Abstract: Methods of making a foamed article include: (a) milling a block or sheet of thermoplastic polymer to form a precursor; (b) crosslinking the thermoplastic polymer; (c) heating the precursor to a first temperature to soften the thermoplastic polymer; (d) infusing the thermoplastic polymer with at least one inert gas at a first pressure that is sufficient to cause the at least one inert gas to permeate into the softened thermoplastic polymer; and (e) while the thermoplastic polymer is softened, reducing the pressure to a second pressure below the first pressure to at least partially foam the precursor into a foamed article, wherein the foamed article is substantially the same shape as the precursor.

Abstract: Methods of creating additive manufactured parts include providing a first composition in a vat, where the first composition is a liquid with a first viscosity. A build platform is placed adjacent to and submerged under a top surface of the first composition. A second composition is dispensed on the top surface, the second composition having a second viscosity and being dispensed in a shape area according to a part to be created. The top surface is illuminated to expose the first composition and second composition to light having a polymerization wavelength, thereby causing polymerization of at least one of the first composition or second composition. In some embodiments, the first composition is a base resin that is absent of a photoinitiator, and the second composition is a photoinitiator solution. The photoinitiator solution may have a second viscosity that is less than the first viscosity of the base resin.

Abstract: A door made of polyurethane, including a door body, the door body including a plurality of integrated plates stacked on one another for supporting. A method for preparing the door includes providing a mold, and spraying a parting agent inside the mold; heating the mold to a temperature of 30-70° C., spraying the parting agent, and placing a plurality of plates or a metal skeleton in the mold; mixing raw materials to obtain a mixture; injecting the mixture into the mold to cover the stacked plates, and curing for 30-90 min; demolding, transferring a product from the mold to a thermostatic chamber for shaping at a constant temperature; trimming uneven edges and surfaces of the product; and spraying a paint on the product.

Abstract: The present invention relates to a porous manganese oxide-based lithium absorbent and a method for preparing the same. The method includes the steps of preparing a mixture by mixing a reactant for the synthesis of a lithium-manganese oxide precursor powder with an inorganic binder, molding the mixture, preparing a porous lithium-manganese oxide precursor molded body by heat-treating the molded mixture, and acid-treating the porous lithium-manganese oxide precursor molded body such that lithium ions of the porous lithium-manganese oxide precursor are exchanged with hydrogen ions, wherein pores are formed in the lithium-manganese oxide precursor molded body by gas generated in the heat treatment. The porous manganese oxide-based lithium adsorbent according to the present invention is easy to handle and has many more adsorption reaction sites compared to existing molded adsorbents, thus providing high lithium adsorption efficiency.

Abstract: A method of making garment material, the method having the steps: applying coagulant (34) to a substrate (32); applying a foam (38) of the polymeric material to the substrate (32); allowing the coagulant (34) to coagulate some of the foam (38); and removing uncoagulated foam (38) from the substrate (32) to leave a layer of coagulated polymeric material on the substrate (32).

Abstract: A molded discrete low stress gasket is constructed of restructured filled PTFE for use in corrosive or severe chemical environments under relatively low bolt loads. The gasket has a gasket surface and includes a raised outer sealing ring and a raised inner sealing ring. The gasket may constructed from a restructured filled PTFE material, with the sealing rings deforming at lower pressures than the remaining portions of the gasket.

Abstract: The invention relates to a novel, innovative industrial method for producing polystyrene (EPS) foam parts of arbitrary length and having a constant cross-section, with mixed densities located in accordance with the mechanical and thermal properties required for each application. The invention also relates to a machine (apparatus) for producing said solid parts having localized densities defined by the mechanical and thermal requirements of the application. The aforementioned products are produced by joined both longitudinally and transversely. The invention can be used to reduce the standard method to three steps, thereby resulting in a significant saving in terms of production. Moreover, unlike with the standard method, variants can be produced using the above-mentioned method, thereby increasing the range of application said type of products.

Abstract: This invention provides a plastic container characterized in that an expanded layer comprising expanded cells having a flat shape with an average major axis of not more than 400 ?m and an average aspect ratio (L/t) of not less than 6 as viewed in cross section of the container wall along the maximum stretch direction, which are oriented in the stretch direction and are distributed so as to be superimposed on top of each other in the thickness-wise direction, is formed within the container wall. In this container, expanded cells having a flat shape are distributed so as to orient in a given direction and, thus, has light shielding properties and has a pearl-like appearance, that is, has a very high commercial value. Further, since any colorant is not contained, the suitability for recycling is excellent.

Abstract: For a skin, a non-formed polyurethane resin layer at the surface side and a foamed polyurethane resin layer between the non-foamed polyurethane resin layer and a base member are configured to form an integral and uniform layer over and extent from an injection point to a distant point on a surface of the base member, so that an integral skin foam in which such skin layer and foamed layer are laminated can be molded, under an atmospheric pressure, in a single process, allowing for manufacture of a laminate article with a high degree of uniformity over an appreciable wide range of the article, as well as for provision of a laminate mold goods having the skin and foamed layers formed with a high uniformity along the base member, over the length in a flow direction of skin forming material.

Abstract: A process for the preparation of thermoplastic auxetic foams comprising the steps of: a) taking conventional thermoplastic foam; b) subjecting said foam to at least one process cycle wherein the foam is biaxially compressed and heated; c) optionally subjecting the foam to at least one process cycle wherein the biaxial compression is removed and the foam mechanically agitated prior to reapplying biaxial compression and heating; d) cooling said foam to a temperature below the softening temperature of said foam; and e) removing said compression and heat.

Abstract: It is an object of the present invention to provide a panel capable of obtaining sufficient strength, weight reduction and sound absorbing performance. A space is formed by an inner thin plate fixed to the inner surface of an outer thin plate, and a foam material is filled in the space. The foam material is preferably a highly foamable rubber sound absorbing material. In the inner thin plate, a perimetrical side part and perimetrical edge part for forming the space, and a concave part for enhancing the strength of the panel are drawn to the side of the outer thin plate. The bottom faces of the perimetrical edge part and concave part of the inner thin plate are bonded to the outer thin plate using a thermosetting adhesive.

Abstract: A method for producing back-foamed air-permeable textile products, whereas, instead of providing a film or the like to prevent the penetration of reaction products or foam to the visible face, the pressure created during the reaction is intentionally decreased so that none of the reaction products nor the foam created by the reaction of the reaction products is able to penetrate the textile product. With a product manufactured in this way, the climatic comfort is improved and a better acoustic effect can be achieved. The disclosure also relates to a device which is suitable for carrying out the method and to a corresponding back-foamed air-permeable textile product.

Abstract: A method of producing a sound insulation molding with mass and spring, wherein both mass and spring are produced on the basis of the same material, in particular polyurethane. For the formation of a mass, reaction substances and fillers are brought into a mold, in particular sprayed in or injected, and brought to reaction. The spraying in or injection is thereby controlled such that the reaction substances and the fillers are supplied in locally different quantity and/or composition into the mold, dependent upon the sound damping to be locally achieved together with the spring, which is then formed on the so-formed mass in the same mold through formation of foam. Through this, with surfaces to be sound insulated which are of the same geometry, three-dimensional moldings of the same geometry can be produced with both different acoustic and also mechanical behavior in predetermined series.

Abstract: Methods and tools for assembling an article are provided. The method includes providing a mold having a cavity configured as a desired shape, positioning a base within the mold so that a surface of the base material is exposed, applying a coating material, e.g., urethane or polyurethane, to substantially cover both the exposed surface of the base and an inner surface of the cavity, depositing a cushion material into the cavity and sealing the cavity with the exposed surface of the base so that the coating material forms a skin around the cushion material and adheres the cushion material to the base.

Abstract: A moulding machine (10) comprises a moulding station (20). The moulding station (20) comprises a support (70) and an insulated enclosure (30). The insulated enclosure (30) has an open able aperture (40). The moulding station (20) is controllable such that the support (70) can rotate the insulated enclosure (30) between a filling position where the open able aperture (40) is upwardly open and an emptying position where the open able aperture (40) is downwardly open. A mould (50) is placed completely within the insulated enclosure (30). The mould (50) includes an open able entrance. The insulated enclosure (30) includes a heat source (80) for heating the external surfaces of the mould. In use, a first powdered plastic to form a shell of the moulding is formed into an outer skin coated on the internal surfaces of the mould. A second material is then formed into an inner skin on the inside surfaces of the outer skin. The moulding is then heated to cause the inner skin to form an expanded core.

Abstract: An injection moulding process for making a completely recyclable, multilayered article which contains: i) a rigid layer formed of a thermoplastic polymer and ii) a foamed skin layer formed of a thermoplastic polymer compatible with the material of the rigid layer, by injection moulding of the rigid layer into a mould composed of two sides, lifting one side of the mould, or change one side of the mould to obtain a small gap of between 3 to 4 mm between the rigid layer and the side of the mould lifted or changed and injecting the foamed skin layer into the gap formed in step b).

Abstract: The instant invention relates to a method for changing characteristics of a plastic component, wherein a medium is introduced into the plastic component, which encompasses a porosity and wherein the medium forms a homogenous compound with the plastic component by at least partially dissolving the plastic component.

Abstract: A filmic label including a face material having a front side, a reverse side and an adhesive layer including pressure sensitive adhesive on the reverse side of the face material. The face material includes at least one surface layer on at least one side of at least one central layer. The at least one central layer includes cavities that have been initiated at initiation sites by stretching the face material in a longitudinal direction and in a cross direction. The cavities have been expanded in a thickness direction of the face material by allowing a gaseous substance to have an effect on the at least one central layer. Also a method for forming a plastic film for a filmic label.

Abstract: The present invention provides a method for producing polylactic acid-based resin foamed particles for in-mold foam-molding from which a polylactic acid-based resin foam-molded article excellent in heat resistance and mechanical strength can be obtained by in-mold foam-molding. In the method of the present invention for producing polylactic acid-based resin foamed particles for in-mold foam-molding, a rotary blade is rotated at a given rotation speed while being always in contact with the front end surface of a nozzle and a polylactic acid-based resin extrudate extrusion-foamed through a nozzle is cut with the rotary blade, so that it is possible to cut the polylactic acid-based resin extrudate surely to obtain substantially spherical polylactic acid-based resin foamed particles.

Abstract: A method of producing a polyurethane foam sheet, and a laminated sheet that uses such a foam sheet, that can be applied to artificial leather, synthetic leather, and cushioning materials used in all manner of applications. A polyurethane foam sheet is produced by applying a liquid mixture, obtained by mixing together a heated and melted hot melt urethane prepolymer (A) containing isocyanate groups at molecular terminals, and a compound (B) containing at least 2 active hydrogen atom-containing groups, onto a substrate in a sheet-like manner, and then water foaming the liquid mixture by bringing the sheet-like liquid mixture into contact with water vapor or moisture (water). A laminated sheet is produced by bonding a third substrate to the polyurethane foam sheet.

Abstract: The present invention aims at providing a composite semipermeable membrane in which water permeability and salt-blocking rate cannot deteriorate by long-term storage, and at providing a process for producing the same. The present invention relates to a composite semipermeable membrane having a skin layer formed on the surface of a porous support, the skin layer including a polyamide resin obtained by interfacial polymerization of a polyfunctional amine component and a polyfunctional acid halide component, wherein the porous support contains at least one kind of additives selected from the group consisting of antioxidants, antibacterial agents, antifungal agents, and moisturizers, in an amount of 95% by weight or more with respect to the whole composite semipermeable membrane.

Abstract: Disclosed is a resin molded article characterized by comprising a resin base as a hard foamed body composed of a thermosetting resin, a resin film composed of a thermoplastic resin, and a skin layer formed therebetween, wherein the skin layer is composed of the same thermosetting resin as that of the resin base and has a density larger than that of the resin base. Consequently, the strength of the surface of a resin base acting as an interface with a superficial layer of the resin molded article or the strength of a portion including the surface is increased, thereby suppressing deformation of the surface of the molded article and improving moldability as a resin molded article.

Abstract: The present invention relates to a process for producing ROHACELL® foams with a compacted surface. Markedly less adhesive then has to be applied during lamination and the good mechanical properties of the ROHACELL® foams are retained. The invention further permits the use of ROHACELL® foams as a removable core.

Abstract: An extruded, low density, ethylenic polymer foam including from about 86% by volume to about 98% by volume open cells and a continuous, impervious surface skin is disclosed. The foam possesses superior compression recovery and lower compression resistance when compared with similarly comprised ethylenic closed cell foams and superior moisture resistance and handling characteristics when compared to open cell foams. A precursor composition and method for making the extruded, low density, ethylenic polymer foam are also disclosed.

Abstract: Process for continuous manufacture of latex foam rest articles such as mattresses, cushions and the like comprising a part able to participate to the manufacture steps and to remain embedded in the article with consequent improvements of final performances. A flexible perforated band, preferably a flat polymeric material net with longitudinal and cross reinforcement members, is placed over a foam laying surface provided with protuberances and in continuous advancement between a foam laying station and an unlimited length article extraction station. The latex foam passes through net holes forming an upper portion and a lower portion relative to said net. The net continuously opposes contraction forces and weight force exerted from upper portion on lower portion. The unlimited length article is subjected to successive cross cuts originating rest articles wherein a foam embedded net is arranged on ends of recesses originated by the protuberances.

Abstract: The invention is directed to a molded foam sports board made by steps: molding a foam core having a molded contour surface; laminating an extruded adhesive resin layer to a polyolefin foam sheet layer forming a film foam laminate; and thermoforming and heat laminating the film foam laminate to the molded foam core by pressing the molded foam core towards the film side of the film foam laminate and mating against the profile of a thermoforming bottom die surface. The board has a thermoformed polyolefin foam skin having an outer surface and an inner surface, a molded foam core having a molded contour surface, an extruded adhesive resin layer bonding the inner surface of polyolefin foam skin layer to the molded contour surface of the molded foam core. The molded foam core may comprise homopolymer or copolymer of expanded polystyrene foam, expanded polyethylene foam, expanded polypropylene foam and polyurethane foam.

Abstract: A method of manufacturing a composite panel is described. The method includes pre-stabilizing a honeycomb core with at least one layer of a pre-stabilizing material, surrounding the honeycomb core with at least one composite laminate skin layer, and curing the at least one composite laminate skin layer.

Abstract: A device is provided which is suitable for delivering at least one nanoparticle(s) to a subject. The device can be used to deliver a variety of nanoparticles, for example, therapeutic agents, directly through the outer layers of the skin without passing completely through the epidermis of the subject. Thus the device can be used to deliver therapeutic agents to a predetermined depth and avoid disturbing the pain receptors in the skin. Thus the device can be used to deliver agents, including therapeutic agents, in a non-invasive manner. A method of fabricating devices with associated nanoparticles is also provided.

Abstract: The present invention provides a manufacturing method of a cross-linked foam, comprises processing foaming material for a foam body to have a certain shape with a cross-linked foaming suppressed and processing at least one foaming material for an outer skin to have a shape of a thin film with a cross-linked foaming suppressed, the foaming material for the outer skin including a pigment; disposing the foaming material for the outer skin and the foaming material for the foam body in a molding die, the foaming material for the outer skin disposed in an inner cavity of the molding die and then the foaming material for the foam body disposed on the foaming material for the outer skin for the foaming material for the outer skin to cover a surface of the foaming material for the foam body; and cross-linked foaming the disposed foaming material for the foam body and the outer skin, whereby an united foam covered with the outer skin having a wide variety of colors can be manufactured even without an additional attachm

Abstract: A porous sheet is provided suitable for use as a substitute for natural leather for shoes, clothes, and a fiber composite sheet. The porous sheet is formed of an elastic polymer, has a thickness of 10 to 500 ?m, and has 500 to 15,000 fine pores mm2 inside, the fine pores having an average pore diameter of 1 to 20 ?m, and which has a breaking strength of 1 to 15 N/mm2 and a breaking elongation of 100 to 500%. A fiber composite sheet is also provided, wherein the porous sheet is laminated on a substrate made of a fiber aggregate as a main component.

Abstract: A process and apparatus for creating an acoustically absorbent porous panel comprises the steps of dispensing cement and fibers with a dry mixer to create a dry mix and aqueous mixing water, surfactant and air with an aqueous mixer to create a foam. The process and apparatus provides for combining and mixing the foam and dry mix in a combining mixer to form a foamed cementitious material comprising on a wet basis about 53% to about 68% by weight cement, about 17% to about 48% by weight water, about 0.05% to about 5% by weight fibers, and about 0.01% to about 10% by weight surfactant. The foamed cementitious material is then dried or cured in a drying chamber. The dried foamed cementitious material may then textured with an embossing roller. The cementitious material provides good acoustical performance with enhanced durability and moisture resistance.

Abstract: A method and apparatus for making a densified skin polymer foam plank comprising providing a polymer foam having a plurality of cells and heating an outer surface of the foam at a heating station. The heating step collapses and melts the cells adjacent the outer surface to form the densified skin having a density greater than a density of the foam before the heating step. Additionally, the method and apparatus may further include extruding the polymer foam from an extruder.

Abstract: A monolayer foamed corrugated sleeve for protecting elongate substrates is disclosed. The sleeve is extruded from a polymer and a foaming agent. The polymer may be a non-elastomeric thermoplastic, a thermoplastic elastomer or a combination of the two. The sleeve is extruded from a nozzle having a cross sectional area which decreases along its length to maintain pressure on the extrudate and prevent premature foaming. The extrudate is released from the nozzle into moving mold blocks. A blow rod within the mold blocks provides gas pressure to force the extrudate against the blocks. An obturation device is mounted on the blow rod to control the gas pressure.

Abstract: The invention thus provides a method of making a foam-filled composite matrix having a cellular core, and the composite matrix of the method, e.g. for use as sacrificial energy absorbing structures particularly for the passenger compartments of vehicles, e.g. motor vehicles. Thus the structures may be used in head linings in automobiles and as linings and even seats in vehicles such as aircraft. Additionally the structures may form crash padding in crash helmets and body armour.

Abstract: Advanced structural components comprising a foamed thermoplastic that can be used in virtually any application where wooden components have a use. Such structural components can comprise sized lumber, shaped trim, posts, beams or shaped structural members. An advanced profile composite structural component comprising an exterior capping layer with an interior comprising a foamed thermoplastic can be used in the assembly of fenestration units adapted to residential and commercial structures. Preferably the profile structural component can be used in a window or door assembly. The profile member is adapted for ease of construction of the fenestration units, can be easily installed in a rough opening to framing members, and can be trimmed and adjusted on site. The profile is structurally strong, thermally stable, shrink resistant and will accept and retain the insertion of fasteners such as staples, nails and screws permanently with substantial retention and little or no damage to the units.

Abstract: A tube for wiring harnesses consists of a cylindrical body for passage therethrough of a terminal-attached cable branched from a wiring harness, the cylindrical body being made of a foamed flexible sheet having a multiplicity of minute bubbles; and a cover means which smoothens an inner circumferential surface of the cylindrical body along which the terminal-attached cable slides when passing through the cylindrical body. A smooth sliding advancement of the terminal-attached cable through the tube is attained.

Abstract: The melt of polyvinyl aromatic polymers comprising from 10 to 45 weight % of star branched polymer prepared using a combination of thermal and tetra functional peroxide initiation has an improved melt strength permitting better foam formation for extrusion foam blown with conventional blowing agents and inert gases including CO2.

Abstract: A novel construction board composition is disclosed comprising a unique combination of synthetic binders selected for their ability to establish a strengthened permanent bond in the final dry state for use in a construction board composition comprising primarily gypsum, and in a construction board composition comprising an expanded mineral such as Perlite which largely reduces the amount of gypsum over current gypsum construction board formulations, thus reducing the weight while maintaining the strength of the construction board structure. In a preferred embodiment, the lightweight, strengthened gypsum construction board of the present invention also comprises an optional covering veneer that is applied to provide increased strength, moisture resistance, and fire retardency, and the back paper top ply is treated to provide increased flexural strength.