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8173717 |
Silicone foams, process to make them and applications thereof
Closed cell silicone foams are formed by subjecting a silicone base to an inert gas at an elevated pressure, preferably after a pre-curing step, reducing the pressure to allow the base to expand to...
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8168096 |
Process for producing polystyrene foam particles having a high density
A process for producing polystyrene foam particles having a bulk density in the range from 40 to 400 g/l by extrusion of a polystyrene melt comprising carbon dioxide and/or water as blowing agent...
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8137600 |
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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8092626 |
Foaming methods for making cellular thermoplastic materials
Methods for reducing the density of thermoplastic materials and the articles made therefrom having similar or improved mechanical properties to the solid or noncellular material. Also disclosed are...
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8088835 |
Method for producing expansion-molded polypropylene-based resin article
It is an object of the present invention to provide a method for easily and economically producing an expansion-molded polypropylene-based resin article stably with a high porosity, that has...
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8080194 |
Methods and pressure vessels for solid-state microcellular processing of thermoplastic rolls or sheets
Disclosed herein are methods and pressure vessels for solid-state microcellular processing of thermoplastic rolls and sheets. In one embodiment, the present invention is directed to a method for...
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8071175 |
Method of fabricating a foam play article
A foam play article comprises: an elastic tube for forming an elastic rubber layer; a foam formed by foaming polyurethane materials (2) in the elastic tube (1); and a coating layer (7) coated on...
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8063177 |
Pre-expanded polypropylene resin particle, and method for production thereof
A pre-expanded polypropylene resin particle can be produced in the following manner: a polypropylene resin particle produced by an under water cut method, water, a dispersing agent, and a foaming...
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8062564 |
Method of producing a plate-shaped structure, in particular, from silicon, use of said method and plate-shaped structure thus produced, in particular from silicon
Method for fabricating a structure in the form of a plate, and structure in the form of a plate, in particular formed from silicon, including at least one substrate, a superstrate and at least one...
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8048349 |
Method for the preparation of foamed and crosslinked rubber
The method of the present invention is adapted to foam and crosslink a raw material including a rubber, a crosslinking agent and a foaming agent. The method includes the following steps: (1) a...
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8048347 |
Method of manufacture of a foamed core class “A” article
The method of manufacturing an article having a surface, a skin, and a core includes closing a first mold portion on a compressible seal. The seal is disposed between the first and second mold...
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8034266 |
Carbon foam from metallic salts of lignosulfonates
A process for the production of an open-cell carbon foam from a metallic salt of a lignosulfonate is described. The process includes heating the metallic salt of a lignosulfonate from ambient...
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7993554 |
Method for the manufacture of a molding composition
A method for the manufacture of a molding composition from a raw material melt which is charged with an additive includes the steps: charging a conveyor apparatus with a raw material which includes...
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7985468 |
Foam ear plug or earpiece utilizing recycled pulverized polyurethane foam
An earpiece of flexible foam construction which incorporates recycled pulverized polyurethane foam (RPPF). RPPF constituting 5% to 30% of the improved foam has been found to be useful. The novel...
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7947755 |
Polyurethane foam and method of manufacturing the same
The invention provides a polyurethane foam manufactured from a polyisocyanate and a polycarbonate polyol. Moreover, the invention provides a method of manufacturing the polyurethane foam...
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7914718 |
Gas pore former in cellular monoliths
Porous ceramic articles may be produced by using a gas as a pore former, where the gas is injected into a ceramic precursor batch material and mixed. Pressure is then applied to mixture such that...
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7897076 |
Method to produce conductive transfer roller, transfer roller, and image forming apparatus having the same
A method to produce a conductive transfer roller, and the transfer roller. The method to produce the conductive transfer roller includes adding and mixing a conductive substance, an ionic...
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7862846 |
Food product which artificially has been given a cell-like structure by coextrusion of several components, and method and apparatus for manufacturing such food product
Two or more different materials such as food material are co-extruded through adjacent orifices of an extruder. The flows of the two materials are cut in a direction transverse to the flow to form...
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7862316 |
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 the...
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7850883 |
Apparatus and method for injection moulding with ventilation means
An apparatus for injection molding products from a mass including at least natural mono or polymers, provided with at least one mold cavity (2) and a deaeration channel (10) at least partly...
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7842206 |
Process and plant for continuous manufacture of resting articles of latex foam
Process for continuous manufacture of an unlimited length latex foam block including at least two layers to form after successive cross cuts resting articles such as mattresses, cushions and parts...
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7789550 |
Method of combining materials
A method for combining materials (such as impregnating materials with functional materials) uses a combination of supercritical fluid technology and polymer melt processing technology. The...
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7790255 |
Foamed-wall container having a silvery appearance
A container comprises a micro cellular foamed polymer, and a non-reactive gas contained within the micro cellular foam cells, wherein the container has a silvery appearance. The process for making...
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7786181 |
Chemical composition and process
The invention relates to a solid powdery composition comprising unexpanded thermally expandable microspheres including a thermoplastic polymer shell encapsulating a propellant and from about 0.1 to...
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7776244 |
Method for producing expandable polystyrene
A process for the preparation of expandable styrene polymers having a molecular weight Mw of greater than 170,000 g/mol, which comprises conveying a blowing agent-containing styrene polymer melt...
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7704423 |
Method for expansion injection molding
An injection-foaming molding process for manufacturing a formed article by injecting a molten resin containing a foaming agent into a cavity of a mold being retained in an openable state and then...
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7695183 |
Static mixer apparatus for impregnating a polymer melt with a fluid expanding agent or additive
The apparatus is provided for impregnating a melt of polymer with a fluid working medium, such as, an expanding agent or an additive. Impregnation is carried out for the purpose of manufacturing...
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7645809 |
Process and apparatus for the optimized production of foam in a continuous block slabstock process
The invention relates to a plant and a process for the production of foam in a continuous slabstock process in which the actual foam height profile is detected transversely to the feed direction...
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7604761 |
Process and plant for continuous manufacture of latex foam articles
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...
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7588704 |
Online control of blowing agent content of polymer beads for making lost foam patterns
The invention involves the real-time, NIR-spectroscopic, closed-loop control of the blowing agent content of polymer beads used to make lost foam casting patterns.
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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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7556756 |
Production method of polyurethane foam molded article
The present invention provides a method for producing a polyurethane foam molded article from a polyisocyanate compound, a polyol mixture containing polyol, a catalyst and a crosslinking agent, and...
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7540985 |
Method of producing a polyurethane foam molded article
A method of producing a polyurethane molded article is provided, in which one molding machine which can provide distinctly polyisocyanate component(s) and two kinds of polyol components is used,...
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7531116 |
Process of producing foamed molding from expanded polypropylene resin beads
A process of producing a foamed molding, wherein expanded, substantially non-crosslinked polypropylene-based resin beads are heated in a mold to fuse-bond the beads together into a unitary body....
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7511082 |
Polyurethane foam and method of manufacturing the same
The invention provides a polyurethane foam manufactured from a polyisocyanate and a polycarbonate polyol. Moreover, the invention provides a method of manufacturing the polyurethane foam...
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7459109 |
Method for manufacturing foam pads
A method for manufacturing foam pads includes a first step of preparing a proper amount of PVC power, DOP curing agent, light calcium carbonate, kaolin, foaming agent and pigment and pouring them...
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7452585 |
Monolithic structures, methods of manufacture and composite structures
An article of manufacture comprising a sag-resistant nucleus-forming monolithic composite capable of being located within a hollow interior portion of a structural material and being expanded...
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7445736 |
Embossed indicia on foam core imaging media
This invention provides method for placing indicia on a support for an imaging element comprising embossing indicia, such as a logo, on a roller; providing a support wherein said support comprises...
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7438840 |
Method for introducing an additive into a flowing medium stream
The method for introducing an additive into a flowing stream of media pulses discrete quantities of the additive into the stream at a pressure higher than the pressure of the stream and at set time...
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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 CO2 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 wood-plastic...
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7396497 |
Method of forming a polishing pad having reduced striations
The present invention provides a method of forming a chemical mechanical polishing pad, comprising providing a tank with polymeric materials and providing a storage hopper with microspheres having...
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7390445 |
Method of producing composite sheet having polyolefin foam layer
A method of producing a composite sheet having a foam layer of a first polyolefin-based resin and a surface layer of a second polyolefin-based resin provided on at least one side of the foam layer...
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7351363 |
Press for hard foam plates
A press for rigid foam sheets with continuous adjustment of the spacing between the two press plates (1,3), in particular for sandwich panels with an upper and lower outer layer and, located...
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7341683 |
Method of manufacturing foamed polyethylene films and related products
The present invention solves the problems left unaddressed by the prior known processes by providing a method to produce foamed-thermoplastic films of sufficient strength for use in consumer...
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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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7303706 |
Device for producing expanded plastic moulded parts in an injection moulding process, using compressed physical expansion fluids
The manufacture of foamed polymer trim parts making use of physical blowing agents requires the diffusion and sorption of the blowing agent in the polymer melt. Said diffusion and sorption are...
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7303704 |
Method of manufacturing lightweight ceramics
The present invention discloses a method of manufacturing lightweight ceramics by mixing several raw materials such as a powdered glass material, a powdered alkali silicate, and a water-soluble...
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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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7285233 |
Method of manufacturing polishing pad
A method of manufacturing a polishing pad is described. A mold having a mold cavity therein is provided. At least a strip is buried in the mold. A polymer foam material is injected into the mold...
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