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JSP Corporation Patents
Assignee:
JSP Corporation
Address:
Tokyo, JP
No. of patents:
53
Patents:


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Patent Number Title Of Patent Date Issued
8221876 Skin-covered propylene resin foamed molded article July 17, 2012
The present invention pertains to a skin-covered foamed molded article of expanded propylene resin beads having excellent lightness in weight, mechanical properties and appearance. The present invention provides a skin-covered foamed molded article of propylene resin expanded beads,
8129438 Method for producing foamed polyolefin resin beads March 6, 2012
Foamed polyolefin resin beads having antistatic properties obtained by a process, which includes dispersing polyolefin resin beads into an aqueous medium, injecting a blowing agent, stirring and allowing the polyolefin resin beads to foam and expand. The polyolefin resin beads are compos
7964652 Expandable polyethylene resin particle and method for production thereof June 21, 2011
Disclosed is a method for production of an expandable polyethylene resin particle having a foaming agent impregnated therein, which comprises polymerizing a styrene monomer or a monomer mixture containing a styrene monomer onto a nuclear particle comprising an ethylene-vinyl acetate
7960443 Extruded styrenic resin foam and method for producing the same June 14, 2011
The present invention relates to an extruded styrenic resin foam and a method for producing the same, wherein a base resin composing the extruded styrenic resin foam is a styrenic resin mixture of a styrene-(meth)acrylic ester copolymer, or a combination of a styrene-(meth)acrylic es
7863343 Expandable polylactic acid resin particles, expanded polylactic acid resin beads and molded arti January 4, 2011
Expandable polylactic acid resin particles including (a) a base resin containing a polylactic acid resin having at least 50 mol % of lactic acid monomer component units, (b) a polyolefin wax in an amount of 0.0001 to 1 part by weight per 100 parts by weight of the base resin, and (c) a
7803849 Acrylic resin expanded beads, acrylic resin expandable beads, and method for manufacturing foame September 28, 2010
The present invention is to solve conventional problems, namely, that when an attempt is made to obtain a thick, in-mold foamed molded article with excellent fusibility between beads formed from an acrylic resin expanded beads, cooling takes an extremely long time and production efficien
7727606 Polylactic acid resin foamed molding and process for manufacturing the same June 1, 2010
A polylactic acid resin foamed molding obtained by placing in a mold a cylindrical body having a foamed layer, which is formed by extruding a foamable molten resin composition prepared by kneading together a polylactic acid resin and a physical blowing agent from a die into a low-pre
7581769 Bumper absorber and manufacturing method for the same September 1, 2009
The present invention discloses a bumper absorber that is provided on an automobile between a bumper reinforcement and a bumper fascia, comprising a first energy absorbing portion formed by foaming a resin molded material; the first energy absorbing portion extending from the bumper
7323128 In-mold foam molding equipment and molding method January 29, 2008
An in-mold foam molding equipment, includes at least a movable partition member for dividing a molding space formed by a pair of molds into divided spaces, wherein the partition member is composed of a plurality of divisional partition members, wherein each of the divisional partition
7300960 Expandable polypropylene resin particle and molded object obtained therefrom by in-mold molding November 27, 2007
A specific relationship must be met in case of: (a) a structural unit derived from propylene is present in 100 to 85 mole %, and a structural unit derived from ethylene and/or alpha-olefin with 4 to 20 carbons is present in 0 to 15 mole %; (b) a content of a position irregularity unit
7259189 Expanded polypropylene resin beads and process for the production thereof August 21, 2007
A process for the production of expanded beads, including kneading a base resin containing a polypropylene resin and having a tensile modulus of at least 1,200 MPa together with a mixture of a coloring agent and a thermoplastic polymer having a tensile modulus lower than that of the
7244380 Process for producing polystyrene resin foam by extrusion July 17, 2007
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 having a thickness of at least 10 mm and a transverse cross-sectional area of at least 50
7192265 In-mold foam molding equipment and molding method March 20, 2007
An in-mold foam molding equipment, includes at least a movable partition member for dividing a molding space formed by a pair of molds into divided spaces, wherein the partition member is composed of a plurality of divisional partition members, wherein each of the divisional partition
7182896 Composite foamed polypropylene resin molding and method of producing same February 27, 2007
A composite foamed polypropylene resin molding including a plurality of sections which are fuse-bonded to each other, at least two of which differ from each other in color, apparent density, composition and/or mechanical strengths, each of which is formed from expanded polypropylene
7169338 Foam-molded article and manufacturing method thereof January 30, 2007
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 melt-kneading a polyethylene resin and a physical foaming agent, to an area of low pressure from a
7166348 Core material for vacuum heat insulation material, and vacuum heat insulation material January 23, 2007
Description is made of an open cell polystyrene resin foam having a content of organic volatile matters of less than 100 ppm. The open cell foam is suitable as a core material for a sound insulating material or a vacuum heat insulating material.The open cell foam can be produced by m
7014801 Polypropylene resin hollow molded foam article and a process for the production thereof March 21, 2006
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 article. More particularly, the present invention relates to a polypropylene resin hol
7008578 Method for production of extruded, polystyrene-based resin foam plate and extruded foam plate ob March 7, 2006
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 in an extruder to obtain a foamable molten composition, and the foamable molten composition
6986941 Multiple layers laminated polyolefin foam January 17, 2006
The present invention relates to a sheet or board like multiple layers laminated polyolefin foam having a plurality of polyolefin layers laminated on at least one side of a polyolefin foam by a coextrusion method. More specifically, the present invention relates to said multiple laye
6875484 MULTI-LAYER EXPANSION-MOLDED ARTICLE OF POLYPROPYLENE RESIN, PRODUCTION PROCESS THEREOF, AND CON April 5, 2005
A multi-layer expansion-molded article of a polypropylene resin, which is obtained by molding a multi-layer parison comprising a foamed resin layer and a resin layer provided on the outer side of the foamed resin layer in a mold in such manner that at least part of the opposed inner surf
6838488 Production method of foamed polypropylene resin beads January 4, 2005
A method for producing expanded polypropylene resin particles wherein polypropylene resin particles impregnated with a physical blowing agent are heated along with an aqueous medium and a dispersant and are released and expanded at reduced pressure from the interior of a pressure-tight
6818161 Molded body of thermoplastic resin having sound absorption characteristics November 16, 2004
An expansion-molded article (foamed body) produced by using foamed and expanded beads, and having open voids has sound absorbing qualities, and can be used as a sound absorbing material. A sound absorbing material which is able to attain a high sound absorption coefficient in a wide
6815051 Polyolefin resin molding composite November 9, 2004
A foam layer can be formed at a temperature at which the surface quality of a surface layer is not deteriorated, and a molding technique that is excellent in adhesiveness of a foam layer and a surface layer or/and a base member is developed. For the purpose of obtaining a resin molding
6771204 Radio wave absorber August 3, 2004
A radio wave absorber unit includes two or more molded bodies in a pyramid or wedge shape whose radius at the tip end is from 0.5 mm to 7.5 mm and a base. A radius at the trough between adjacent molded bodies is 7.5 mm or less. A unit including molded bodies and the base is integrally fo
6547996 Production apparatus of expansion-molded article, auxiliary member for transfer of foamed partic April 15, 2003
Disclosed herein is a production apparatus of expansion-molded articles, comprising a mold equipped with a foamed particle feeder having a foamed-particle feed opening and a compressed-air ejection nozzle opening toward the mold, by which foamed particles contained in a hopper is filled
6543573 Speaker unit, speaker system, and speaker diaphragm manufacturing method April 8, 2003
The present invention provides a speaker unit comprising a diaphragm of 0.5 to 10 mm thick aromatic polycarbonate with a density of 0.03 to 0.6 g/cm.sup.3, and a mechanism for driving the diaphragm. The aromatic polycarbonate used for the diaphragm is preferably derived from bisphenol
6541533 Extruded polyolefin resin foam April 1, 2003
The present invention provides thick extruded foam which is extruded polyolefin resin foam having open cells, used for cushion material and packaging material and the like, which exhibits uniform physical product properties, high expansion ratio, and uniform cell diameter.The extruded op
6537054 Apparatus for producing expansion-molded article March 25, 2003
The invention relates to an apparatus for manufacturing expansion-molded articles continuously by conveying foamed beads into a heating region sandwiched between upper and lower belts. The apparatus has a belt that continuously travels along the upper inside face of a passageway, defined
6451419 Shock absorbing material September 17, 2002
A shock-absorbing material composed of an expansion-molded article of polypropylene resin particles is excellent in shock-absorbing property and impact resilience compared with shock-absorbing materials composed of other resin materials, but has not been said to be satisfactory in st
6432525 Blow-molded foam and process for producing the same August 13, 2002
In the present invention, for the production of a blow-molded foam, there is used a base resin which is mainly composed of a polypropylene resin and has, at 230.degree. C., a melt tension (MT) of 10 gf or over and a melt flow rate (MFR) of 0.5 g/10 minutes or over. A foaming agent is add
6313184 Expanded polypropylene resin beads and a molded article November 6, 2001
Propylene resin beads for molding expansion molded articles having improved high temperature resistance include as base resin metallocene-catalyzed copolymers of propylene with at least one or more of ethylene and .varies.-olefins of 4 to 20 carbon atoms. The metallocene-catalyzed pr
6220842 Production apparatus of expansion-molded article and auxiliary member for transfer of foamed par April 24, 2001
Disclosed herein is a production apparatus of expansion-molded articles, comprising a mold equipped with a foamed particle feeder having a foamed-particle feed opening and a compressed-air ejection nozzle opening toward the mold, by which foamed particles contained in a hopper is filled
6133331 Expanded particles of polyolefin resin and process for preparing the same October 17, 2000
When it is intended to obtain foamed particles having a high expansion ratio upon the production of foamed particles of a polyolefin resin, there has been a problem that foamed particles uneven in cell diameter are produced. Any molded article produced with such foamed particles has
6077875 Foamed and expanded beads of polypropylene resin for molding June 20, 2000
Disclosed herein are foamed and expanded beads of a polypropylene resin for molding, which comprise an uncrosslinked propylene random copolymer having a melting point of at least 140.degree. C. as a base resin, wherein the time required to attenuate an air pressure within the foamed bead
6034144 Molded article of foamed and expanded beads of propylene resin March 7, 2000
Disclosed herein is an molded article of foamed and expanded beads of a propylene resin, which is obtained by heating and molding the foamed beads of the propylene resin, wherein the apparent density of the molded article is 0.11 to 0.45 g/cm.sup.3, a value obtained by dividing its maxim
5968430 Process for producing an expansion-molded article October 19, 1999
Disclosed herein is a method for continuously producing an expansion-molded article, comprising feeding foamed particles between a belt continuously traveling along the upper surface within a passageway defined by structural members and having a rectangular form in section and a belt
5747549 Foamed particles of polypropylene homopolymer and molded article of the foamed particles May 5, 1998
The molded articles of foamed particles, which are produced by using foamed particles composed of a polypropylene-based polymer, have had excellent cushioning characteristics and impact resilience, but have been not always satisfactory in stiffness such as compressive strength.The invent
5651912 Decorative mold for forming concrete surface with uneven pattern July 29, 1997
The present invention relates to a decorative mold having an uneven pattern for forming a concrete surface with an uneven pattern by transfer. The present decorative mold is made of a molded product of polypropylene type foamed particles having a density of 0.02 to 0.06 g/cm.sup.3 and is
5622756 Expansion-molded article of polyolefin resin having open voids April 22, 1997
An expansion-molded article of a polyolefin resin, which is high in fusion-bonding strength and excellent in water permeability and compressive strength and has open voids, and a production process thereof are disclosed. The expansion-molded article is made of tubular foamed particle
5569681 Flame-retardant foamed particles of polyolefin resin October 29, 1996
Flame-retardant foamed particles of a polyolefin resin, which contain a bis(alkyl ether)tetrabromobisphenol A flame retardant and/or a bis(alkyl ether)tetrabromobisphenol S flame retardant, and a synergist of the flame retardant, are disclosed. The flame retardant has a bromine content o
5459169 Uncrosslinked polyethylene particles for the production of expanded particles and uncrosslinked October 17, 1995
The present invention relates to uncrosslinked polyethylene particles for the production of expanded particles that can easily and securely produce expanded particles which can be molded without applying a special internal pressure, are excellent in moldability, such as secondary expansi
5391581 Production method of foamed particles of uncrosslinked ethylene-based resin February 21, 1995
Disclosed herein is a method of producing foamed particles of an ethylene-based resin, which have a high expansion ratio and are free from the formation of fine cells, by dispersing particles of the uncrosslinked ethylene-based resin, which are obtained using, as a base resin, an eth
5340841 Production method of foamed particles of polyolefin resin August 23, 1994
Disclosed herein is a method of producing foamed particles of a polyolefin resin, which are prevented from fusion-bonding among the particles upon their production, and exhibit excellent moldability without impeding fusion bonding property among the foamed particles upon their molding. T
5284431 Filling apparatus for filling foamed particles of a thermoplastic resin into a mold February 8, 1994
A filling apparatus for filling foamed particles of a thermoplastic resin into a mold. The apparatus includes a weigh hopper equipped with a weighing means, a foamed particle feeder adapted to control the amount of the foamed particles of the thermoplastic resin to be fed to the weigh
5225490 Biodisintegrable thermoplastic resin moldings and a process for producing same July 6, 1993
Biodisintegrable thermoplastic resin moldings and a process for producing same are disclosed, the biodisintegrable thermoplastic resin moldings being comprised of a thermoplastic aliphatic polyester resin as a matrix resin having dispersed therein an other type of thermoplastic resin in
5196254 Cushioning material March 23, 1993
A cushioning material is disclosed which includes two laminated films between which a plurality of air tight cells are formed. Each of the films is composed of an intermediate layer formed of an aromatic polyamide resin and two surface layers formed of a polyolefin resin and provided on
5130341 Process for the production of foamed poymer particles July 14, 1992
Disclosed herein is a production process of foamed polymer particles, wherein particles of a polymer, which contain a silica-alumina absorbent in which the molar ratio of SiO.sub.2 Al.sub.2 O.sub.3 is at least 1.15:1 are dispersed in a dispersion medium in the presence of carbon dioxide
5124371 Biodegradable plastic composition, biodegradable plastic shaped body and method of producing sam June 23, 1992
A biodegradable plastic composition is disclosed which includes a polycaprolactone and a poly-.beta.-hydroxybutyrate. Disclosed also is a biodegradable plastic shaped body formed of such a composition. The shaped body may be produced by melt-mixing a blend of a polycaprolactone, a po
5122545 Production method of prefoamed synthetic resin particles June 16, 1992
Prefoamed synthetic resin particles are produced by dispersing foamable resin particles in a dispersing medium within a closed vessel, said foamable resin particles containing a water-soluble inorganic substance and a blowing agent therein, and then releasing the foamable resin parti
5122322 Method of producing composite thermoplastic resin film June 16, 1992
A composite, thermoplastic resin film includes a matrix in the form of a film, and formed of a first thermoplastic resin and a plurality of substantially continuous tapes dispersed within the matrix film with the plane of each of the tapes being substantially parallel with the plane of
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