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8162647 |
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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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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8087916 |
Holding jig for a foamable material
The invention provides a holding jig for supporting and fixing a solid material capable of being foamed by application of heat in a cavity of a hollow structure. The holding jig may be provided...
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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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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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7976298 |
Article, method and apparatus of forming expanded plastic materials in a steam chest mold
The invention provides an article, a method and an apparatus of forming expanded plastic materials in a steam chest mold having out of die draw features. This is achieved by means of a cavity pull...
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RE42424 |
Method and apparatus for extrusion of expanding water holding products such as foodstuff particles or feeding stuff pellets
In the extrusion of feed-stuff pellets and relevant consumer products, the extruded products are subject to expansion as a result of the boiling of their water content when the products, after...
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7942658 |
Systems for forming lightweight concrete block
A method and apparatus for efficiently forming individual building units is provided, generally includes providing a plurality of molds, each capable of simultaneously forming a plurality of...
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7906049 |
Method for filling a foam mixture in a cavity of a metal mold and an apparatus for molding a mold
A method for filling a foam mixture in a cavity of a metal mold, which can provide a mold without defects. This method for filling a foam mixture in a cavity of a horizontally-split metal mold by...
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7878785 |
Vented mold and method for producing molded article
The invention relates mold, particularly a mold for producing foam articles. In a preferred embodiment, the mold comprises a lid and a bowl releasingly engageable to define a mold cavity, the lid...
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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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7798797 |
Foaming die device for forming armrest
A foaming die device is provided, in which can be directly placed a basic armrest unit having a shaft element and a connecting bracket rotatably secured to the shaft element. The foaming die device...
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7766543 |
Method for controlling an expandable mixture
A method is disclosed that monitors and controls the condition of an expandable mixture before injecting it in a mold and that maintains the conditions for filling so as to make a casting mold...
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7731487 |
Mold for forming a hearing protective device
A mold for forming a foam earplug including a lower mold portion including a lower cavity; and an upper mold portion including an upper cavity and a means for venting a gas during a rising of the...
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7682141 |
Production apparatus for forming plastic molded articles
An apparatus and method for making plastic molded articles generally having a double-skinned configuration with a foamed interior extending between the two skins. Such an article can be produced...
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7641459 |
Foam cushion molding system and method
A molding system for foam-in-bag cushions comprises a mold defining a mold cavity, an air plenum separate from the mold cavity, a plurality of air passages that connect the mold cavity to the air...
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7628597 |
Labeled containers, methods and devices for making same
A device and method for producing labeled expanded resin containers; the method including applying a label sheet, formed from a label material capable of maintaining an electrostatic charge, to an...
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7614865 |
Method and apparatus for filling a tire and wheel assembly with a closed cell polyurethane foam
An apparatus and method for filling a tire and wheel assembly cavity, that can be a large tire and wheel, with a flexible closed cell polyurethane foam that is passed as a mixture of reacting...
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7607911 |
Method and apparatus for making foam-in-place cushions with selective distribution of foam
A method and apparatus for making a foam-in-place cushion in which a foam-forming composition is dispensed between two plastic film portions in a predetermined fashion to selectively control 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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7510383 |
Device for forming foamed product integral with trim cover assembly
A foaming die device is provided, which has a closure element rotatably provided therein. The foaming die device allows a three-dimensional trim cover assembly with an opening defined therein to be...
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7500839 |
Foam molding apparatus
A mold for molding is provided from which gas release can easily take place at the time of molding a foam body, which can minimize the amount of formation of burrs, and which can be easily...
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7500840 |
Apparatus for molding a mold and a metal used therefor
An apparatus for molding a mold by pressurizing a foam mixture composed of particles of aggregate, water-soluble binders, and water, and injecting it into a cavity of a heated metal mold that...
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7484946 |
Method and assembly for locating material within a structure
There is disclosed a method and assembly for locating a material adjacent or with a structure of an article of manufacture such as an automotive vehicle. The assembly typically includes a first...
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7481637 |
Vented mold and method for producing molded article
The invention relates mold, particularly a mold for producing foam articles. In a preferred embodiment, the mold comprises a lid and a bowl releasingly engageable to define a mold cavity, the lid...
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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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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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7318713 |
Polymer processing systems including screws
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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7300268 |
Low-density part injection molding system
An injection molding system (10) includes a first mold half (20) and a second mold half (22), which forms a cavity (23) with the first mold half (20). A cavity intrusion element (34) is...
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7293982 |
Device for producing physically expanded structural foams during an injection molding process involving the use of dynamic mixing elements
Foamed molded articles can be produced during an injection molding process, among other things, by utilizing physical blowing agents. Existing technologies differ to the greatest possible extent in...
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7281915 |
Overmould with anti-intrusion ribs
Overmould comprising a base having a central section, from a first side of which hooks project which form the male part of a self-gripping member, two sections forming selvages, laterally from each...
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7267534 |
Methods for manufacturing foam material including systems with pressure restriction element
The invention provides systems, methods, and articles useful in the production of foams, and, in particular microcellular foams. The systems include a restriction element that reduces the backflow...
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7226282 |
Charge roller of developing device for image forming apparatus, method for fabricating the same and tool for fabricating charge roller
A method of manufacturing a charge roller utilizes a foam rubber substance where epichlorohydrin oxide rubber and an acrylonitrile butadiene rubber are mixed at a ratio of 5:95, or utilizing a...
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7172403 |
Apparatus for preparing a gypsum wallboard core
A gypsum wallboard core, and methods and apparatus for making the same are disclosed. Methods of making a gypsum wallboard core include extruding a gypsum slurry containing water, gypsum, slip...
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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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7118362 |
Pellet-type foams of non-crosslinked polypropylene resin having lower melting point and process and device for producing the same and molded foams therefrom
The present invention relates to a pellet-type non-crosslinked polypropylene foam having a melting point of 125 to 140° C., and a process and device for producing said foam. Since the pellet-type ...
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7114934 |
Structure including a plurality of cells of cured resinous material, method of forming the structure and apparatus for forming the structure
A structure that includes a plurality of cells of a cured resinous material. Each cell is joined to at least one other cell.
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7077636 |
Foam-in-place apparatus, and methods of use and manufacture
A foam-in-place apparatus includes a foam containment unit, a foam precursor storage unit, and a foam precursor heating unit, in one embodiment. During operation, the foam precursor heating unit is...
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7066724 |
Apparatus for flatproofing a tire and wheel assembly
An apparatus 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...
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7028973 |
Structure for foaming die for forming headrest
A structure of foaming die for forming a generally inverted-L-shaped headrest, which is designed to receive and enclose an incomplete headrest unit comprising a hollow trim cover assembly of a...
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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 a...
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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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6997690 |
Flushless mold valve assembly
A low-pressure mold valve assembly includes a coupler to removably attach a mix head to a mold assembly in an assembly line environment. A first piston which is rectilinear in cross section is...
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6994812 |
Mold tool and method for forming a trim covered foam substrate of a seat assembly
A mold tool (16) for forming a trim covered foam substrate of a seat assembly comprises an upper mold cast (18) defining an upper mold surface (19) and a lower mold cast (20) defining a lower mold...
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6988878 |
Apparatus and method for molding articles
A first injection mechanism of an apparatus for molding articles injects coating material into a cavity defined in a clamped mold, thereby forming a predetermined coating on the inner surface of...
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6981861 |
Foaming mold using hollow tubes
The present invention relates to a foaming mold using hollow tubes, and more particularly, to an improved mold for use in manufacturing a foamed product through foaming (or expansion molding), in...
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6972100 |
Method and system for providing articles with rigid foamed cementitious cores
One aspect of the present invention pertains to an apparatus for forming a rigid foamed cementitious core within a plurality of article shells. In general, the apparatus can be comprised of a shell...
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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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6929763 |
Injection molding method
The invention provides an injection molding method comprising supplying a gas into a molten resin in a plasticizing cylinder and injecting the molten resin having the gas dissolved therein, wherein...
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6926507 |
Blowing agent delivery system
The invention provides a blowing agent delivery system for introducing a blowing agent into a polymeric foam processing system. The delivery system is designed to discontinuously introduce blowing...
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