Class / Patent application number | Description | Number of patent applications / Date published |
264050000 | By mechanically introducing gas into material | 31 |
20080272510 | Method and Apparatus for Directly Injecting Steam in an Expanded Plastic Material Mold - A traditional steam chest molding apparatus for the manufacture of products from expanded plastic materials requires excessive amounts of steam to properly expand and fuse pellets of plastic together A molding apparatus is provided wherein a pair of complementary molds ( | 11-06-2008 |
20080277817 | METHODS FOR ALTERING THE IMPACT STRENGTH OF NONCELLULAR 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 improvements to foaming methods and the cellular structures of the foams made therefrom, and methods for altering the impact strength of solid or noncellular thermoplastic materials and the shaping of the materials into useful articles. | 11-13-2008 |
20090072427 | PROCESS FOR VARYING THE APPEARANCE OF A CONTAINER HAVING A FOAMED WALL - A process for varying the appearance of a container is disclosed, the process comprises injection molding a polymer preform having a non-reactive gas entrapped within the walls thereof, cooling the preform to a temperature below the polymer softening temperature, reheating the preform to a predetermined temperature greater than the polymer softening temperature, and blow molding the reheated preform, to prepare a container consisting essentially of a micro cellular foamed polymer having a non-reactive gas contained within the micro cellular foam cells, wherein the appearance of the container is varied based on the predetermined temperature. | 03-19-2009 |
20100052201 | FOAMED CELLULAR PANELS AND RELATED METHODS - Disclosed herein are methods for making expanded foamed polymeric panels from solid monolithic semi-crystalline thermoplastic material sheets having a first thickness, density, and volume. In one embodiment, the method comprises: absorbing an effective amount of a plasticizing gas into the semi-crystalline thermoplastic material sheet to yield a reversibly plasticized semi-crystalline thermoplastic material sheet that is differentially impregnated with the plasticizing gas to define a non-uniform gas concentration gradient across the initial first thickness; and heating the plasticized semi-crystalline thermoplastic sheet to yield the foamed polymeric panel, wherein the foamed polymeric panel comprises (1) a second thickness that is at least about three and half times greater than the first initial thickness, and (2) a non-uniform second density level that is less than the first density level. In another embodiment, the foamed polymeric panel also comprises (3) a second volume that is at least 5 times greater than the first volume. | 03-04-2010 |
20100201015 | PRODUCTION METHOD OF POLYETHYLENE TEREPHTHALATE GRAFT COPOLYMERIZED RESIN AND MOLDED PRODUCT THEREOF - The present invention provides a method of producing a polyethylene terephthalate graft copolymerized resin, comprising subjecting the following mixture to a homogeneous reaction at a temperature of 250° C. or higher to impart a high melt viscosity to the mixture, the mixture containing (A) 100 parts by weight of a polyethylene terephthalate polyester as a main material, (B) 0.01 to 2 parts by weight of a polymeric polyfunctional epoxy compound containing 7 to 100 epoxy groups in a molecule and having a molecular weight of 1,000 to 300,000 as a coupling agent, (C) 0.01 to 1 part by weight of a metal salt of an organic acid as a coupling reaction catalyst, and (D) 0 to 100 parts by weight of an aromatic alicyclic polyester and/or an aromatic aliphatic polyester each having a carboxyl group in an aromatic nucleus as an auxiliary material. | 08-12-2010 |
20100289167 | APPARATUS FOR PRODUCING POROUS BODY AND METHOD FOR PRODUCING POROUS BODY - An apparatus for producing a porous body that forms an expandable slurry containing at least inorganic powder, a foaming agent, and a binder into a sheet, causes the expandable slurry sheet to be foamed and baked, and thereby produces the porous body, the apparatus includes: a mixer preparing the expandable slurry by containing inorganic powder, a foaming agent, and a binder; a die-coater that has a discharge opening which discharges the expandable slurry provided from the mixer to an external thereof so as to shape the expandable slurry into a sheet; and a carrier sheet arranged so as to face the discharge opening of the die-coater with a gap interposed therebetween, and feeding the expandable slurry discharged from the discharge opening, wherein a flow path of the expandable slurry from inside the mixer to the discharge opening of the die-coater is hermetically sealed from an outside. | 11-18-2010 |
20110001256 | METHODS FOR BLOW MOLDING SOLID-STATE CELLULAR THERMOPLASTIC ARTICLES - A process for producing cellular thermoplastic articles. The process comprises the steps of treating a solid parison made from a thermoplastic material with a saturating gas at an elevated pressure for a period of time to provide a gas-saturated parison; heating the gas-saturated parison to prepare a cellular parison; placing the cellular parison in a mold; and blowing a molding gas into the cellular parison to expand the cellular parison into the shape of the mold to provide a shaped cellular article. | 01-06-2011 |
20110012281 | Process for Manufacturing A Plastic-Based Cellular Structure And Device For Implementing This Process - Process for manufacturing a plastic-based cellular structure, in which: | 01-20-2011 |
20110147975 | APPARTUS FOR PRODUCING HARD POLYURETHANE FOAM BY FROTH PROCESS - The present invention provides an apparatus for producing a hard polyurethane foam by a froth process in which interlocking of the supply of the inert gas compressed or liquefied as a foaming agent with the operation of a foaming machine is made possible. Provided is an apparatus for producing hard polyurethane foam by a froth process having a foaming agent supply means that quantitatively supplies the inert gas as a foaming agent and a foaming means that discharges a hard polyurethane foam obtained by forming a foaming polyol composition by mixing the inert gas and a polyol composition and then by mixing the foaming polyol composition with a polyisocyanate component, in which the foaming agent supply means has a pressure-reducing valve that reduces and adjusts the pressure of the inert gas and a needle valve that adjusts the flow rate of the inert gas, the foaming means has a compression cylinder for compressing and supplying the polyol composition, a regulation means that regulates the supply of the inert gas to the foaming means is provided between the foaming means and the foaming agent supply means, and a control means that controls the regulation means by sensing the operation of the compression cylinder is connected to the regulation means. | 06-23-2011 |
20110233806 | METHOD FOR MANUFACTURING VEHICLE LIGHTING PART - A method for manufacturing a vehicle lighting part in accordance with principles of the presently disclosed subject matter can include using a mold including a fixed section, a movable section, and a core section to slide according to a movement of the movable section, and an injection molding unit. The exemplary method can also include putting a first mixture of the molding compound and a chemical foaming agent into the injection molding unit, the molding compound containing polypropylene series resin to which a predetermined amount of talc is added. The method can also include producing a second mixture by enclosing a physical foaming agent in the first mixture in the injection molding unit. Finally, the exemplary method can include injecting the second mixture from the injection molding unit into the mold to fill the mold, and performing a core back of the core section immediately after injecting the second mixture into the mold to fill the mold. | 09-29-2011 |
20110233807 | FLYING FOAM APPARATUS AND METHOD OF MAKING FLYING FOAM - The present invention is an apparatus for generating foam shapes that float in air having a container, a gas source, an aeration nozzle for aerating a gas from the gas source, an outlet, and a separator for separating extruded foam into individualized foam shapes. | 09-29-2011 |
20110285047 | METHOD AND DEVICE OF FABRICATING THREE DIMENSIONAL SCAFFOLDS - A method of fabricating three-dimensional scaffolds includes the steps of forming a plurality of bubbles by providing a gelatin solution and a gas stream passing through a bubble production device, gathering the bubbles, cooling the bubbles, crosslinking the bubbles by adding the agent with aldehyde group, and breaking at least some of the bubbles to be interconnected to form a three-dimensional porous materials. | 11-24-2011 |
20120228793 | METHOD OF FORMING BLOWN POLYMERIC FOAM FILM - A method of forming a blown polymeric foam film is described herein. As described further below, equipment design (e.g., die design) and processing conditions may be controlled to form blown films having desired characteristics. | 09-13-2012 |
20120241993 | SYSTEMS AND METHODS FOR FREEFORM FABRICATION OF FOAMED STRUCTURES - Technologies are provided herein for fabricating foamed structures using a three dimensional fabricator. In particular, the present disclosure provides systems and methods of producing foamed structures using foamed materials, lattice foamed materials, and/or layer deposition employing the concept of viscous thread instability. | 09-27-2012 |
20120267814 | Roll fed flotation/impingement air ovens and related thermoforming Systems For Corrugation-Free Heating And Expanding Of Gas Impregnated Thermoplastic Webs - Disclosed herein are roll fed air heated flotation ovens and related thermoforming systems, assemblies, and machines that enable the corrugation-free expansion of a gas impregnated thermoplastic web passing through an oven chamber (without use of a pin-chain assembly), as well as to related methods. In an embodiment, a gas impregnated thermoplastic web is conveyed and expanded through an elongated air heated oven chamber, wherein the elongated oven chamber includes a plurality of downwardly directed heated air nozzles positioned at regular intervals along and within the upper portion of the oven chamber, and a plurality of upwardly directed heated air nozzles positioned at regular intervals along and within the lower portion of the oven chamber, but staggered apart from the downwardly directed heated air nozzles such that the gas impregnated thermoplastic material web undulates in an up and down wavelike fashion, thereby minimizing sagging, bagging, puckering, and/or buckling of the web. | 10-25-2012 |
20130015600 | APPARATUS FOR PRODUCING POROUS BODY AND METHOD FOR PRODUCING POROUS BODY - An apparatus for producing a porous body that forms an expandable slurry containing at least inorganic powder, a foaming agent, and a binder into a sheet, causes the expandable slurry sheet to be foamed and baked, and thereby produces the porous body, the apparatus includes: a mixer preparing the expandable slurry by containing inorganic powder, a foaming agent, and a binder; a die-coater that has a discharge opening which discharges the expandable slurry provided from the mixer to an external thereof so as to shape the expandable slurry into a sheet; and a carrier sheet arranged so as to face the discharge opening of the die-coater with a gap interposed therebetween, and feeding the expandable slurry discharged from the discharge opening, wherein a flow path of the expandable slurry from inside the mixer to the discharge opening of the die-coater is hermetically sealed from an outside. | 01-17-2013 |
20130285273 | KNEADING APPARATUS, METHOD FOR PRODUCING THERMOPLASTIC RESIN MOLDED PRODUCT, AND FOAM INJECTION MOLDING METHOD - A kneading apparatus for a thermoplastic resin, includes: a plasticizing cylinder which has a high pressure kneading zone and a pressure reduction zone; a screw in the plasticizing cylinder; a downstream side seal mechanism which shuts off communication between the high pressure kneading zone and the pressure reduction zone; and a pressure reduction zone pressure adjusting mechanism which is connected to the pressure reduction zone and which controls a pressure of the pressure reduction zone so that the pressure is not less than an atmospheric pressure and the pressure is not more than a maximum pressure of the high pressure kneading zone that is achieved when kneading a molten resin with a pressurized fluid, when the downstream side seal mechanism shuts off the communication between the high pressure kneading zone and the pressure reduction zone. | 10-31-2013 |
20140001668 | PRESSURE-CONTROLLING FOAM MOLDING METHOD AND DEVICE THEREOF | 01-02-2014 |
20140077406 | INJECTION MOLDING METHOD - An injection molding method comprising: a mold clamping step of clamping a first mold and a second mold to form a mold cavity; a first injection filling step of injecting a foamable molten resin into the mold cavity to fill an interior of the mold cavity with the foamable molten resin, after completion of the mold clamping step; a mold cavity expansion step of expanding the mold cavity by a specified quantity to cause the foamable molten resin to foam, after the start of the first injection filling step; and a second injection filling step of pouring a molten resin or gas into the foamable molten resin within the mold cavity, after the completion of the first injection filling step, and after the start of the mold cavity expansion step. | 03-20-2014 |
20140091489 | Blowing agent introduction in polymer foam processing - Systems and methods of processing polymer foam materials are provided. The methods involve introducing blowing agent downstream of an extruder. For example, the blowing agent may be introduced into a static mixing device positioned between the extruder and a mold. The methods may be used in connection with injection molding systems to produce high quality injection molded polymer foam articles. | 04-03-2014 |
20140183774 | METHOD AND DEVICE FOR PRODUCING A PIPE MEMBER - An object of the present invention is to provide a method for producing a pipe, which is capable of reducing the amount of thermoplastic material, without complicating an device for producing a pipe. The present invention provides a method for producing a pipe, comprising a thermoplastic material filling process for filling a die with a thermoplastic material, and a thermoplastic material discharging process for pushing out an unsolidified part of the thermoplastic material in the molding die using pressurized fluid, wherein the thermoplastic material is mixed with a foaming agent, the method further comprises a process for foaming the thermoplastic material filling the molding die, and the thermoplastic material discharging process is a process for pushing out a inner part of the thermoplastic material foamed in the molding die, by using the pressurized fluid prior to solidification of the inner part. | 07-03-2014 |
20140183775 | STRETCHED AND FOAMED PLASTIC CONTAINER AND METHOD OF PRODUCING THE SAME - A foamed plastic container in which the cell diameters vary along a gradient so as not to decrease the content protection performance, in a manner quite different from the foamed cells distributed in the conventional foamed containers. The foamed plastic container has a container wall formed by using a plastic material and in which foamed cells are distributed, the lengths of the foamed cells in the surface direction of the container wall decreasing from the outer surface of the container toward the inner surface thereof. | 07-03-2014 |
20140252669 | Method Of Fabricating An Injection Molded Component - A method of fabricating an injection-molded component is provided. The method includes the step of introducing pellets into an injection barrel of an injection molding machine. The pellets include a first supercritical fluid. The pellets are plasticized in the injection barrel and a second supercritical fluid is injected into the plasticized pellets. The second supercritical fluid and the plasticized pellets are mixed to form a mixed material. The mixed material is injected into a mold. | 09-11-2014 |
20140306367 | MANUFACTURING METHOD OF AN ECO FRIENDLY FOAMING PACKAGE MATERIAL - A manufacturing method of an eco friendly foam package material includes a raw material mixing step for mixing raw materials uniformly and thoroughly to form a mixed raw material, a raw material hybrid-melting step for performing a hybrid-melting process to form a hybrid-melted material, a particle forming step for performing the particle forming process by putting the hybrid-melted material into a pelletizer to form plastic particles, and a foam extrusion step. In the foam extrusion step the plastic particles are melted to become a gelatinous state material, and foamed with non-chemical method. Since the properties of the biodegradable polymer are changed by the decomposition enzyme, and further to mix with bio-cellulose and the industrial starch, such that the eco friendly foam package material with compostability is obtained. | 10-16-2014 |
20150008608 | INJECTION MOLDING APPARATUS AND METHOD OF MAKING FOAMED INJECTION MOLDED PRODUCT - A method and apparatus for injection molding a foamed product. A short shot of formable resin is injected into a cavity ( | 01-08-2015 |
20150008609 | DEPOSITING DEVICE - The invention is a depositing device for depositing flowable food containing gas comprising a pressurized feed N line conveying flowable food containing gas under pressure into the food; piston means operatively connected to the feed line comprising a piston and a chamber; an outlet to deliver food at the atmospheric pressure into moulds. The device comprises a pressure retaining means arranged to retain the product in the chamber at the same pressure as the line pressure and to deliver the product through the outlet as pressure in the chamber increases from the line pressure upon descent of the piston in the chamber. | 01-08-2015 |
20150042005 | Method for Infusing a Gas into a Thermoplastic Material, and Related Systems - A method for infusing gas into a thermoplastic material includes positioning a sheet of a thermoplastic material into a vertical or substantially vertical position; positioning a sheet of a gas-permeable material into a vertical or substantially vertical position; and winding together the positioned sheet of thermoplastic material sheet and the positioned sheet of gas-permeable material to form a roll of the thermoplastic material interleaved with the gas-permeable material, the interleaved roll having a longitudinal axis oriented in a vertical or substantially vertical position. The method also includes exposing the interleaved roll to an atmosphere of a gas pressurized to infuse the thermoplastic material with the gas, while the longitudinal axis of the interleaved roll is oriented in a vertical or substantially vertical position; and then unwinding the gas-infused interleaved roll, while the longitudinal axis of the interleaved roll remains in a vertical or substantially vertical position. | 02-12-2015 |
20150054190 | METHOD AND APPARATUS FOR MANUFACTURING SUSTAINABLE PRODUCTS WITH A BLOWN, FOAM STRUCTURE - A method for manufacturing sustainable products with a blown, foam structure, wherein a mass comprising at least natural polymers such as starch is passed under pressure into a mould cavity ( | 02-26-2015 |
20160001474 | METHOD FOR MANUFACTURING FOAMABLE INJECTION MOLDING AND INJECTION DEVICE THEREFOR - A plasticizing process in which a molten resin that has been plasticized and dissolved in a foaming gas is sent to the front end side of a heating cylinder ( | 01-07-2016 |
20160121523 | Pore Initiation Technique - A technique for initiating the formation of pores in a polymeric material that contains a thermoplastic composition is provided. The thermoplastic composition contains microinclusion and nanoinclusion additives dispersed within a continuous phase that includes a matrix polymer. To initiate pore formation, the polymeric material is mechanically drawn (e.g., bending, stretching, twisting, etc.) to impart energy to the interface of the continuous phase and inclusion additives, which enables the inclusion additives to separate from the interface to create the porous network. The material is also drawn in a solid state in the sense that it is kept at a temperature below the melting temperature of the matrix polymer. | 05-05-2016 |
20160375616 | A Process to Recycle Expandable Plastic Materials and an Expandable or Expanded Plastic Material Obtainable Thereby - A process is disclosed to recycle and/or formulate expandable plastic materials using a system ( | 12-29-2016 |