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7625514 |
Method for modifying polymer surface and method for producing polymer product
A method for modifying a surface of a polymer such as a thermoplastic resin is provided, in which a supercritical fluid, especially carbon dioxide in a supercritical state is used as a solvent, and...
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7615170 |
Method of processing polymers using a single screw
Injection molding and blow molding systems that include screws having low L:D ratios are provided. The systems are capable of producing microcellular polymeric materials. In some cases, the systems...
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7585439 |
Manufacture of fully recyclable foamed polymer from recycled material
A solid state foaming process permits the use of up to 100% recycled pre- and post-consumer polymer for the manufacture of foamed polymer material and thermoformed foamed polymer articles. The...
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7455799 |
Method of producing polishing pad-use polyurethane foam and polyurethane foam
A production method comprising the step of charging prepolymer, a foaming agent and an active hydrogen-containing compound in specified amounts into a tank and foaming/mixing them for a specified...
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7435365 |
Method of fabricating hollow foamed-rubber member
A method of making a hollow foaming member is to utilize the foaming agents with various decomposition speeds or gas issued into the rubber sheet in the die while vulcanization and foaming. As a...
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7431872 |
Low-density cellular wood plastic composite and process for formation
A low-pressure CO 2 tank or an air compressor with a refrigerated air dryer is attached to the vent zone of a standard twin-screw extruder. During extrusion, the gas is dissolved in the...
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7404917 |
Method and system for generating foam for the manufacture of gypsum products
A method for generating foam for gypsum product manufacturing includes injecting water through a conduit and injecting a foaming agent through the conduit to form a first solution comprising the...
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7390444 |
Carbon dioxide sequestration in foamed controlled low strength materials
A process for sequestering carbon dioxide from the flue gas emitted from a combustion chamber is disclosed. In the process, a foam including a foaming agent and the flue gas is formed, and the foam...
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7364677 |
In-mold decorated articles and methods
The invention provides in-mold decorated articles and methods to form the articles. The in-mold decorated articles include a polymeric portion having a substrate material adhered to a surface of...
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7361294 |
Injection molding of polymeric material
Injection molding systems and methods useful for making microcellular foamed materials are provided as well as microcellular articles. Pressure drop rate and shear rate are important features in...
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7338980 |
Method and apparatus for mixing a high-viscosity material into a gas
A piston pump has a piston and cylinder. A gas is supplied into the cylinder during and/or after a suction stroke of the piston pump, and a high-viscosity material is supplied into the cylinder...
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7332114 |
Process for manufacturing sound absorbing cement tile
A continuous process for manufacturing a sound absorbing tile made from a slurry including, quick setting cement, water, fibers and foaming agent, the process including the steps of (i) mixing...
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7329374 |
Method for manufacturing resing films
A method for manufacturing resin films includes steps of mixing PU resin and hydroxyl compound to become a first-kind first-phase mixture, and of mixing a pigment with a foaming agent to become a...
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7306754 |
Membrane and the use thereof
The invention relates to a membrane that consists of a polymer or a polymer mixture. The aim of the invention is to produce membranes, especially planar membranes or hollow fiber membranes that...
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7300616 |
Method and apparatus for forming an article of manufacture and an article of manufacture made by a new and novel process
A method 10 to selectively produce an article of manufacture 20 having desirable properties and which may replace many “ceramic based” articles. Particularly, the article of manufacture 20...
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7300612 |
Hollow strandfoam and preparation thereof
Prepare a foam structure that includes hollow coalesced foam strands and, optionally, solid coalesced foam strands using an extrusion die block equipped with apertures that promote forming the...
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7294295 |
Method of manufacturing molded product of foamed resin and apparatus for molding foamed resin
While steam is supplied to flow channels to heat inner cavity surfaces to a temperature equal to or higher than the heat distortion temperature of a molding resin, the resin mixed with a...
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7282554 |
Low molecular weight polyphenylene ether
A low molecular weight polyphenylene ether having a reduced viscosity of 0.04 to 0.18 dl/g as measured at 30° C. in a 0.5 g/dl chloroform solution, and a molecular weight distribution of 1.5 to...
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7276191 |
Crosslinked foam which has inner-cavity structure, and process of forming thereof
A method and device for forming a cross-linked foam and a cross-linked foam are provided. The method includes the steps of preparing at least one foaming material for cross-linked foaming, the...
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7264757 |
Controllable microscopic bubble nucleation in fluid polymer material production method and its apparatus
A controllable microscopic bubble nucleation in fluid polymer material production method and apparatus utilizing a gas pipe disposed in the conveyance screw shaft of an injection or extraction...
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7244380 |
Process for producing polystyrene resin foam by extrusion
A process for an extruded resin foam, comprising extruding a foamable composition comprising a melted polystyrene resin and a physical blowing agent through a die to obtain a polystyrene resin foam...
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7229579 |
Method of manufacturing a sponge device
A method of making a sponge device is provided. This method includes introducing a curable liquid sponge forming material into a form, placing a handle into the material before it is fully cured,...
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7229578 |
Light weight plastic trim parts and methods of making same
The present invention relates to light weight molded plastic articles and methods of making same. More specifically, the present invention relates to a method of manufacturing a hollow-core,...
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7220373 |
Process for lightening plasterboards
Process for the manufacture of plasterboards exhibiting a core density of less than 0.77 comprising the stages of the formation of a foam from water and a surfactant composed of at least one alkyl...
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7211207 |
Injection molding method with surface modification
A molded article includes thermoplastic resin, and an organic material different from the thermoplastic resin inside said molded article, the organic material being located on and near a surface of...
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7205377 |
Method for the preparation of a poly(arylene ether), and related compositions
A method for preparing a poly(arylene ether) with a reduced level of powder fines is described. In one embodiment, the method comprises oxidatively coupling a monohydric phenol in the presence of a...
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7169338 |
Foam-molded article and manufacturing method thereof
Provided is a method for manufacturing a foam-molded article by molding between molds a parison with a foam layer formed by extruding an expandable molten resin composition, obtained by...
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7166248 |
Reduced VOC emission alkenyl aromatic polymer foams and processes
A method for producing an alkenyl aromatic polymer foam structure that comprises melting at least one alkenyl aromatic polymer resin. An effective amount of blowing agent mixture is dissolved in...
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7166247 |
Foamed mechanical planarization pads made with supercritical fluid
Foamed thermoplastic polymeric mechanical planarization polishing pads (“MP pads”) made with supercritical fluids are presented. A supercritical fluid foaming agent is dissolved in a...
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7150615 |
Molding machine for injection foaming
A process for injection-foaming a thermoplastic resin by using an injection molding machine with a two-stage-compression screw, injecting a physical foaming agent into the cylinder of the machine...
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7144532 |
Blowing agent introduction systems and methods
The present invention provides blowing agent introduction systems and methods for introducing blowing agent into polymeric foam processing systems. The methods may involve introducing one or more...
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7138079 |
Methods for making foamed elastomer gels
Methods for making foamed elastomer gels are disclosed. Chemical foaming agents may be incorporated or gas may be injected into a molten gel and then using heating and cooling techniques and/or...
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7132023 |
Foaming method and device
The invention relates to a method and a device for foaming glue for the production of wood-based sheets. Gluing substance and gas are fed ( 1,2 ) into the foaming device through nozzles ( 3,4 ),...
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7118696 |
Method of forming light dispersing fiber and fiber formed thereby
Polymeric structures produced with a controlled number and distribution of small, closed cells. The polymeric structures are characterized by an opaque, whitening appearance attributed, at least in...
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7105112 |
Lightweight member for reinforcing, sealing or baffling
A lightweight member is provided for reinforcing, sealing or baffling structures of articles of manufacture such as automotive vehicles. The lightweight member preferably includes a carrier member...
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7105113 |
Method for flatproofing a tire and wheel assembly and resulting flatproofed assembly
A method is disclosed for flatproofing a tire and wheel assembly with a flexible, lightweight foam-fill by supplying at least two polyurethane reactive materials to a static mixer. The static mixer...
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7097438 |
Foaming agent charging and mixing device
A foaming agent charging and mixing device comprises at least one mixing device and one foaming agent metering device, wherein the foaming agent charging and mixing device may be arranged between...
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7087200 |
Controlled local/global and micro/macro-porous 3D plastic, polymer and ceramic/cement composite scaffold fabrication and applications thereof
An indirect solid free form scaffold manufacturing technique is provided. More particularly, the present invention provides a set of molds, casting methods, mold removals, and surface modification...
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7083403 |
Apparatus for supplying a resin material to an injection molding machine
An apparatus for supplying a resin material to an injection molder comprises a vessel for storing a resin material, gas supplying means for supplying an inert gas to the vessel which is not a...
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7077987 |
Foam injection molding method
Disclosed is a method for foam-injection molding a thermoplastic resin, comprising: (1) providing a mold comprising a fixed mold half and a movable mold half mating with the fixed mold half to...
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7070722 |
Foamable formulation and foam
A process for producing a sterile foam for medical or veterinary use is provided. A physiologically acceptable formulation for application to a body as a foam contains a foamable gelling agent. The...
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7045082 |
Production of foam webs from high-temperature-resistant polysulfones or polyether sulfones
The invention relates to a process for producing foam webs by foam extrusion of a mixture of a polysulfone or polyether sulfone and a volatile blowing agent, where the blowing agent is water or a...
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7014801 |
Polypropylene resin hollow molded foam article and a process for the production thereof
The present invention relates to a hollow molded foam article in which a plurality of polypropylene resins are used as the base resin, and to a process for the production of this hollow molded foam...
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7008576 |
Microporous ceramic materials and the producing method of the same
Microporous ceramic materials used in structural materials, high-temperature filters, electrode materials or preform materials for infiltration by homogeneously mixing and molding a ceramic...
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7008202 |
Method and apparatus for forming thermoplastic resin foam
The present invention relates to the step of plasticizing a thermoplastic resin material by rotatably driving a screw ( 20 ). Also included in the method is the step of injecting an inert gas into...
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7008578 |
Method for production of extruded, polystyrene-based resin foam plate and extruded foam plate obtained thereby
A method for production of an extruded, polystyrene-based foam plate wherein a polystyrene-based resin is heated and kneaded together with a blowing agent, a flame retardant and a nucleating agent...
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RE38993 |
Process for producing alkenyl aromatic foams using a combination of atmospheric and organic gases and foams produced thereby
There is disclosed a process for producing alkenyl aromatic foams utilizing a combination of atmospheric and organic gases as blowing agent, preferably using greater than 30% by weight of...
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7001549 |
Method for producing physically foamed injection moulded parts
A process for producing physically foamed injection molded articles is provided. The process involves feeding a propellant-free thermoplastic melt into a cavity followed by delivering a physical...
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6956067 |
Expanded polypropylene resin bead and process of producing same
Expanded, substantially non-crosslinked polypropylene resin beads capable of producing a high rigidity foamed molding at a relatively low temperature. The beads are produced by a process including...
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6949208 |
Injection molding process and injection molding apparatus for thermoplastic resin molded articles
An object of the invention is to provide an injection molding process for preparing thermoplastic resin molded articles and an injection molding apparatus for use in practicing this process, the...
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