Of Laminae Having A Different Coating On At Least Two Mating Surfaces Patents (Class 156/310)
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Patent number: 4581427Abstract: An adhesive composition which exhibits fast curing through large gaps is disclosed. The composition comprises (A) at least one addition polymerizable vinyl-type monomer; (B) at least one free radical stabilizer; and (C) a free radical cure system. The free radical cure system comprises (i) at least one free radical initiator, and (ii) at least one ferrocene type compound.Type: GrantFiled: April 4, 1985Date of Patent: April 8, 1986Assignee: Loctite CorporationInventors: David J. Dunn, Kieran F. Drain
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Patent number: 4578135Abstract: A method for manufacturing a fuel cell electrolyte matrix comprises the steps of providing a fuel electrode and oxidizing electrode respectively coated with a catalyst layer on one side, forming a layer of powdery electrolyte-resistive material on the surface of at least one of the catalyst layers, coating a paste layer prepared from acid electrolyte and powdery electrolyte-resistive material on the powder layer or catalyst layer of the fuel electrode and/or the powder layer or catalyst layer of the oxidizing electrode, tightly superposing the fuel electrode and oxidizing electrode on each other with the paste layer and powder layer interposed therebetween, thereby forming an electrolyte matrix between both electrodes.Type: GrantFiled: February 1, 1984Date of Patent: March 25, 1986Assignee: Tokyo Shibaura Denki Kabushiki KaishaInventors: Mitsushi Ueno, Tamotsu Shirogami, Noboru Segawa
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Patent number: 4571278Abstract: A process for mounting a piece of glass in a bay, particularly the windshield of a motor vehicle, is disclosed which comprises forming a first bead of hardenable adhesive material on the edge of the glass to be inserted in the bay, and thereafter superpositioning said bead on a second bead of adhesive material compatible with said first bead and pressing the glass piece into the bay, while the second bead hardens. The second bead may be formed either on the first bead of adhesive material, or in the bay itself, immediately prior to insertion of the glass piece.Preferrably, the first formed bead has a section exhibiting a tongue or protrusion extending away from the periphery of the glass towards the bay, which serves to contain the lateral expansion of the second bead of adhesive material upon pressing, and hides the second bead of material from view upon insertion.Type: GrantFiled: March 23, 1984Date of Patent: February 18, 1986Assignee: Saint-Gobain VitrageInventor: Heinz Kunert
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Patent number: 4557784Abstract: A metal clad laminate is produced in continuous manner by impregnating a plurality of fibrous substrate with a curable liquid resin, combining said plurality of substrates together and simultaneously laminating a metal foil onto at least one side of said substrates, and curing the laminate. The improvement comprises the steps of applying an adhesive onto said metal foil to form a film and heating said film in situ continuously prior to step of laminating step of said metal foil.Type: GrantFiled: June 27, 1980Date of Patent: December 10, 1985Assignee: Kanegafuchi Kagaku Kogyo Kabushiki KaishaInventors: Masakazu Uekita, Yasuo Fushiki, Masayuki Ooizumi
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Patent number: 4557773Abstract: The invention comprises a method and various apparatus related to fabricating solid particulate filter bodies and other honeycomb structures the cells of which are selectively charged with a plugging or other flowable material. Solid coverings are applied over the end faces of a honeycomb structure, preferably an adhesive backed transparent thermoplastic film such as polyester, openings are created through the covering, preferably by melting the thermoplastic film, and the sealing or other flowable material is charged through the openings formed in the covering into the underlying cells.A porous walled honeycomb structure having coverings adhered to its end faces with selective openings therethrough is itself a solid particulate filter of some usage. A more substantial solid particulate filter body may be formed by charging a more durable sealant through the openings to form plugs and removing the coverings.Type: GrantFiled: July 15, 1981Date of Patent: December 10, 1985Assignee: Corning Glass WorksInventor: Roy T. Bonzo
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Patent number: 4545842Abstract: A method is disclosed for laminating plastics resin films to aluminum. The aluminum surface to be bonded is treated with a coating composition consisting essentially of an aqueous solution of polyacrylic acid or esters thereof and at least one acid selected from the group consisting of H.sub.2 ZrF.sub.6, H.sub.2 TiF.sub.6 and H.sub.2 SiF.sub.6. After this coating has dried, the plastics resin film is bonded to the aluminum, using dry laminating adhesives.Type: GrantFiled: July 27, 1984Date of Patent: October 8, 1985Assignee: Reynolds Metals CompanyInventor: Robert C. Parsons
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Patent number: 4529466Abstract: In order to prevent uncontrolled running, spreading and splattering by the adhesive contained in a surface-fastened frangible adhesive capsule as the capsule is smashed when two objects are brought together in a face-to-face manner while the capsule is disposed between them and has been preliminarily fastened on an interfacial surface of one of them, the capsule is ringed by a flacid plume of barrier material such as crepe paper, having a substantial thickness when unconfined, but which is subject to being compressed to insubstantial thickness. The barrier ring may be surface fastened to either of the interfacial surfaces and may be separate from or unitary with the capsule hanger.Type: GrantFiled: March 22, 1984Date of Patent: July 16, 1985Inventor: Israel Stol
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Patent number: 4515649Abstract: Disclosed is a lightweight laminate and a method for making the laminate. Protective and decorative molding and trim strips for automotive vehicles and the like can be made from the laminate which has a body comprising an extruded thermoplastic elastomer material and an extruded outer layer with a tie sheet sandwiched therebetween. The tie sheet is made with sheet lamination technique and is a laminate of a layer compatible with thermoplastic elastomer material and a layer compatible with the outer layer. Optionally, the outer layer can be transparent and a decorative layer of metallized polyester and/or other material can be encapsulated between the outer layer and the tie sheet.Type: GrantFiled: August 24, 1983Date of Patent: May 7, 1985Assignee: The Standard Products CompanyInventor: Joel H. Nussbaum
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Patent number: 4504345Abstract: A tennis-ball is made by covering a spherical core with twelve substantially identical pentagonally-shaped pieces of a cover material. Before the pentagonally-shaped pieces are attached to the core, they are covered on their outermost surface by a removable layer of adhesive-impermeable barrier material (e.g. tissue paper). The barrier material restrains the movement of the pentagonally-shaped pieces when applied to the spherical core, so that a narrow uniform seam is obtained. When all twelve cover pieces are correctly positioned on the core, the barrier material is removed and the assembly subjected to a random rolling action to "finish" the ball.Type: GrantFiled: June 29, 1983Date of Patent: March 12, 1985Assignee: Dunlop LimitedInventors: Robert C. Haines, Royce Pridgeon
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Patent number: 4497678Abstract: Disclosed is an extruded laminate and a method for making the laminate. Protective and decorative molding and trim strips for automotive vehicles and the like can be made from the laminate which comprises a body of an extruded thermoplastic material such as extruded polyvinylchloride and an extruded outer layer of a different and incompatible material with a tie sheet sandwiched therebetween. The tie sheet is a thin laminate of a layer compatible with the thermoplastic material of the body and a layer compatible with the material of the outer layer. Optionally, a decorative layer of metallized polyester and/or other material can be encapsulated between the tie sheet and the body or outer layer.Type: GrantFiled: November 28, 1983Date of Patent: February 5, 1985Assignee: The Standard Products CompanyInventor: Joel H. Nussbaum
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Patent number: 4497916Abstract: An improved sealing or adhesive composition comprising a stable slurry of solid meltable wax-like particles dispersed in a liquid adhesive or sealant composition, such as an anaerobic adhesive of sealant, which may be caused to cure at a time later than the time of application. The composition may be applied to threaded bolts or other articles by pumping the slurry through a heated applicator head to dispense homogeneous liquid on the article which hardens on cooling to a non-mobile setable coating.Type: GrantFiled: August 22, 1983Date of Patent: February 5, 1985Assignee: Loctite (Ireland) LimitedInventors: Bernard Cooke, Peter Wrobel
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Patent number: 4484967Abstract: In the case where two kinds of metals are to be bonded while maintaining an electrically insulated condition therebetween, one of the metals to be bonded is applied with a paint containing glass flakes which serves as an insulating material and then the painted surface of the one metal is bonded to the other metal with a binder.Type: GrantFiled: April 26, 1983Date of Patent: November 27, 1984Assignee: Mitsubishi Jukogyo Kabushiki KaishaInventors: Yoshikazu Watanabe, Toshihide Tsukahara, Shozo Ota
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Patent number: 4482418Abstract: A bonding method which uses two solutions, one being anionic and the other being cationic, to lay down alternating layers of particles of accurate dimension onto members which are to be bonded. Thereafter, the layers are placed in contact, and the members are bonded together by diffusion bonding techniques.Type: GrantFiled: August 17, 1983Date of Patent: November 13, 1984Assignee: International Business Machines CorporationInventor: Eugene B. Rigby
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Patent number: 4482414Abstract: An enclosure for having foam generated and contained therein is defined between two layers of flexible thermoplastic material, which are edge sealed to define an enclosed unit. One inwardly facing surface of one layer is coated with a first foam generating agent, such as crystals, and the opposite, inwardly facing surface of the other layer is coated with capsules of another foam forming agent, wherein the capsules prevent mixing of the two agents for generating foam. Upon subsequent rupture of the capsules, the foam generating agents mix, react and generate foam in the enclosure. An additional layer may be disposed between the two exterior layers. Both surfaces of the additional layer also carry one of the foam forming agents, whereby two enclosures are defined, one over the other, each for generating and containing foam. In forming the enclosed unit, each layer is separately coated with its respective foam forming agent and thereafter the layers are secured together to define the enclosure.Type: GrantFiled: October 31, 1983Date of Patent: November 13, 1984Inventor: Milton Schonberger
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Patent number: 4477303Abstract: An improved process for preparing a laminate polymer article having an alkyl methacrylate polymer film uniformly laminated on at least one surface of the body of a polymer article formed from a prepolymer composition containing a polymerizable monomer, a solvent or a mixture thereof is disclosed.Type: GrantFiled: February 3, 1982Date of Patent: October 16, 1984Assignee: Mitsubishi Rayon Co., Ltd.Inventors: Makoto Ohe, Koichiro Sugi
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Patent number: 4472231Abstract: An anticorrosion and high shear resistant pipewrap system is described wherein a pipe surface is first coated with a primer comprised of natural rubber, resins, and a metal oxide activator dispersed in an organic solvent. The primer-coated pipe is then overlaid with an adhesive-coated polyolefin tape, the adhesive comprising a butyl-based rubber, tackifying agent and a cross-linking agent, p-quinone dioxime. The cross linking agent functions in the presence of an organo-titanate-treated metal oxide, being a catalyst such as lead dioxide, or the like, that results in high rates of cross linking in both the primer coating, the adhesive coating and the primer/adhesive interface zone. Minimal creep of the described anti-corrosion protective coating is noted in high shear stress environments.Type: GrantFiled: July 19, 1982Date of Patent: September 18, 1984Assignee: The Kendall CompanyInventor: Robert F. Jenkins
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Patent number: 4452837Abstract: A process of reinforcing a sheetlike substrate by applying a plurality of linear reinforcements comprising a filamentary core having a pre-coating of "hot melt" adhesive to the substrate with at least one of the linear reinforcements applied in a generally serpentine or waveform pattern to provide both in-machine and cross-machine tensile strength and tear resistance. The present invention is also an improved reinforced sheetlike substrate having the linear reinforcements applied thereon in accordance with the process. In one embodiment, adjacent linear reinforcements are applied in an overlapping or interlocking serpentine configuration onto the substrate. In one embodiment of the process, the sheetlike substrate is conducted along a path defined as the in-machine direction while the plurality of linear reinforcing members are fed through a guide member that is reciprocating transversely with respect to the in-machine direction.Type: GrantFiled: May 4, 1981Date of Patent: June 5, 1984Assignee: H. B. Fuller CompanyInventors: Victor H. Clausen, Paul Kaplan
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Patent number: 4450030Abstract: An improved two-part adhesive composition comprising as a first part monomer-in-polymer polymerizable solution and a second part, an activator enriched in its N-phenyl-3,5-diethyl-2-propyl-1,2-dihydropyridine content. The content is enriched to a concentration of at least about 70% of the second part.Type: GrantFiled: November 21, 1983Date of Patent: May 22, 1984Assignee: Loctite CorporationInventors: David P. Melody, Seamus M. Grant, Francis R. Martin
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Patent number: 4432829Abstract: An adhesive composition, capable of functioning either aerobically or anaerobically, includes an acrylate monomer and a suitable elastomeric filler, together with an aromatic perester catalyst and a dibasic acid capable of cyclic tautomerism.Type: GrantFiled: March 8, 1982Date of Patent: February 21, 1984Assignee: American Chemical & Engineering Co.Inventor: Andrew G. Bachmann
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Patent number: 4426243Abstract: A polymerizable mixture for adhesive bonding is disclosed. The polymerizable mixture comprises a polymerizable acrylic-based material, a polymerizable epoxide-based material and a bifunctional molecular material reactable with said acrylic-based material and said epoxide-based material.Type: GrantFiled: December 1, 1981Date of Patent: January 17, 1984Assignee: Illinois Tool Works Inc.Inventor: Paul C. Briggs
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Patent number: 4425179Abstract: Novel, improved adhesive compositions which are curable at ambient temperature to form adhesive bonds between substrates without external application of heat, light or other radiation. The adhesive compositions comprise one or more ethylenically unsaturated compounds such as polymerizable acrylic or methacrylic acid esters, a source of free radicals, and an activator comprising a pyrazoline compound.Type: GrantFiled: October 21, 1980Date of Patent: January 10, 1984Assignee: USM CorporationInventors: Herbert Bauer, Gerhard Piestert
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Patent number: 4417753Abstract: A method and apparatus for joining sealingly incompatible plastic materials is disclosed. A coextruded connector (10) with separate, telescopically related layers (12,14) is affixed to one of the materials. The outer layer (14) of connector (10) is composed of a polymer specifically selected to melt or deform at a temperature lower than that of inner layer (12). The connector is frictionally fit within a second material to be joined and the connection is heated to a temperature sufficient to melt or deform outer layer (14) without melting inner layer (12). Outer layer 14 is thereby securely fused to the second material or blood container.A secondary embodiment is disclosed for joining materials of similar composition. Two coextruded connectors (40,46), having telescopically related layers composed of different polymer materials, are formed, as above, but the layer sequence of each connector is opposite to the other.Type: GrantFiled: May 21, 1981Date of Patent: November 29, 1983Assignee: Baxter Travenol Laboratories, Inc.Inventors: David Bacehowski, Paul Measells, Kenneth Zabielski
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Patent number: 4404345Abstract: Adhesive compositions are described which consist of an adhesive base as a first part and an initiator portion as a second part, said first part consisting essentially of (a) 100 parts by weight of a polymerizable monomer having at least one .alpha.,.beta.-unsaturated carboxyl functionality; (b) about 0.05 to 20 parts by weight of a halogenated organic compound as an accelerator; and (c) an inhibitor of free-radical polymerization; and the second part comprising a condensation reaction product of an aldehyde and a primary or secondary amine. These compositions may be formulated as adhesives which, for example, exhibit pressure-sensitive properties, which are particularly suitable in hot-melt applications, or which are particularly suitable as structural adhesives. Bonding methods are also described herein.Type: GrantFiled: September 16, 1981Date of Patent: September 13, 1983Assignee: Minnesota Mining and Manufacturing CompanyInventor: Edward W. Janssen
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Patent number: 4398984Abstract: In producing an article having a structurally primary part obtained by press-forming of a metal sheet to which a lubricant is applied beforehand and a secondary part stuck to the primary part with an adhesive, troublesome procedures for removal of the lubricant from the press-formed metal part precedent to adhesion-bonding of the secondary part can entirely be omitted without sacrificing the strength of adhesion between the primary and secondary parts by using an adhesive that has high chemical affinity with the lubricant remaining on the surface of the press-formed metal part. Preferably use is made of a solid lubricant containing organic polymeric substance as its principal component. In many cases the secondary part is made of a nonmetallic material, either an organic material or an inorganic material.Type: GrantFiled: June 10, 1981Date of Patent: August 16, 1983Assignee: Nissan Motor Co., Ltd.Inventors: Toshihiko Uchiyama, Eizo Yoshida, Toshiki Okuyama
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Patent number: 4397707Abstract: Adhesion between an adhesive of the class of polymerizable liquid ethylenically unsaturated compounds containing a single vinyl group and solid polyester-containing plastic materials is improved by treating the substrate with a primer composition comprising an aromatic polyisocyanate and an amino resin and moisture-curing the polyisocyanate compound prior to application of the adhesive. The adhesive-joined assemblies are cured in a first stage at room temperature and, in a second stage, are post-baked at 100.degree. to 150.degree. C. to complete cure of the adhesive and the primer.Type: GrantFiled: January 20, 1982Date of Patent: August 9, 1983Assignee: Lord CorporationInventor: Terrance H. Dawdy
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Patent number: 4395301Abstract: Novel, improved adhesive compositions curable at ambient temperature to form adhesive bonds between opaque, impervious, substrates without external application of heat, light or other radiation. The adhesive compositions of this invention comprise one or more ethylenically unsaturated monomers, a source of free radicals, and an activator comprising an azine dye material or the reaction product of an azine dye material with a reducing agent.Type: GrantFiled: November 24, 1980Date of Patent: July 26, 1983Assignee: USM CorporationInventors: Herbert Bauer, Gerhard Piestert, Heinz G. Gilch
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Patent number: 4388139Abstract: A method of fabricating a strip thermometer comprising the steps of applying a plurality of cholesteric liquid crystal compositions exhibiting color changes over different temperature responsive ranges to a first substrate; coating a second substrate with an uncured solid film forming epoxy resin composition; partially curing the epoxy resin composition coating on the second substrate to a non-absorbing partially cured state in which the cholesteric liquid crystal compositions will not be absorbed by the epoxy resin composition; placing the first and second substrates together so that the partially cured epoxy resin composition overlies the cholesteric liquid crystal compositions; forcing the first and second substrates toward each other to cause the partially cured epoxy resin composition to flow around the cholesteric liquid crystal compositions and into contact with the first substrate; and subsequently, finishing the curing of the epoxy resin composition to bond the epoxy resin composition to the first suType: GrantFiled: July 14, 1980Date of Patent: June 14, 1983Inventor: David L. Fuller
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Patent number: 4379008Abstract: A method and apparatus for sealing plastic or synthetic coated sealing surfaces of cardboard containers to each other is disclosed. One feature of the invention resides in preheating (by 15) of at least one (48) of the plastic or synthetic layers and then sealing (station 16) by the simultaneous application of heat and pressure. Another feature of the invention resides in the fact that the pressure is applied at spaced intervals (by 40) and in such a manner that one (47) of the plastic or synthetic sealing layers remains with the top of the box upon removal thereof. A container sealed in such a manner is also taught.Type: GrantFiled: November 3, 1980Date of Patent: April 5, 1983Assignee: AB Akerlund & RausingInventors: Helmut Gross, Hermann Hauck
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Patent number: 4376006Abstract: A magnetic recording structure comprises (1) a substrate having an outer surface, and (2) a laminar magnetic recording piece disposed adjacent to at least one part of the outer surface of the substrate, the recording piece comprising a magnetic layer, a color layer and a non-magnetic metal deposition layer interposed between the magnetic layer and the color layer, the magnetic layer being closer to the substrate than the color layer.The non-magnetic metal deposition layer disposed on the magnetic layer has high hiding power and, even in the form of an extremely thin layer, can effectively hide the color of the magnetic material.Accordingly, this magnetic recording structure can be produced with a surface of a beautiful color without impairing its magnetic characteristics.Type: GrantFiled: July 24, 1981Date of Patent: March 8, 1983Assignee: Dai Nippon Insatsu Kabushiki KaishaInventors: Seiichi Nishikawa, Makoto Honda
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Patent number: 4374170Abstract: A new composition of matter comprises the product of the amassment of two or more arrays of glass roving or other suitable filaments, each of which array has been coated or impregnated with one of two complementary resin systems, preferably thermosetting polyester resin systems. Each such complementary resin system comprises substantially the same or functionally similar resin and each further comprises a curing agent, for example, in the case of polyester resin an organic peroxide, which curing agent differs from the curing agent in the other resin system. The resin system of each array further comprises suitable accelerator which is substantially ineffective to promote the curing agent of the resin system in which it is incorporated, but which does effectively promote the curing agent of the other, complementary resin system. Upon amassment of the separate arrays the two accelerators act synergisticly in the combined resin system.Type: GrantFiled: November 9, 1981Date of Patent: February 15, 1983Assignee: Ford Motor CompanyInventor: Donald G. Fesko
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Patent number: 4362586Abstract: Polyamide resins are used as primer for highway repairs using asphaltic membranes.Type: GrantFiled: November 7, 1980Date of Patent: December 7, 1982Assignee: Owens-Corning Fiberglas CorporationInventors: William E. Uffner, Robert N. White
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Patent number: 4355074Abstract: Sheet-like material, such as wallpaper, posters or labels, can be stripped dry from surfaces to which they have been bonded after adhesive layers (applied in an aqueous medium) have dried. Adhesives which contain film-forming, water-soluble or water-swellable polymers are used. Separate layers containing two different adhesive polymers, particularly polysaccharide derivatives, are provided between the sheet-like material and the surface to which it is to be bonded, one of the two layers containing at least one non-ionic polymer and the other containing at least one ionic polymer. The invention includes the use of these adhesives (containing different film-forming, water-soluble or water-swellable polymers) in preparing dry-strippable sheet-like material and sheet-like material, such as wallpaper, posters or labels, having adhesive layers which can be reactivated by moistening with water and which comprise these adhesives.Type: GrantFiled: June 24, 1980Date of Patent: October 19, 1982Assignee: Hoechst AktiengesellschaftInventors: Hermann Stemmler, Volker Knittel
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Patent number: 4342613Abstract: A method of applying a two component solid adhesive formulation to surfaces to be bonded. Each component of the formulation is applied to a surface in the form of discrete discontinuous deposits. When the sheets pass through nip rolls, the opposed deposits contact and are thoroughly mixed forming a continuous film of adhesive which is subsequently cured.Type: GrantFiled: January 5, 1981Date of Patent: August 3, 1982Inventors: James N. O'Leary, Edward J. Bruzinski
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Patent number: 4329194Abstract: A method of constructing a fiberglass structure features that enable a gelcoat protective layer to be applied to an article formed in an automatic process. In the process, a web of fiberglass is drawn through a bath of structural resin to impregnate the fiberglass with the structural resin. A web of organic, porous veil material is drawn through a bath of gelcoat resin simultaneously with the structural resin impregnated web of fiberglass. The two webs are squeezed together, and the resin metered to provide a composite web having a layer of resin and a layer of gelcoat. A mold draws the composite web off of the rollers. Once a section has been drawn onto the mold, the web is sheared. Then the mold is moved into an oven for heating and curing the article.Type: GrantFiled: August 18, 1980Date of Patent: May 11, 1982Assignee: Composite Technology, Inc.Inventors: Andrew Green, Charles W. Rogers, Clarence D. Upton
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Patent number: 4298416Abstract: Substrates which are susceptible to corrosion by the action of chemical agents in gas-containing and/or gas-generating media are rendered resistant to said corrosion by the application thereto of a coating of a gas-permeable elastomeric or plastic material, and providing for means of escape of gases permeating the coating, thereby maintaining the adhesion of the coating to the substrate. Preferably the coating in applied first to a porous backing material such as woven glass cloth, so that the pores of the backing material are left substantially open to let gas escape. The laminate of coating and porous backing material is then adhesively secured to the substrate in such a way that the pores in the backing material are left partly open to let gas escape.Type: GrantFiled: April 5, 1979Date of Patent: November 3, 1981Assignee: Huron Chemicals LimitedInventors: Harold V. Casson, Grant G. Crabtree, Bruno Kindl, Edward B. Noonan
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Patent number: 4297158Abstract: Non-toxic tertiary amines having very low vapor pressures and substantially insolubility in water and fats are employed as free radical catalyst activators for adhesive compositions comprising polyurethane polymers or elastomers dissolved in an addition polymerizable combination of an acrylic or methacrylic monomer, a copolymerizable monomer containing a free carboxylic acid group and a non-activated free radical polymerization catalyst.Type: GrantFiled: April 2, 1979Date of Patent: October 27, 1981Assignee: Pratt & Lambert, Inc.Inventors: Leon E. Wolinski, Peter D. Berezuk
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Patent number: 4285755Abstract: Adhesive composition based on acrylate monomers and a peroxide, together with selected halogenated aliphatic acids, which is storage stable and can be used as an anaerobic adhesive composition and a method of bonding by use of that adhesive to quickly form adhesive bonds to steel, copper, zinc and brass without use of a primer, which bonds do not lead to significant corrosion of the metals.Type: GrantFiled: September 17, 1979Date of Patent: August 25, 1981Assignee: USM CorporationInventors: Gerhardt Piestert, Heinz G. Gilch
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Patent number: 4268553Abstract: An improved method for preparing multi-pane glazing units using a two-part adhesive system and improved glazing units prepared by the method.Type: GrantFiled: April 2, 1979Date of Patent: May 19, 1981Assignee: USM CorporationInventors: Taieb Marzouki, Bernd Schweisser
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Patent number: 4249978Abstract: A method of forming a heat-sealable carton having a pair of mating surfaces to be sealed includes the steps of coating at least one of the carton surfaces with a heat-activated thermosetting adhesive, spraying a fine mist of a water-based adhesive which exhibits high contact tackiness when dry, to form a discontinuous film on the coated surface, heating the water-based adhesive coated surface to a temperature sufficient to dry the water-based adhesive and activate the thermosetting adhesive, placing the mating carton surfaces in contact with each other and applying pressure for a time sufficient to seal the contacting surfaces together. A carton formed by the method is provided with flaps sealed by the combination of thermosetting heat-activated adhesive and high tack water-based adhesive. This allows the mating surfaces to be rapidly sealed by automatic carton closing apparatus and results in a sealed carton which exhibits good seal integrity at high temperatures.Type: GrantFiled: April 19, 1979Date of Patent: February 10, 1981Assignee: Kliklok CorporationInventor: Thomas R. Baker
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Patent number: 4243453Abstract: A composite pressure sensitive adhesive construction contains a central release liner, a layer of an adhesive on each side thereof, and an exterior release liner on at least one of the adhesive layers. The central release liner and the exterior release liner contain release coatings on surfaces thereof which contact the adhesive layer. The composite construction may be made up in the form of a roll for easy dispensing or in the form of a precut tape. The pressure sensitive adhesive construction is generally useful for making any type of sealing connection wherein an initial releasable connection is desired. For example, the pressure sensitive adhesive construction may be utilized in sealing pipe insulating jackets wherein the exterior release liners are removed and the adhesive construction is applied to the opposite longitudinal ends or sides of the insulating jacket cover.Type: GrantFiled: May 14, 1979Date of Patent: January 6, 1981Assignee: Morgan Adhesives CompanyInventor: Jack M. McClintock
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Patent number: 4243462Abstract: A heat-curable multilayer composite sheet comprising a layer comprising one or more unsaturated compounds which are normally solid or liquid free radical reactive unsaturated compounds and a layer comprising a normally solid or liquid free radical initiator, the layers being bonded to each other as a laminate as separate layers at a temperature at which the free radical initiator does not lose its free radical reaction-initiating capability, and,a process for preparing a heat-curable multilayer composite sheet, which comprises coating a layer-forming material containing a normally solid or liquid free radical reactive unsaturated compound on a strippable sheet to form an unsaturated compound material layer on the strippable sheet, coating a layer-forming material containing a normally solid or liquid free radical initiator on a strippable sheet to form a free initiator layer on the strippable sheet, bringing the unsaturated compound material layer into contact with the free radical initiator layer, and bondinType: GrantFiled: May 4, 1979Date of Patent: January 6, 1981Assignee: Nitto Electric Industrial Co., Ltd.Inventors: Yutaka Hori, Hidekazu Takahashi, Makoto Sunakawa, Ichiro Ijichi, Kiyohiro Kamei
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Patent number: 4239571Abstract: A method of forming a layered composite material of the type formed under heat and low pressure and to one outer surface of which a protective thermosetting polymer is bonded.Type: GrantFiled: October 25, 1978Date of Patent: December 16, 1980Assignee: Composite Technology CorporationInventor: A. Lawrence Cobb
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Patent number: 4239829Abstract: An adhesive bonding method and apparatus includes a pair of opposed web members having confronting surfaces provided with cooperatively engaging hook and loop portions. The hook portion of one confronting surface is saturated with an epoxy resin or the like, and the loop portion of the other confronting surface is saturated with a catalyst for the resin. The web members are urged together to engage the hook and loop portions and to intermix the catalyst and the resin.Type: GrantFiled: February 4, 1980Date of Patent: December 16, 1980Inventor: Howard S. Cohen
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Patent number: 4232608Abstract: A composition is disclosed in which a solid isocyanate compound such as toluene-diisocyanate dimer is dispersed within a polyurethane based on a hydroxy-terminated organic compound, preferably polybutadiene. The composition can be fully cured on a surface and yet provides an excess of stable material, i.e. dormant isocyanate containing groups, which are reactive on demand to strengthen interfaces with adjacent layers containing available hydroxyl groups, such as a layer of solid polyurethane-based propellant, without the need for intermediate reactive coatings.Type: GrantFiled: December 4, 1978Date of Patent: November 11, 1980Assignee: Aerojet-General CorporationInventor: John M. Wrightson
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Patent number: 4200480Abstract: Pipe sections of polyester fiberglass, epoxy fiberglass or of other diverse or same materials are adhesively joined together or to reaction vessels by applying to one mating surface an adhesive composition comprising a solution of non-reactive elastomer as for example, butadieneacrylonitrile rubber dissolved in a mixture of polymerizable acrylic monomers and acrylic acid monomer such as methyl methacrylate and acrylic acid, containing a polymerization catalyst such as benzoyl peroxide, and applying to the other mating surface a tertiary amine activator, bringing the mating surfaces together and allowing the adhesive to cure to a set. In another embodiment the tertiary amine is encapsulated in a rupturable microsphere and dispersed in the adhesive composition. The microspheres may be ruptured before or after the adhesive is applied.Type: GrantFiled: November 7, 1977Date of Patent: April 29, 1980Assignee: Pratt & Lambert, Inc.Inventors: Leon E. Wolinski, Peter D. Berezuk
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Patent number: 4198739Abstract: A printing roller and cover therefor and a novel method for their manufacture are provided. A thin tube of heat shrinkable polymeric material is bonded to a metal or a rubber covered metal core. The thin tube is coated on its inner surface with a thermoplastic adhesive and the solvents in the adhesive are evaporated to produce a tack-free adhesive coating. The core is placed within the tube and the tube is heat shrunk around the core at a temperature sufficient to melt the adhesive, thus bonding the tube to the core. Preferably, the core is primed with an adhesive which will cross-link with the adhesive applied to the tube. The thermoplastic tube covering the core is preferably a long-lasting polymer substantially inert to chemical attack, such as a fluorinated hydrocarbon or polyolefin.Type: GrantFiled: May 19, 1976Date of Patent: April 22, 1980Assignee: Rodel, Inc.Inventors: William D. Budinger, James L. Keen, Joseph D. Kellner
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Patent number: 4188445Abstract: A laminated fabric includes a layer of woven olefin yarns bonded to a layer of non-woven olefin material to form a unitary fabric structure.Type: GrantFiled: December 21, 1978Date of Patent: February 12, 1980Assignee: Chromatex, Inc.Inventor: Philip R. Hill
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Patent number: 4184005Abstract: A process for the production of laminated films employing a two component non-solvent adhesive system, which comprises the steps of applying a thin film of at least one polyether having at least two terminal isocyanate groups and a molecular weight between 2000 and 5000 to one of two films to be bonded together, applying a thin film of at least one long chain compound having at least two reactive terminal amino groups to the other film to be bonded, the application of both thin films being in such amounts that the molar ratio of isocyanate groups to amine groups is from 1:1 to 5:1 and the two components together being present in an amount of 0.5 to 5.0 gm/m.sup.2, pressing the coated sides of the two coated films together and recovering said laminated films.Type: GrantFiled: April 20, 1978Date of Patent: January 15, 1980Assignee: Henkel Kommanditgesellschaft auf Aktien (Henkel KGaA)Inventors: Hans Bauriedel, Rainer Hasenkamp
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Patent number: 4182644Abstract: Adhesive compositions comprising a solution of polymer dissolved in acrylic monomers containing an organic sulfonyl chloride, a polymerization catalyst and an accelerator.Type: GrantFiled: September 8, 1978Date of Patent: January 8, 1980Assignee: E. I. Du Pont de Nemours and CompanyInventors: Paul C. Briggs, Jr., Lawrence C. Muschiatti
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Patent number: 4180640Abstract: Curable acrylate ester compositions having as an accelerator for the polymerization a hydrazine derivative of the formula R.sup.1 --HN--NH--CO--R.sup.2 and as a co-accelerator, an acid having a pK.sub.a of less than about 6. The compositions may optionally be formulated as two-part compositions with the non-ester-containing part being applied as a primer. Typical of the monomers are the polyalkylene glycol dimethacrylates and the so-called urethane acrylates. Polymerization is preferably initiated by a peroxy compound such as cumene hydroperoxide, such a composition having anaerobic curing characteristics.Type: GrantFiled: October 31, 1977Date of Patent: December 25, 1979Assignee: Loctite CorporationInventors: David P. Melody, Daniel A. Doherty, John F. O'Grady, Richard D. Rich