Foaming Patents (Class 156/78)
  • Patent number: 6126766
    Abstract: A method and an industrial robotic device for uniformly applying coatings at appropriate thickness and pitch upon a surface moves a spray applicator foam dispenser between two parallel tracks. The uniform application of foam at each pass is assured, by accelerating the speed of the foam dispenser at the end of each pass, by providing respective curved uphill distal ends of the tracks, so that the spray applicator foam dispenser moves up the curved distal ends and returns quickly while changing speed tilt and direction at the end of each pass.
    Type: Grant
    Filed: March 11, 1999
    Date of Patent: October 3, 2000
    Inventor: John P. Hunter, Jr.
  • Patent number: 6117256
    Abstract: A method and an industrial robotic device for uniformly applying coatings at appropriate thickness and pitch upon a surface moves a spray applicator foam dispenser between two parallel tracks. The uniform application of foam at each pass is assured, by accelerating the speed of the foam dispenser at the end of each pass, by providing respective curved uphill distal ends of the tracks, so that the spray applicator foam dispenser moves up the curved distal ends and returns quickly while changing speed tilt and direction at the end of each pass.
    Type: Grant
    Filed: March 11, 1999
    Date of Patent: September 12, 2000
    Inventor: John P. Hunter, Jr.
  • Patent number: 6113718
    Abstract: A method for manufacturing a solar cell module including a photovoltaic cell between a surface covering material and a back-surface covering material is disclosed that includes the steps of sequentially laminating a member elastically deformable in the direction of the thickness and a member having a flexural rigidity on the surface covering material and/or the back-surface covering material, and providing an external pressure to the member having the flexural rigidity to cover the photovoltaic cell with the surface covering material and the back-surface covering material. According to the above-described manufacturing method, by providing the member elastically deformable in the direction of the thickness, it is possible to prevent deformation and breakage of the photovoltaic cell and rupture of the covering materials.
    Type: Grant
    Filed: December 29, 1997
    Date of Patent: September 5, 2000
    Assignee: Canon Kabushiki Kaisha
    Inventors: Satoru Yamada, Takahiro Mori, Ichiro Kataoka, Hidenori Shiotsuka, Ayako Shiotsuka
  • Patent number: 6096416
    Abstract: It has been discovered that improved poured-in-place sandwich panels may be made which have a planar, rigid, cellular polyisocyanurate or polyurethane foam core, an interior facer on one side of the polyisocyanurate foam core and a metal skin on the other, opposite side of the polyisocyanurate foam core. Adhesion of the metal skin to the polyisocyanurate or polyurethane foam core is improved through the use of a primer layer, such as a polyurea or a polyepoxide. Preferably, glass fibers are provided in the polyisocyanurate or polyurethane foam core as reinforcement and as fire retardant.
    Type: Grant
    Filed: June 25, 1998
    Date of Patent: August 1, 2000
    Inventor: Milton J. Altenberg
  • Patent number: 6068802
    Abstract: A method for the assembly of doors having a pair of skins and a core of synthetic resin forms a first door element including forming a first skin and a peripheral wall to provide an upwardly opening cavity into which a foamable synthetic resin formulation is introduced. A second skin is then assembled over the cavity, and the resultant door assembly is passed through an elongated heating zone while controlling the thickness dimension of the door assembly to expand and cure the resin formulation in the cavity into a cellular resin insulating core and to bond the skins and core. The several steps are conducted seriatim at stations along a conveyor assembly.
    Type: Grant
    Filed: July 24, 1998
    Date of Patent: May 30, 2000
    Assignee: The Stanley Works
    Inventors: David M. Berghorn, John Martini
  • Patent number: 6054176
    Abstract: A process for making PU air permeable nubuck sheets includes coating a separable release substrate material such an cloth, plastics, or paper with a polyurethane (PU) resin preparation before disposing the same in an impregnation tank to allow the PU resin to congeal into a sheet of minute pores attached to the release substrate material. The release substrate material together with the sheet is soaked in a wash tank to rinse off residual dimethyformamide (DMP) A beck surface of the release substrate material is coated with a water soluble resin (which may later dissolve in water and then be rinsed off) and the release substrate material is put into an oven to dry and then removed to a grinder for processing into a nubuck sheet with the feel and visual characteristics of real nubuck. The nubuck sheet is washed in a wash tank to rinse off the water soluble resin, dried, subjected to surface finishing, and than separated from the release substrate material to obtain a PU air permeable nubuck sheet.
    Type: Grant
    Filed: June 8, 1999
    Date of Patent: April 25, 2000
    Assignee: Chifa Leather Corp.
    Inventors: Ping-Hung Kuo, Lung-Chieh Hsieh
  • Patent number: 6047518
    Abstract: An accurate method and apparatus for installing blown-in-place insulation to a predetermined density and R-value includes the use of a removable container of known unfilled weight and volume located between wall studs during the blowing operation. By removal of the container after filled, and determining its fill weight by weighing it, the density of the insulation is calculated and correlated, if desired, to R-value. If the calculated density is not acceptable, the container is emptied and is reinserted in the cleaned out cavity between the studs. Appropriate adjustments to one or more operating parameters are made until the desired density through further filling of the container and weighing it is achieved. Once achieved, the space to be filled is filled with blown-in-place insulation using the adjusted parameter values.
    Type: Grant
    Filed: August 31, 1998
    Date of Patent: April 11, 2000
    Assignee: Guardian Fiberglass, Inc.
    Inventor: Clifton E. Lytle
  • Patent number: 6037032
    Abstract: A process for producing a carbon foam heat sink is disclosed which obviates the need for conventional oxidative stabilization. The process employs mesophase or isotropic pitch and a simplified process using a single mold. The foam has a relatively uniform distribution of pore sizes and a highly aligned graphic structure in the struts. The foam material can be made into a composite which is useful in high temperature sandwich panels for both thermal and structural applications. The foam is encased and filled with a phase change material to provide a very efficient heat sink device.
    Type: Grant
    Filed: June 8, 1998
    Date of Patent: March 14, 2000
    Assignee: Lockheed Martin Energy Research Corp.
    Inventors: James W. Klett, Timothy D. Burchell
  • Patent number: 6033506
    Abstract: The process obviates the need for conventional oxidative stabilization. The process employs mesophase or isotropic pitch and a simplified process using a single mold. The foam has a relatively uniform distribution of pore sizes and a highly aligned graphic structure in the struts. The foam material can be made into a composite which is useful in high temperature sandwich panels for both thermal and structural applications.
    Type: Grant
    Filed: September 2, 1997
    Date of Patent: March 7, 2000
    Assignee: Lockheed Martin Engery Research Corporation
    Inventor: James W. Klett
  • Patent number: 6030673
    Abstract: Compositions, methods, and systems for manufacturing articles, particularly containers and packaging materials, having a particle packed, highly inorganically filled, cellular matrix are disclosed. Suitable inorganically filled mixtures are prepared by mixing together a starch-based binder, a solvent, inorganic aggregates, and optimal admixtures, e.g., fibers, mold-releasing agents, rheology-modifying agents, plasticizers, coating materials, and dispersants, in the correct proportions to form an article which has the desired performance criteria. The inorganically filled mixtures have a predetermined viscosity and are heated between molds at an elevated temperature and pressure to produce form-stable articles having a desired shape and a selectively controlled cellular, structure matrix. The molded articles may be placed in a high humidity chamber to obtain the necessary flexibility for their intended use.
    Type: Grant
    Filed: February 8, 1999
    Date of Patent: February 29, 2000
    Assignee: E. Khashoggi Industries, LLC
    Inventors: Per Just Andersen, Simon K. Hodson
  • Patent number: 6030476
    Abstract: An insulating container comprising a container body having at least one side wall and a bottom wall with the side wall including a base layer, an insulating layer on at least a portion of the base layer and a printed pattern, mineral oil application or combination thereof on at least a portion of the surface of the insulating layer is disclosed wherein a thickness of the insulating layer is controlled by the printed pattern and/or mineral oil on the selected portion of the insulating layer. Similarly, stock material incorporating the present invention includes a base layer, an insulating layer formed on at least a portion of the base layer and a printed pattern printed on and or mineral oil applied to the insulating layer is disclosed wherein the thickness of the insulating layer is again controlled by the printed pattern and/or mineral oil on the portion of the insulating layer.
    Type: Grant
    Filed: April 11, 1997
    Date of Patent: February 29, 2000
    Assignee: Fort James Corporation
    Inventors: Daniel James Geddes, Michael Andrew Breining, Michael Schmelzer
  • Patent number: 6017597
    Abstract: The objectives of the invention is to obtain the complex cell structured material which has the advantages of toughness and of being light in weight. Also it is economical when utilized in the field of the general structural materials such as architecture, civil engineering, machinery structure field, automobiles, ships, cars, aircrafts, space crafts, space stations, submarines. The manufacturing of this invention also consists of simple procedures. A complex cell structure is comprised of a maintained spatial surface on which is the complex cell bodies are bonded. The complex cell bodies are distributed/bonded on the maintained spatial surface. The maintained spatial surface is rolled, annual ring shaped, whirlpooled, laminated, plate shaped or crossed. The liquid coagulant fills the empty space. The coagulant is coagulated to produce the complex cell structure. Also, the method to produce is as follows. Prepared complex cell bodies are composed of rigid sections and a light material.
    Type: Grant
    Filed: June 5, 1997
    Date of Patent: January 25, 2000
    Inventors: Hiroyuki Minakami, Motoyuki Minakami
  • Patent number: 6012263
    Abstract: A loose-fill insulation product is provided which includes a dry mixture of loose-fill fiberglass and an inorganic (being composed of matter other than plant or animal) adhesive in the form of a redispersible powder. During application, the dry loose-fill mixture is coated with a liquid (e.g. water) so as to activate the adhesive. Thereafter, the loose-fill mixture with activated adhesive is blown or sprayed into a cavity (open or closed) so as to insulate same. According to certain embodiments, this mixture may be blown into open attic areas so as to insulate same and reduce the movement of loose-fill insulation. It has been found that the redispersible powder (RP) dry adhesive mixes more uniformly within the dry mixture and clings better to the glass fibers when the mixture is substantially free of anti-static material. In certain embodiments, a color dye is provided in the mixture, and is activated upon installation.
    Type: Grant
    Filed: July 31, 1997
    Date of Patent: January 11, 2000
    Assignee: Guardian Fiberglass, Inc.
    Inventors: Joseph T. Church, Charles Chenoweth, Gary E. Romes, Mark H. Vagedes
  • Patent number: 5997675
    Abstract: A composition containing thermoplastic elastomer and elastic fine particles is extruded into a sheet-like shape from an extruder. Then, by expanding this sheet-like shape member, a covering sheet having minute unevenness attributable to the elastic fine particles formed on the surface is produced. The covering sheet may have an adhesive layer, a substrate layer, a foamed resin layer, etc., on the opposite side to the surface having a matt feeling. Such covering sheet can be produced with good productivity without creating environmental problems such as a problem related to solvent, etc. By molding using the covering sheet, a molding having matt feeling can be obtained.
    Type: Grant
    Filed: July 15, 1998
    Date of Patent: December 7, 1999
    Assignee: Sekisui Kagaku Kogyo Kabushiki Kaisha
    Inventors: Akitaka Miyake, Tomoko Uematsu, Toshimitsu Tsuji
  • Patent number: 5976289
    Abstract: A method of fabricating an instrument panel includes providing a skin which forms a surface of the instrument panel and has side face portions extending rearwardly from a front face portion and providing a panel core having a recess for defining a molding space between the panel core and the skin. The front face portion and the side face portions define a bend angle. The recess of the panel core has peripheral walls for engaging the side face portions and the peripheral walls and a surface of the recess define a regular angle which is less than the bend angle. The bend angle, for instance, is larger than the regular angle by 2.degree. to 8.degree., and preferably by 3.degree. to 5.degree.. The panel core is placed in a first die and the skin is place in a second die such that the side face portions are deflected to fit into the recess of the panel core during mold closing. The dies are closed and a foaming material is injected between the panel core and the skin to integrate the panel core and the skin.
    Type: Grant
    Filed: November 24, 1997
    Date of Patent: November 2, 1999
    Assignee: Toyo Tire & Rubber Co., Ltd.
    Inventors: Yasushi Kawakubo, Shiro Ozaki
  • Patent number: 5976288
    Abstract: A method of forming a molded, multi-layer structure begins with a pre-laminated, multi-layer structure having a thermoplastic substrate layer and a cover layer. One or more optional layers laminated may be provided between the cover layer and substrate layer. Thermoplastic materials are selected having various physical characteristics (e.g. degrees of cross-linking) to produce a molded structure having a desired shape, rigidity, hardness/softness, and other physical properties. All of the multiple layers can be made of thermoplastic materials having the same polymers to allow the molded structure to be recycled into a reusable thermoplastic material. The pre-laminated, multi-layer structure is uniformly heated, by a method which provides heat penetration and absorption substantially throughout the multi-layer structure. During thermoforming, such as with male/female molds or vacuum molds, the thickness and rigidity of the multi-layer structure can be varied.
    Type: Grant
    Filed: January 10, 1997
    Date of Patent: November 2, 1999
    Inventor: Lars O. Ekendahl
  • Patent number: 5973018
    Abstract: This invention is a partially or semi-cured foam used to form the pipe insulation. The semi-cured foam is very flexible and can be formed around a pipe for a long period of time after production. The semi-cured phenolic foam board of this invention is a closed cell foam. The semi-cured foam is further cured in the formed shape. Upon curing the foam retains the shape of the preform. The semi-cured product is very flexible, once fully cured, the insulation becomes rigid.
    Type: Grant
    Filed: October 4, 1995
    Date of Patent: October 26, 1999
    Assignee: Owens-Corning Fiberglas Technology, Inc.
    Inventors: Vyacheslav S. Grinshpun, Byron Jeffrey Hulls, William H. Fausey
  • Patent number: 5962541
    Abstract: NCO-terminated prepolymers are made by reacting a polymeric diphenylmethane diisocyanate (PMDI) and a polyol having a functionality of from about 1.8 to about 4.0 and a molecular weight of from about 400 to about 2,000. The PMDI and polyol are reacted in amounts such that the equivalent ratio of isocyanate groups to hydroxyl groups is from about 15:1 to about 160:1. These prepolymers are useful in the production of polyurethane foams, particularly laminated foams.
    Type: Grant
    Filed: June 10, 1998
    Date of Patent: October 5, 1999
    Assignee: Bayer Corporation
    Inventors: Brian H. Peterson, Frank C. Rossitto, William J. Nicola, Jr., Clarence D. Blue
  • Patent number: 5958164
    Abstract: A thermoplastic polyester resin is fed into a twin extruder, wherein a resin is heated for melting, thereby removing moisture in the resin by evacuating and sucking from a vent port thereof, injecting a foaming agent into the resin to which is pushed out as a foaming sheet and, after that, forming the foaming sheet which is divided into a forming body and a trimming loss, whereby the trimming loss is crushed to obtain crushed materials which are provided so as to put the materials into the twin extruder as collection materials and recycle them.
    Type: Grant
    Filed: December 27, 1995
    Date of Patent: September 28, 1999
    Assignee: Sekisui Kaseihin Kogyo Kabushiki Kaisha
    Inventors: Susumu Ishiwatari, Masahiro Tsubone, Takaaki Hirai, Masahiro Shindo, Kiyoshi Yoshioka, Nobuyuki Tsujiwaki
  • Patent number: 5951796
    Abstract: A two component polyurethane adhesive and a method of bonding construction materials to various construction substrates. The adhesive being the reaction product of two separate components that are mixed together immediately prior to application upon dispensing onto a substrate. The first part of the adhesive, referred to as the "A-side" is a polyisocyanate prepolymer, preferably a polymeric MDI (methylene diphenyl diisocyanate) based prepolymer. The second part of the adhesive, referred to as the "B-side" is a blend of elastomeric and flexible polyglycols. The adhesive formed by mixing the A-side and B-side components, is a frothing foam that has a consistency such that it does not run or drip when applied to the substrate, that expands upon application to the substrate surface to fill voids or imperfections, that collapses when the material to be bonded is placed in contact with the adhesive, and that has a rapid cure time.
    Type: Grant
    Filed: June 23, 1997
    Date of Patent: September 14, 1999
    Assignee: Polyfoam Products, Inc.
    Inventor: Pat L. Murray
  • Patent number: 5944389
    Abstract: A seat cushion comprises a cushion main body formed of a polyurethane molded foam; a seat member formed of a slab flexible polyurethane foam; and a sheet having a gas permeability; wherein part of a foamable liquid for forming the polyurethane molded foam permeates in the sheet and the seat member, and is foamed when the foamable liquid having not permeated in the sheet and the seat member is foam molded, whereby the seat member is integrated with a seat surface portion of the cushion main body through the sheet.
    Type: Grant
    Filed: August 4, 1997
    Date of Patent: August 31, 1999
    Assignee: Bridgestone Corporation
    Inventors: Masaaki Zenba, Yutaka Hirata, Kazushige Ebe
  • Patent number: 5938874
    Abstract: A microporous film can be made by adding a foaming agent to the components of a film material to create bubbles in the film. The microporous film can also be made by adding filaments to the components of the film material and dissolving the filaments to create the pores. In either process, the size of the pores can be controlled to be no greater than 0.027 .mu.m.
    Type: Grant
    Filed: February 28, 1997
    Date of Patent: August 17, 1999
    Assignee: Allegiance Corporation
    Inventors: Joseph A. Palomo, Cynthia A. Wichman
  • Patent number: 5935677
    Abstract: A process for the preparation of a textile floor covering for a motor vehicle includes the steps of wiper blade coating a mixture (2) of foam off-cuts and a self-curing binder in a matrix form (1) of a floor panel of a motor vehicle in a desired layer thickness profile; pressing onto the mixture a textile carpet (4) provided with a heavy layer (3) thereby adjusting the desired density of the foam off-cuts; and curing the binder during the pressing to form an absorption foam backing layer and to bond the backing layer to the heavy layer. In an alternative embodiment, the absorption foam backing layer is first formed and then adhesively bonded to the heavy layer. By means of the invention a strong bond between the backing layer and heavy layer, and a uniform density and distribution of the foam off-cuts is obtainable, whereby a high degree of acoustic dampening efficiency is achieved.
    Type: Grant
    Filed: September 29, 1997
    Date of Patent: August 10, 1999
    Assignee: HP-Chemie Pelzer Research & Development Ltd.
    Inventor: Helmut Pelzer
  • Patent number: 5928770
    Abstract: A tear/puncture resistant material made of polyethylene and polypropylene. The material is ideally suited for wrapping steel or many other uses. The material of the present invention includes four layers attached by lamination. The outer layer is woven polyethylene, which imparts tear resistance to the material. This outer layer is laminated to a layer of extruded polyethylene. This layer, which provides breaking and puncture resistance to the material, is laminated to a layer of polypropylene, which provides additional elasticity. The layer of polypropylene is laminated to an inner layer of polyethylene impregnated with a volatile corrosion inhibitor (VCI) such as sodium nitrite. This inner layer, which increases the puncture resistance of the material, provides corrosion protection to the wrapped object, e.g. a steel roll.
    Type: Grant
    Filed: January 8, 1998
    Date of Patent: July 27, 1999
    Inventor: Victor Manuel Quinones
  • Patent number: 5928772
    Abstract: The panel material of the present invention comprises (A) two sheets of FRP molded board as upper and lower surface materials, and, as a core material, (B) a high density, rigid polyurethane foam layer which has been obtained by injecting a rigid polyurethane foam starting material between these two sheets of FRP molded board and allowing this starting material to foam, and which has a closed cell structure and a density of 0.2.about.0.5 g/cm.sup.3. In addition, the manufacturing method of the panel material of the present invention includes a process for obtaining an integrally molded sandwich panel by injecting a rigid polyurethane foam starting material into a space between two sheets of FRP molded board which have been set in a mold, and allowing it to foam; and a process in which panel material is made by cutting this sandwich panel to a desired size.
    Type: Grant
    Filed: February 9, 1998
    Date of Patent: July 27, 1999
    Assignee: Dainippon Ink and Chemicals, Inc.
    Inventors: Kouji Shiraishi, Hiroshi Tamura, Harunori Kominami
  • Patent number: 5919324
    Abstract: An improved method of forming a vehicle trim part includes the initial step of securing an insert to a vinyl skin in a vacuum mold. The cloth insert is attached to the outer face of the skin, and the two are then placed into a foam mold as a single preform. In this way, if the cloth is improperly connected to the skin, the part can be identified as scrap before foam is injected to complete the part. Once the preform is moved into the foam mold, foam is injected behind the part. Since the preform is positioned within the mold as a single part, the invention more accurately positions the insert and skin relative to the mold prior to foam injection. Again, this improves the quality and appearance of the vinyl part.
    Type: Grant
    Filed: January 17, 1997
    Date of Patent: July 6, 1999
    Assignee: UT Automotive Dearborn Inc.
    Inventors: Roderick Wilson Moffitt, Gary Kohls, Vaughn Vanderpool, Robert L. McHugh
  • Patent number: 5910350
    Abstract: A panel including a starch foam core which is composed of starch, which is one of resilient foam or hardened foam; and which has a form selected from the group consisting of a plurality of strands which are straight and in essentially parallel alignment with one another, and a plurality of strands which are bent and arranged in an undulating path; and at least one outer layer composed of sheet material and provided directly on a surface of the starch foam core in engaging contact therewith; wherein the panel is prepared in a continuous process.
    Type: Grant
    Filed: March 5, 1997
    Date of Patent: June 8, 1999
    Assignee: Bio-Tec Biologische Naturverpackugen GmbH
    Inventors: Juergen Loracks, Winfried Pommeranz, Harald Schmidt
  • Patent number: 5908521
    Abstract: The apparatus includes a two-stage mixer formed within a single housing and including a first high shear mixer and a second low shear mixer. Plaster slurry is formed in the first mixer. A partition is laid on a first fixing sheet, a portion laid on a second fixing sheet, and the remainder discharged to the second mixer. In the second mixer, foam is added and the formed slurry is laid on the unformed slurry on the first fixing sheet. The unformed slurry in the second fixing sheet is brought to the formed slurry to join the product.
    Type: Grant
    Filed: October 27, 1997
    Date of Patent: June 1, 1999
    Assignee: BPB Industries Public Limited Company
    Inventors: John Ainsley, John James Bradshaw, Arthur George Terry Ward
  • Patent number: 5902662
    Abstract: A lightweight dust control mat having enhanced resistance to oxidation and ozonation is provided. The mat includes a rubber backing sheet with a base rubber of NBR or SBR mixed with a polar polymer additive and a chemical blowing agent. The ratio of the base rubber to the polymer additive is between about 1.2 and 9. Following vulcanization, the rubber sheet has a specific gravity of less than about 0.98 and a Bayer ozone cracking incidence factor of 4 or less.
    Type: Grant
    Filed: April 25, 1996
    Date of Patent: May 11, 1999
    Assignee: Milliken & Company
    Inventor: Robert C. Kerr
  • Patent number: 5876534
    Abstract: The invention pertains to a composite panel comprising a foamed thermoplastic core layer which is joined on both sides without adhesive to thermoplastic outer layers reinforced by fiberglass mats. The composite panel is used to make molded parts for motor vehicles.
    Type: Grant
    Filed: June 4, 1997
    Date of Patent: March 2, 1999
    Assignee: Isosport Verbundbauteile Gesellschaft M.B.H.
    Inventor: Gunter Erhardt
  • Patent number: 5868455
    Abstract: A door panel includes a support having a formed area with opposing spaced apart structures and an elongated reinforcement spanning between the opposing spaced apart structures and spaced from the formed area. A flexible cover is positioned on the support including a main panel section covering the support and covering the formed area, and a second panel section wrapped around the reinforcement for covering the reinforcement to form a handle on the door panel. As molded, the flexible cover includes inner, middle, and outer panel sections that are spaced apart to facilitate molding. The outer panel section is convexly shaped and can be inverted so that it abuts the middle panel section. The door panel is constructed by positioning the flexible cover on the support, and flexing the outer panel section inwardly so that a handle-covering portion of the flexible cover completely surrounds the reinforcement.
    Type: Grant
    Filed: August 30, 1996
    Date of Patent: February 9, 1999
    Assignee: Prince Corporation
    Inventors: Rob E. Springer, Dennis J. Beard, David J. Phillips
  • Patent number: 5861119
    Abstract: The method of forming rigid panel assemblies of this invention eliminates the requirement for mechanical fasteners and may be used to bond wall boards to studs, floor joists to wood flooring such as plywood or OSB boards and trusses to ceiling panels. The method of this invention includes applying a thin bead of a thoroughly mixed two-component liquid polyurethane foamable resin adhesive on the surface where the components are to be joined. The foamable resin is formulated to provide a long tack time or delay curing until the assembly is complete. The foamable resin is then allowed to cream and rise before bonding. Where the bead is applied to the side faces of the support members, the support members are preferably turned to orient the foam beads over the fibrous panel, which is preferably supported on a flat horizontal support surface.
    Type: Grant
    Filed: April 18, 1997
    Date of Patent: January 19, 1999
    Assignee: Illinois Tool Works, Inc.
    Inventor: N. Keith Merser
  • Patent number: 5855708
    Abstract: A method for making an article of manufacture (10 or 34) includes making a PVC structural element (12 or 36) with a surface (26), adhesively securing a sheet of stranded material (22) to the surface (26), and molding a sponge material (16 or 40) to the sheet of stranded material (22). The sheet of stranded material (22) is a woven material or nonwoven mat. Securing the sheet of stranded material (22) to the surface (26) includes chemically softening a layer (18) of the structural element (12 or 36) by applying a solvent, applying a plastic cement layer (20) to the softened layer (18), partially embedding the sheet of stranded material (22) into the layer (20) and/or into the layer (18), thereby at least partially encompassing a plurality of first portions (28) of strands (24), and molding the sponge material (16 or 40) onto the partially-embedded sheet of stranded material (22), thereby at least partially encompassing a plurality of second portions (30) of the strands (24).
    Type: Grant
    Filed: February 26, 1997
    Date of Patent: January 5, 1999
    Assignee: PVA Unlimited
    Inventor: Robert E. South
  • Patent number: 5853512
    Abstract: A method and apparatus for fabrication of unitary foam panels wherein frames members are fabricated by forming metal stock into a crossectional channel configuration, cutting and swedging the channel into predetermined lengths. The frame members are swedged to provide frictional interconnection at the corners thereof upon assembly of said frame members into a rectangular frame configuration. Assembly of the frame is accomplished in a shuttle having two assembly jigs. Upon assembly, each frame is moved by the shuttle into a molding press wherein a panel of foam is molded within the frame. The shuttle moves back and forth through the molding press in a manner which provides for removal of a completed panel and assembly of an additional frame from one jig of the shuttle while the molding operation is accomplished within the molding press upon a frame retained within the other jig of the shuttle.
    Type: Grant
    Filed: February 21, 1997
    Date of Patent: December 29, 1998
    Assignee: EFP Corporation
    Inventor: Matthew M. McKinney
  • Patent number: 5850645
    Abstract: An object of the present invention is to provide a seat wherein a surface material of the seat is not crumpled by sliding the surface material on a cushioning body thereof and while a person can sit comfortably in the seat, the seat has adequate hardness such that the weight of the person can be supported. A seat (1) comprises a surface material (2) and a cushioning body (6, 12) covered with the surface material. The cushioning body has a shape corresponding to an outline of the seat and is structured of a first cushioning body (6) as an upper layer and a second cushioning body (12) as a lower layer. The first cushioning body is intergral with at least a part of a back surface of the surface material and is connected with the second cushioning body. The first cushioning body has a contact surface (10) corresponding to the shape of a contact surface (13) of the second cushioning body. The first and second cushioning bodies have fasteners (11a, 11b, 14a, 14b), respectively.
    Type: Grant
    Filed: March 21, 1997
    Date of Patent: December 22, 1998
    Inventors: Taro Ogawa, Fumio Goto
  • Patent number: 5851461
    Abstract: Disclosed is a method of producing polysaccharide foams and foams produced by the method. The polysaccharide foams are formed from a wet condition and are convection dried with a flow of warm or hot air. Such foams exhibit improvements over foams dried under ambient conditions. The present invention also discloses the formation of multi-ply foam layers. At least two sheets of foam layers are layered together and laminated either mechanically or chemically to produce a composite structure.
    Type: Grant
    Filed: February 14, 1997
    Date of Patent: December 22, 1998
    Assignee: Albany International Research Co.
    Inventors: George Bakis, Dana Burton Eagles, John F. Tweedie
  • Patent number: 5844013
    Abstract: Hydrophilic polyurethane gel foams are obtainable from a polyurethane gel defined in the description, from a water-absorbing material and from a non-aqueous foaming agent and can be used in medicine, in particular for the management of deep wounds and wound cavities. Wound dressings are obtainable with a polyurethane sheet as backing and a polyurethane gel foam composed of a polyurethane gel defined in the description, of a water-absorbing material and of a non-aqueous foaming agent.
    Type: Grant
    Filed: May 30, 1995
    Date of Patent: December 1, 1998
    Assignee: Beiersdorf AG
    Inventors: Jochen Kenndoff, Vadim Lenuck, Gunther Sachau
  • Patent number: 5840139
    Abstract: An insulating container comprising a container body having at least one side wall and a bottom wall with the side wall including a base layer, an insulating layer on at least a portion of the base layer and a printed pattern, mineral oil application or combination thereof on at least a portion of the surface of the insulating layer is disclosed wherein a thickness of the insulating layer is controlled by the printed pattern and/or mineral oil on the selected portion of the insulating layer. Similarly, stock material incorporating the present invention includes a base layer, an insulating layer formed on at least a portion of the base layer and a printed pattern printed on and or mineral oil applied to the insulating layer is disclosed wherein the thickness of the insulating layer is again controlled by the printed pattern and/or mineral oil on the portion of the insulating layer.
    Type: Grant
    Filed: April 11, 1997
    Date of Patent: November 24, 1998
    Assignee: Fort James Corporation
    Inventors: Daniel James Geddes, Michael Andrew Breining, Michael Schmelzer
  • Patent number: 5834579
    Abstract: Tertiary amines having carbonate and urethane groups and optionally hydroxyl groups are produced by reacting a) a polyhydric alcohol and b) a primary-tertiary diamine with c) a carbonic acid derivative selected from the group consisting of optionally cyclic carbonates, urea, phosgene and bis-chlorocarbonates of alcohols of the same type as those used as component a). This reaction may be carried out in one or two steps. The tertiary amines produced by this process are useful as catalysts, which may optionally be incorporated into an isocyanate-reactive material, in the isocyanate addition reaction for the production of polyurethane plastics. These tertiary amines are particularly useful for the production of foam backed plastic films.
    Type: Grant
    Filed: June 16, 1997
    Date of Patent: November 10, 1998
    Assignee: Bayer Aktiengesellschaft
    Inventors: Klaus Konig, Ulrich Liman, Josef Sanders
  • Patent number: 5817402
    Abstract: A composition containing thermoplastic elastomer and elastic fine particles is extruded into a sheet-like shape from an extruder. Then, by expanding this sheet-like shape member, a covering sheet having minute unevenness attributable to the elastic fine particles formed on the surface is produced. The covering sheet may have an adhesive layer, a substrate layer, a foamed resin layer, etc., on the opposite side to the surface having a matt feeling. Such covering sheet can be produced with good productivity without creating environmental problems such as a problem related to solvent, etc. By molding using the covering sheet, a molding having matt feeling can be obtained.
    Type: Grant
    Filed: May 23, 1996
    Date of Patent: October 6, 1998
    Assignee: Sekisui Kagaku Kogyo Kabushiki Kaisha
    Inventors: Akitaka Miyake, Tomoko Uematsu, Toshimitsu Tsuji
  • Patent number: 5798160
    Abstract: A foam-plastic core for a structural laminate produced by converting standard, rectangular slabs of closed-cell, rigid foam plastic stock in which the density of each slab varies from the inner to the outer regions thereof into relatively thin panels useable as the core of a structural laminate in which the core is sandwiched between facing sheets. To produce these cores, several standard slabs are stacked and bonded together by parallel lines of adhesive compatible with the foam plastic material to create a large multi-slab block. The block is then sliced transversely in parallel planes normal to the lines of adhesive to yield a plurality of panels. Each panel is composed of a series of interconnected foam-plastic sections derived from respective slabs of the block whereby the density of the sections is evenly distributed throughout the panel and the mechanical properites of the panel are therefore predictable and satisfy structural laminate criteria.
    Type: Grant
    Filed: May 28, 1996
    Date of Patent: August 25, 1998
    Assignee: Baltek Corporation
    Inventor: Henri-Armand Kohn
  • Patent number: 5762735
    Abstract: A laminated carpet pad is manufactured by utilizing liner sheets which are fed along a conveyor path. Uncured, polymeric foam material is sandwiched between the liner sheets and is compressed between opposite facing parallel conveyor belts which are spaced apart so that the sandwiched layer of polymeric foam is compressed to a uniform thickness while curing. Additionally, an inner layer of padding material may be sandwiched between the liner sheets with the polymeric foam material bonding the padding material to the liner sheets as it cures.
    Type: Grant
    Filed: August 9, 1996
    Date of Patent: June 9, 1998
    Inventors: Burley Burk Collins, Miller Durrett Collins
  • Patent number: 5760098
    Abstract: A process is described for producing polyurethane moldings by the reaction of compounds of molecular weight 400 to 10,000 which contain at least 2 hydrogen atoms capable of reacting with isocyanates, and optionally chain extenders of molecular weight 32 to 399, with polyisocyanates, optionally in the presence of foaming agents, auxiliary materials and additives, in which defined carbamates are used as activators. The polyurethanes obtained by this process are particularly low in emissions, i.e. are stable in relation to diffusion and exhibit low fogging, and are thus particularly suitable for the production of composite bodies comprising a polyurethane core and at least one further plastic material as an outer layer. Also described is the use of these moldings and composite bodies which are stable in relation to diffusion and which cause low fogging, e.g. as dashboards or door trims in the construction of vehicles, furniture, machines or apparatus.
    Type: Grant
    Filed: July 31, 1996
    Date of Patent: June 2, 1998
    Assignee: Bayer Aktiengesellschaft
    Inventors: Peter Haas, Ulrich Liman
  • Patent number: 5714099
    Abstract: The method of forming rigid panel assemblies of this invention eliminates the requirement for mechanical fasteners and may be used to bond wall boards to studs, floor joists to wood flooring such as plywood or OSB boards and trusses to ceiling panels. The method of this invention includes applying a thin bead of a thoroughly mixed two-component liquid polyurethane foamable resin adhesive on the surface where the components are to be joined. The foamable resin is formulated to provide a long tack time or delay curing until the assembly is complete. The foamable resin is then allowed to cream and rise before bonding. Where the bead is applied to the side faces of the support members, the support members are preferably turned to orient the foam beads over the fibrous panel, which is preferably supported on a flat horizontal support surface.
    Type: Grant
    Filed: March 21, 1995
    Date of Patent: February 3, 1998
    Assignee: Foamseal, Inc.
    Inventor: N. Keith Merser
  • Patent number: 5705001
    Abstract: Wood fiber, inorganic cellular material, flame retardant and an organic binder for binding these materials, are mixed together and hot press formed to give a wood based panel.The resultant panel has a wood like texture, is light weight, has excellent sound absorption properties, and is semi-incombustible, and has a good insulating property for use as a wall or ceiling material.
    Type: Grant
    Filed: October 15, 1996
    Date of Patent: January 6, 1998
    Assignee: Yamaha Corporation
    Inventors: Ritsuo Iwata, Hirotoshi Takahashi, Satoshi Suzuki, Shiro Hanao
  • Patent number: 5695580
    Abstract: A method of making integrally a composite material comprises a first fiber cloth, which is impregnated with a foaming agent before being joined with a second fiber cloth. The combination of the first fiber cloth and the second fiber cloth is treated in a heating device in which the composite material is formed integrally of the first fiber cloth, the second fiber cloth and foam layers formed by the foaming agent of the first fiber cloth and some of the foaming agent that have permeated into the second fiber cloth from the first fiber cloth. The composite material is provided with an excellent air permeability and a heat insulating capability.
    Type: Grant
    Filed: September 21, 1995
    Date of Patent: December 9, 1997
    Inventor: Hermes Huarng
  • Patent number: 5683527
    Abstract: A foamable, curable organosiloxane composition comprising an alkenyl-functional polyorganosiloxane, an organohydrogensiloxane, a blowing agent, a platinum catalyst and an adhesion promoter comprising an epoxy-functional compound, a hydroxyl-functional compound, a tetraalkylorthosilicate, an organotitanate and an aluminum or zirconium compound.
    Type: Grant
    Filed: December 30, 1996
    Date of Patent: November 4, 1997
    Assignee: Dow Corning Corporation
    Inventors: Gloria Lynne Angell, Michael Andrew Lutz
  • Patent number: 5683796
    Abstract: A headliner assembly for lining a passenger compartment ceiling of a motor vehicle comprising a headliner cover having an exterior surface presenting a major exterior appearance of the headliner assembly and an opposite interior surface, and a body of foamed material adhered to the opposite interior surface of the headliner cover and having central portions thereof with a greater thickness than peripheral portions thereof, the body of foamed material being of generally constant density throughout its extent including the central and peripheral portions thereof.
    Type: Grant
    Filed: October 5, 1995
    Date of Patent: November 4, 1997
    Assignee: Atoma International Inc.
    Inventors: Walter P. Kornylo, Kelly M. Houf, Janusz P. Gorowicz
  • Patent number: 5676786
    Abstract: A resin molding and a method for producing the molding in which a skin material having a first solid surface layer produced by slush-molding a pulverized mixture of a polypropylene resin and a styrene series thermoplastic elastomer which are then laminated onto a surface of a resinous core by integral molding. The skin material also has at least two additional layers, i.e., a foamed middle layer and a solid inner layer.
    Type: Grant
    Filed: October 27, 1995
    Date of Patent: October 14, 1997
    Assignee: Mitsuboshi Belting Ltd.
    Inventors: Kosuke Mizuno, Itsuki Sakai, Kenzo Tanaka, Koji Hayashi
  • Patent number: 5666780
    Abstract: A loose-fill insulation product is provided which includes a dry mixture of loose-fill fiberglass and an inorganic adhesive in the form of a redispersible powder. During application, the dry loose-fill mixture is coated with a liquid (e.g. water) so as to activate the adhesive. Thereafter, the loose-fill mixture with activated adhesive is blown or sprayed into a cavity (open or closed) so as to insulate same.
    Type: Grant
    Filed: January 22, 1996
    Date of Patent: September 16, 1997
    Assignee: Guardian Industries Corp.
    Inventors: Gary E. Romes, Mark H. Vagedes, Joseph T. Church, Charles Chenoweth