrapped at least two complete turns circumferentially around the longitudinal axis of the tubular structure, thereby defining an inner tubular surface on a radially inward wrapped sheet portion and an outer tubular surface on a radially outward wrapped sheet portion, the tubular structure further comprising an elastomer having voids, the elastomer being disposed between the inner and outer tubular surfaces defined by the wrapped sheet portions, the void-containing elastomer thereby providing radial compressibility to and being spirally-integrated within the tubular structure. Examplary methods for fabricating the printing elements of the invention are also disclosed.Type: GrantFiled: May 4, 1993Date of Patent: September 20, 1994Assignee: W. R. Grace & Co.-Conn.Inventors: Claude Berna, Dennis O'Rell, Herve Praet, Gerard Rich, Richard Rodgers, Jean P. Stutz
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Patent number: 5342665Abstract: A bulletin board is disclosed which employs adhesive strip elements on the front side to provide a simplified and convenient means for repeatedly attaching and removing items such as notes, schedules, coupons, pens or pencils, keys, and the like, without damaging these items and without requiring pins or tacks. Each strip element includes a tacky, adhesive portion which is coated with a non tacky tear strip that protects the adhesive portion prior to use; when the tear strip is removed, the adhesive strip becomes exposed for use. Non tacky indentations are defined between each strip element and facilitate the removal of items from the strips. The rear surface of the bulletin board may be provided with a plurality of sponge adhesives and rubberized magnets which enable the bulletin board to be attached to, easily removed from, and reattached to, various support surfaces for the bulletin board.Type: GrantFiled: September 7, 1993Date of Patent: August 30, 1994Inventor: Daniel S. Krawitz
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Patent number: 5332607Abstract: A water-soluble double-faced adhesive tape is provided which needs no release paper, permits web splicing without an increase in thickness at the spliced part, and permits spliced webs to run smoothly in a papermaking process, eliminating the possibility of web breaking. The tape includes a water-disintegratable substrate, a first water-soluble adhesive layer formed on one side of the substrate from one edge of the substrate, and a second water-soluble adhesive layer formed on the other side of the substrate from the other edge of the substrate, the two adhesive layers being positioned a distance apart greater than the web thickness plus twice the tape thickness plus an allowance such that they do not overlap in the width direction, with release layers preventing the adhesive layer from sticking to the substrate when the tape is wound up into a roll.Type: GrantFiled: February 10, 1993Date of Patent: July 26, 1994Assignee: Nitto Denko CorporationInventors: Koichi Nakamura, Hiroshi Wada, Naoki Matsuoka
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Patent number: 5326606Abstract: A bullet-proof panel comprising an outer panel of polycarbonate resin, a middle panel of ceramic tile and a second sheet of polycarbonate resin attached thereto, all of said layers being bonded together by a polyurethane adhesive. In the second embodiment of the present invention useful for preventing the penetration of high-velocity bullets, a third layer of polycarbonate resin is attached to the second layer of polycarbonate resin.Type: GrantFiled: August 12, 1992Date of Patent: July 5, 1994Assignee: Armorvision Plastics & GlassInventor: Joseph Labock
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Patent number: 5322722Abstract: A system for adhesively fastening water deflector type panel liners upon supporting panel surfaces of automotive vehicle doors and the like substrates, includes forming shallow, narrow channels in the liners and positioning thick strips of pressure sensitive adhesive within the channels. The liners are applied upon the panel surfaces and pressure is applied against the channels towards the panel surfaces to partially collapse the channels and flow the adhesive into contact with the panel surfaces. The adhesive flows into, and smooths any irregularities on the panel surfaces while adhering the liners thereto. The exposed faces of the adhesive strips may be covered with a wide mesh fabric to normally prevent the adhesive on one strip from sticking to adjacent surfaces of other similar liners in a stack or a roll of liners. When pressure is applied to the channels, the adhesive flows through the mesh into contact with the supporting panels.Type: GrantFiled: September 4, 1992Date of Patent: June 21, 1994Assignee: Foamade Industries, Inc.Inventor: Yakov Rozenberg
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Patent number: 5301610Abstract: A printing sleeve for a flexographic printing process is prepared by spirally winding successive adhesive coated tapes onto a forming mandrel such that the outer tape covers the seam in the previous layer, providing heat to the thermoplastic adhesive layers at the initial contact point between two tapes, providing sufficient tension to ensure consolidation, and advancing the resultant printing sleeve off the mandrel by means of a drive belt.Type: GrantFiled: April 30, 1993Date of Patent: April 12, 1994Assignee: E. I. Du Pont de Nemours and CompanyInventor: Ronald F. McConnell
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Patent number: 5288546Abstract: A distinctive article has first and second waistband sections, and an intermediate section which interconnects the waistband sections. The article comprises a backsheet layer, a liquid permeable topsheet layer superposed in facing relation with the backsheet layer, and an absorbent body interposed between the backsheet and topsheet layers. At least one adhesive tape member connects to the first waistband section. The tape member has a factory-bond section for connecting the tape member to the first waistband section, and a user-bond section for securing the article on a wearer. The user-bond section connects to a finger tab which includes a non-securing grasping section thereof. In particular embodiments, the grasping section can comprise a layer of absorbent material.Type: GrantFiled: July 31, 1992Date of Patent: February 22, 1994Assignee: Kimberly-Clark CorporationInventors: Thomas H. Roessler, Mary P. Jordan, Carmen C. Donovan
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Patent number: 5284689Abstract: A printable product label assembly having a selectably adhesive portion is provided. The label assembly includes a printable face sheet overlying a liner sheet, a releasable adhesive securing a first portion of the face sheet to a first portion of the liner sheet such that the face sheet and liner sheet are readily separable upon the application of a sufficient delaminating force. A pressure sensitive adhesive secures a second portion of the face sheet to a second portion of the liner sheet such that when the label is removed from the liner sheet, only a selected area of the label includes the pressure sensitive adhesive, while the remainder of the label is nontacky to the touch.Type: GrantFiled: September 14, 1992Date of Patent: February 8, 1994Assignee: The Standard Register CompanyInventors: David F. Laurash, Rajendra Mehta, Gary W. Doll
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Patent number: 5273805Abstract: A flexible carrier web has a planar surface bearing thereon a predetermined pattern consisting of at least one flat land area and at least one recess having a base and walls, and a layer of silicone on the land and/or the base of the recess while the walls of the recess are substantially free from the silicone. When that flexible carrier web is used as the backing of a pressure-sensitive adhesive layer, release values can be controlled simply by selecting the size and/or number of recesses.Type: GrantFiled: August 5, 1991Date of Patent: December 28, 1993Assignee: Minnesota Mining and Manufacturing CompanyInventors: Clyde D. Calhoun, Carl R. Kessel
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Patent number: 5244709Abstract: A light-transmitting fire resistant glazing panel includes at least two vitreous sheets between which is sandwiched at least one intervening layer of intumescent material, for example, of hydrated sodium silicate. Two of the vitreous sheets are of different thicknesses and they are bonded together via the sandwiched intumescent material. The thinner of the two vitreous sheets is of conforming size to the thicker sheet and the thinner sheet and intumescent layer are shaped to leave the main face of the thicker sheet to which they are bonded exposed at a plurality of local marginal areas. This allows a hinge bracket 11 to be attached to the thicker sheet 1 at the exposed area 5 by a plurality of bolts leading through holes in the thicker sheet. The bolts may comprise sheathes, e.g. of nylon, or they may lead through bushes, e.g. of nylon, to avoid direct contact between the metal of the bolts and the glass if this is desired.Type: GrantFiled: December 13, 1990Date of Patent: September 14, 1993Assignee: GlaverbelInventor: Robert Vanderstukken
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Patent number: 5242725Abstract: A multilayer flexible marking tape for use in highlighting text or applying colored markings to a paper substrate in which a relatively thin cover layer is applied to a carrier which can be stripped from the cover layer and a relatively thick pressure contact adhesive is applied to the cover layer to adhere to the substrate. The adhesive layer contains a coloring agent, preferably a fluorescent pigment.Type: GrantFiled: July 23, 1990Date of Patent: September 7, 1993Assignee: Pelikan AGInventors: Karl-Heinz Weissmann, Lothar Titze
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Patent number: 5238718Abstract: A multi-layered blow-molded bottle comprising at least two layers of a polyolefin resin (A), at least two layers of an adhesive resin (B) prepared by melt-reacting an olefin polymer (b.sub.1) with a rubber (b.sub.2) and an unsaturated carboxylic acid or a derivative thereof (b.sub.3) in the presence of an organic peroxide to obtain a product and adding a rubber (b.sub.4) to the product to melt-mix them with each other, and at least one layer of a barrier resin (C) selected from among polyamide, polycarbonate, polyester, polyvinylidene chloride and saponified ethylene-vinyl acetate polymer resins, which are laminated in the order of A/B/C/B/A.Type: GrantFiled: May 29, 1991Date of Patent: August 24, 1993Assignee: Nippon Petrochemicals Company, LimitedInventors: Katsumi Yano, Shigemitsu Kambe
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Patent number: 5227225Abstract: Novel methods for preparing masking tapes by coating a thin layer of a polyolefinic material onto a lightweight nonwoven cloth and then applying a layer of adhesive, preferably a hot melt adhesive onto the opposed surface of the nonwoven cloth; and novel masking tapes prepared thereby.In the preferred embodiments, the polyolefinic layer consists essentially of a thin stratum of a high density polyethylene and a thin layer of low density polyethylene.Type: GrantFiled: September 6, 1991Date of Patent: July 13, 1993Assignee: The Kendall CompanyInventor: Abboud L. Mamish
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Patent number: 5225267Abstract: A laminated resin film having a metallic appearance comprises:(a) a polyvinyl chloride type resin film having a total light transmission of at least 30% and a tensile strength at 5% elongation of not higher than 2 kg/cm;(b) a thin polyurethane type resin layer laminated on one surface of the resin film and having a total light transmission of at least 30% and a tensile strength at 100% elongation within the range of 50 to 550 kg/cm; and(c) a metal layer having a thickness of 50 to 2,000 .ANG. formed and adhering onto the polyurethane type resin layer. The film is useful particularly as a marking film.Type: GrantFiled: September 5, 1991Date of Patent: July 6, 1993Assignee: Nippon Carbide Kogyo Kabushiki KaishaInventors: Katsura Ochi, Yasuaki Oonishi, Kazuhisa Kinsen
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Patent number: 5219630Abstract: A fire-resistant safety glazing product comprises at least two sheets of glazing material, e.g. glass, bonded together with an interlayer of adhesive binder material and metallic wire mesh of the type used in "wired glass" embedded in the interlayer.Methods of manufacturing fire-resistant safety glazing products are disclosed.Type: GrantFiled: April 28, 1992Date of Patent: June 15, 1993Assignee: Miller Construction LimitedInventor: James A. Hickman
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Patent number: 5219629Abstract: Sandwich panels and methods of making them, i.e., laminates which comprise two metal sheets with a filled resin core between a bonded metal sheets, which are useful for structural and other uses wherein the laminates utilize combinations of metal skins, metal surface preparation, resins, fillers, and reinforcement bonded together in the sandwich structure to provide a laminate having a flexural modulus of at least 1.7 million psi, a rigidity index of at least about 2,000 and other unique properties which enable the laminates to be particularly useful for thin wall trailer body construction, as well as other structural and non-structural uses. A rigidity index property for sandwich structures and panels and a falling ball impact test are disclosed and used to characterize the properties of sandwich laminates.Type: GrantFiled: July 3, 1991Date of Patent: June 15, 1993Assignee: Chemical & Polymer Technology, Inc.Inventor: Igor Sobolev
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Patent number: 5183699Abstract: The present invention relates to a wafer processing film used for the prevention of breakage upon grinding a semiconductor wafer. The wafer processing film has a base film an adhesive layer provided on one surface of the base film and a synthetic resin film arranged on the adhesive layer. The surface roughness of the surface of the synthetic resin film in contact with the adhesive layer is not greater than 2 .mu.m.The present invention provides a wafer processing film which can protect the surface of a wafer from contamination and corrosion after grinding the wafer.Type: GrantFiled: April 1, 1991Date of Patent: February 2, 1993Assignee: Mitsui Toatsu Chemicals, Inc.Inventors: Yasuo Takemura, Osamu Narimatsu, Kazuyoshi Komatsu
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Patent number: 5180627Abstract: The disclosed heat resistant adhesive composition comprises a polyimidesiloxane obtained from a biphenyltetracarboxylic acid or its derivative and a diamine composition comprising a diaminopolysiloxane and an aromatic diamine, an epoxy compound having an epoxy group, and an epoxy compound-hardening agent. An adhesive film and a composite sheet utilizing the heat resistant resinous composition are also disclosed.Type: GrantFiled: December 2, 1991Date of Patent: January 19, 1993Assignee: Ube Industries, Ltd.Inventors: Hiroshi Inoue, Seiichirou Takabayashi, Tadao Muramatsu, Tsutomu Funagoshi, Tetsuji Hirano
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Patent number: 5134019Abstract: A thermal image transfer recording medium comprising a support, and an ink layer formed thereon, consisting essentially of (i) a lower non-porous layer portion located in the vicinity of the support, comprising a first thermofusible ink and a first resin, and (ii) an upper porous layer portion located on top of the lower layer portion, comprising a second thermofusible ink and a second resin having a minute porous structure in which the second thermofusible ink is supported. In this recording medium, the occupation ratio of the second resin in the upper porous layer portion is higher than that of the first resin in the lower layer portion, and the second resin and the support is connected with each other by the first resin.Type: GrantFiled: April 18, 1990Date of Patent: July 28, 1992Assignee: Ricoh Company, Ltd.Inventors: Keiichi Shiokawa, Youji Ide
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Patent number: 5108815Abstract: Novel duct tapes comprising a water-impermeable sheet backing carrying, in order, a cloth material and an adhesive layer, wherein the backing is embossed in order to lower the density and thereby render a duct tape of a given thickness more cost-effective.Type: GrantFiled: September 5, 1990Date of Patent: April 28, 1992Assignee: The Kendall CompanyInventors: Charles L. Adams, Kenneth D. Herndon, David R. Witty, Rajiv Anand
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Patent number: 5080961Abstract: The present invention is directed to a multilayered coextruded thermoplastic structure useful as a packaging material having a barrier layer of polyvinylidene chloride, a polycarbonate layer and an adhesive layer interposed therebetween. The polycarbonate resin of the invention is characterized by its low molecular weight. In a preferred embodiment the polycarbonate is further characterized by its special chain terminating agent.Type: GrantFiled: August 15, 1990Date of Patent: January 14, 1992Inventors: Richard J. Macy, Larry D. Sarver
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Patent number: 5073420Abstract: A multi-layered blow-molded bottle comprising at least two layers of a polyolefin resin (A), at least two layers of an adhesive resin (B) prepared by melt-reacting an olefin polymer (b.sub.1) with a rubber (b.sub.2) and an unsaturated carboxylic acid or a derivative thereof (b.sub.3) in the presence of an organic peroxide to obtain a product and adding a rubber (b.sub.4) to the product to melt-mix them with each other, and at least one layer of a barrier resin (C) selected from among polyamide, polycarbonate, polyester, polyvinylidene chloride and saponified ethylene-vinyl acetate polymer resins, which are laminated in the order of A/B/C/B/A.Type: GrantFiled: October 12, 1989Date of Patent: December 17, 1991Assignee: Nippon Petrochemicals Company, LimitedInventors: Katsumi Yano, Shigemitsu Kambe
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Patent number: 5064713Abstract: An elastomeric adhesive composition useful in resurfacing applications is provided. The composition includes a liquid dispersion of a polar latex resin binder, a chemical plasticizer, a volatile glycol ether solvent and a thickening agent. The binder is an emulsion of water and a polyvinyl acetate homopolymer with a polyvinyl alcohol protective colloid and is present in a concentration effective in adhering a resurfacing fabric to a surface wetted with the composition. The chemical plasticizer acts to plasticize and tackify the latex resin binder. The thickening agent is present in an amount effective to modify the viscosity of the composition so that it will not flow once applied to a surface. In addition, the invention comprehends a resurfacing composition and a method of resurfacing.Type: GrantFiled: January 14, 1991Date of Patent: November 12, 1991Assignee: Lindsay Finishes, Inc.Inventors: Donald C. DuLaney, Robert H. Lindsay
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Patent number: 5045382Abstract: A thermal ink-transfer recording medium of the present invention comprises: an anisotropically electroconductive layer formed by dispersing an electroconductive powder with an average particle size of 10 .mu.m to 2 mm in a thermosetting resin, shaping the blend into sheet form, and heat-curing the sheet while being compressed in the direction of its thickness; a heat-generating resistive layer; a pickup electrode layer; an ink release layer; and a heat-fusible ink layer that is capable of being fused by the heat generated from said heat-generating resistive layer.Type: GrantFiled: March 8, 1990Date of Patent: September 3, 1991Assignee: Fuji Xerox Co., Ltd.Inventors: Eiichi Akutsu, Hiroo Soga, Koichi Saito, Kiyoshi Horie
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Patent number: 5026586Abstract: The shell, which is size and contoured to fit the underside of the roof of the vehicle, is composed of a core of relatively rigid wire mesh embedded in and tightly bonded to a void-free unitary layer of a relatively rigid plastic material enveloping the wire mesh. One type of vehicle headliners have a foam backed cloth or a foam backed plastic film bonded to the side of the shell which will face toward the interior of the vehicle. In a preferred type of vehicle headliners a velour-like coating of short fibers (most preferably nylon fibers) is affixed to and projects from the vehicular interior side of the shell.Type: GrantFiled: April 7, 1989Date of Patent: June 25, 1991Inventor: Thomas E. Tabor
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Patent number: 4980223Abstract: A forming sheet for forming an article such as a housing for an electronic device having a shieldability against electromagnetic interference. It is made by laminating a conductive laminated sheet to a thermoplastic synthetic resin sheet through a hot melt adhesive layer. The conductive laminated sheet is formed by subjecting to heat shrinkage a substrate comprising a metallic film and a heat-shrinkable synthetic resin film laminated together through a discontinuous bonding layer. The conductive layer is less liable to crack due to stress applied during forming.Type: GrantFiled: July 25, 1989Date of Patent: December 25, 1990Assignees: Toyo Aluminium Kabushiki Kaisha, Tsutsunaka Plastic Industry Co. Ltd.Inventors: Toshihiko Nakano, Shoichi Makimoto, Hiroyoshi Nanri, Kazuhiro Ogawa, Haruhiro Fukuda
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Patent number: 4965117Abstract: Command-cure compositions especially for use in insulated window assemblies permit the composition to be rendered adhesively bonding at a selected time interval after formation of the assembly to firmly bond opposed surfaces of the assembly; a particular adhesive in strip or tape form comprises an adhesive polymer composition which is transparent to curing radiation especially UV, and curable in the presence of the radiation; the curing is inhibited by oxygen; the composition is solvent free and cures to a mass resistant to water; surfaces of the adhesive exposed to oxygen remain tacky and uncured; the adhesive is especially useful in window structures in which adhesion of the tacky surface excludes the cure-inhibiting oxygen and the tacky surface can be cured by UV radiation passing through the window glass.Type: GrantFiled: February 23, 1989Date of Patent: October 23, 1990Assignee: The B. F. Goodrich CompanyInventors: Friedrich K. W. Lautenschlaeger, Reynaldo G. Bumanlag, James A. Box
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Patent number: 4956224Abstract: Article produced from a laminate comprising at least one thermoplastic resin layer (A), at least one fibre-reinforced heat-cured resin layer (B) and at least one adhesive layer (C) intermediate between layers (A) and (B).It is of complex shape and the ratio of the thickness of layer (B) to the thickness of layer (A) in the said article is at least equal to 1.5.The process of manufacture consists in that, in a first step, a thermoplastic resin layer (A) is coated hot with at least one adhesive layer (C) and then, in a second step, the said adhesive-coated layer (A) is subjected to a skeleton forming operation using a complex-shaped layer (B) of fibre-reinforced heat-cured resin as a forming mould, the skeleton forming conditions being such that the ratio of the thickness of layer (B) to the thickness of layer (A) in the complex-shaped article produced is at least equal to 1.5.Type: GrantFiled: June 25, 1987Date of Patent: September 11, 1990Assignee: Societe Chimique des Charbonnages S.A.Inventor: Jean-Paul Leca
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Patent number: 4952459Abstract: A visual quality, laminated glass structure is produced by an in-line lamination procedure. The laminated construction is achieved through the application of an optical grade double faced adhesive coated film to the monolithic glass sheet and the subsequent lamination of a flexible web film to the adhesive coated monolithic glass. The resultant construction is a monolithic product consisting of a sheet glass, a primary acrylic bonding agent, a clear polyester carrier, a secondary acrylic bonding adhesive and outer layer of polyester film. The laminated glass structure has enhanced structural qualitites and performance characteristics.Type: GrantFiled: September 19, 1988Date of Patent: August 28, 1990Inventor: Jesse D. Thatcher
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Patent number: 4933225Abstract: A pressed ceiling for use in vehicles comprising a base material of corrugated cardboard heat-press formed to a predetermined form, a surface skin material heat-pressed to the inner face of the corrugated cardboard base material thus-formed and a layer of heat melting adhesive interposed between the corrugated cardboard base material and the surface skin material, wherein the heat melting adhesive layer is made thicker at the peripheral portions of the press formed corrugated cardboard base material to restrain or prevent the spring-back of the press formed corrugated cardboard base material at its peripheral portions when it has moisture again.Type: GrantFiled: August 23, 1988Date of Patent: June 12, 1990Assignee: Ikeda Bussan Co., Ltd.Inventor: Nobuo Abe
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Patent number: 4931347Abstract: An adhesive system having a pressure-sensitive adhesive matrix and dispersed therein particulate solids wherein the adhesive system has a light transmission within the range of 15 to 80 percent transmission, and preferably 25 to 75 percent transmission. The adhesive system may include a coating of untilled pressure sensitive material. The particulate solids preferably have a particle size no greater than 300 microns, and may be organic particulate solids, preferably certain polymeric compositions.Type: GrantFiled: September 19, 1988Date of Patent: June 5, 1990Assignee: Nalco Chemical CompanyInventors: Manuel Slovinsky, Jeffrey R. Tarizzo
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Patent number: 4911964Abstract: A stretchable thin plastic film and a double faces adhesive tape are mountable on exterior surfaces surrounding a building window or door to provide an external weather barrier. One side of the adhesive tape is adapted for mounting on a wide variety of external mounting surfaces at temperatures as low as 40.degree. F., and the plastic film is mountable on the adhesive on the other side of the tape at the same low temperature. The two adhesives have different adhesion strengths which enable the adhesive tape to be adhered to the mounting surface without separation therefrom during the stretching and adhering of the plastic film to the opposite side thereof and which adhesion strengths, with the film so stretched and adhered, provide for the film to be maintained against separation from the adhesive tape and the adhesive tape maintained against separation from the mounting surfaces under adverse weather conditions including gusting winds, rain and temperatures at least as low as 0.degree. F.Type: GrantFiled: June 19, 1987Date of Patent: March 27, 1990Assignee: Manco, Inc.Inventors: Thomas A. Corbo, S. Thomas Carrozza
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Patent number: 4892765Abstract: The present invention discloses a heat-shrinkable laminate film which comprises a core layer of a copolymer of vinylidene chloride, two surface layers of a polyamide and an adhesive layer between core and surface layers and is excellent in a barrier property to gaseous oxygen, a barrier property of water vapor, an anti-creep property at a high temperature, an anti-pinhole property, a closely adhering property to meat, safety, an anti-curl property, an anti-creep property in warm water, an anti-delayed recovery property and an anti-peeling off property.Type: GrantFiled: May 22, 1987Date of Patent: January 9, 1990Assignee: Kureha Kagaku Kogyo Kabushiki KaishaInventors: Nobuyuki Hisazumi, Keisuke Kahara, Yoshihiro Matsukura
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Patent number: H1274Abstract: A packaging film comprising a core layer of polypropylene and a surface layer comprising a propylene ethylene random copolymer wherein at least one of said core or said surface layers contains a minor amount of a high melt index butylene homopolymer.Type: GrantFiled: March 29, 1991Date of Patent: January 4, 1994Assignee: Shell Oil CompanyInventor: Charles C. Hwo