CO4410417A1 - FOAM OF PLASTIC MATERIAL AND METHOD FOR MANUFACTURING IT - Google Patents

FOAM OF PLASTIC MATERIAL AND METHOD FOR MANUFACTURING IT

Info

Publication number
CO4410417A1
CO4410417A1 CO95009620A CO95009620A CO4410417A1 CO 4410417 A1 CO4410417 A1 CO 4410417A1 CO 95009620 A CO95009620 A CO 95009620A CO 95009620 A CO95009620 A CO 95009620A CO 4410417 A1 CO4410417 A1 CO 4410417A1
Authority
CO
Colombia
Prior art keywords
foam
less
plastic material
resin
pounds
Prior art date
Application number
CO95009620A
Other languages
Spanish (es)
Inventor
Graham Ramlu Sanyasi
Original Assignee
A C I Operations
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by A C I Operations filed Critical A C I Operations
Publication of CO4410417A1 publication Critical patent/CO4410417A1/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
    • C08J9/04—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent
    • C08J9/12—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a physical blowing agent
    • C08J9/127—Mixtures of organic and inorganic blowing agents
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
    • B29C44/34—Auxiliary operations
    • B29C44/3469—Cell or pore nucleation
    • B29C44/348—Cell or pore nucleation by regulating the temperature and/or the pressure, e.g. suppression of foaming until the pressure is rapidly decreased
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/78—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling
    • B29C48/80—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling at the plasticising zone, e.g. by heating cylinders
    • B29C48/83—Heating or cooling the cylinders
    • B29C48/832—Heating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/78—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling
    • B29C48/80—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling at the plasticising zone, e.g. by heating cylinders
    • B29C48/83—Heating or cooling the cylinders
    • B29C48/834—Cooling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/78—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling
    • B29C48/86—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling at the nozzle zone
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/78—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling
    • B29C48/86—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling at the nozzle zone
    • B29C48/87—Cooling
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
    • C08J9/04—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent
    • C08J9/12—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a physical blowing agent
    • C08J9/122—Hydrogen, oxygen, CO2, nitrogen or noble gases
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2203/00—Foams characterized by the expanding agent
    • C08J2203/14—Saturated hydrocarbons, e.g. butane; Unspecified hydrocarbons
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2203/00—Foams characterized by the expanding agent
    • C08J2203/14—Saturated hydrocarbons, e.g. butane; Unspecified hydrocarbons
    • C08J2203/142—Halogenated saturated hydrocarbons, e.g. H3C-CF3
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2325/00—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an aromatic carbocyclic ring; Derivatives of such polymers
    • C08J2325/02—Homopolymers or copolymers of hydrocarbons
    • C08J2325/04—Homopolymers or copolymers of styrene
    • C08J2325/06—Polystyrene

Abstract

UN METODO PARA PRODUCIR UNA ESPUMA EXTRUSIONADA DE MATERIAL PLASTICO, PROVISTA DE UN ACRECENTADA RESISTENCIA FISICA, CARACTERIZADO PORQUE COMPREN- DE: (a) EL MEZCLADO INTIMO DE UN AGENTE DE SOPLADO QUE LLEVA INCORPORADO CO2 Y EN CUAL LA PRINCIPAL POR- CION ES UN GAS NATURAL, EN UN MATERIAL PLASTICO RESINA FUNDIDO, DE MODO DE FORMAR UNA MEZCLA HOMOGENEA DE RESINA; Y (b) LA EXTRUSION DE LA MEZCLA DE RESINA, A TRAVES DE UNA MATRIZ DE SALIDA, HACIA UNA ZONA DE MENOR PRESION; EN EL CUAL LA TEMPERATURA DE LA MEZCLA DE RESINA, ES AJUSTADA DE MANERA TAL QUE ES INFERIOR A LA TEMPERATURA CRITICA (QUE SE DEFINE EN LA MEMORIA DESCRIPTIVA) EN EL PUNTO DE EXTRUSION, FUERA DE LA MATRIZ DE SALIDA. UNA HOJA EXTRUSIONADA DE POLIESTIRENO, QUE INCLUYE UNA ESTRUCTURA CELULAR CARACTERIZADO PORQUE EL DIAMETRO PROMEDIO DE LAS CELULAS ES INFERIOR A 0,002 PULGADAS Y QUE TIENE UNA DENSIDAD INFERIOR O IGUAL A 4,0 LIBRAS/PIE CUBICO, (0,1108Kg/cm3). UNA ESPUMA DE ACUERDO CON LA REIVINDICACION 19, CARACTERIZADO PORQUE LA DENSIDAD DE LA ESPUMA, ES DE ENTRE 2,0 Y 3,0 LIBRAS/PIE CUBICO. (0,0554 y 0,0831 kg/cm3). UNA BANDEJA DE ESPUMA, CARACTERIZADO PORQUE HA SI- DO FORMADA A PARTIR DE UNA ESPUMA DE POLIESTIRENO DE ACUERDO CON LA REIVINDICACION 19. FIGURA 1 . . . . . . . . . .A METHOD TO PRODUCE AN EXTRUDED FOAM OF PLASTIC MATERIAL, PROVIDED WITH AN INCREASED PHYSICAL RESISTANCE, CHARACTERIZED BECAUSE IT INCLUDES: (a) THE INTIMATE MIXING OF A BLOWING AGENT THAT HAS INCORPORATED CO2 AND IN WHICH THE MAIN ONE IS BY- NATURAL, IN A FUSED RESIN PLASTIC MATERIAL, IN ORDER TO FORM A HOMOGENOUS RESIN MIX; AND (b) THE EXTRUSION OF THE RESIN MIXTURE, THROUGH AN EXIT MATRIX, TO A LESS PRESSURE AREA; IN WHICH THE TEMPERATURE OF THE RESIN MIXTURE IS ADJUSTED SO THAT IT IS LESS THAN THE CRITICAL TEMPERATURE (DEFINED IN THE DESCRIPTIVE MEMORY) AT THE EXTRUSION POINT, OUTSIDE THE EXIT MATRIX. AN EXTRUSED SHEET OF POLYSTYRENE, WHICH INCLUDES A CELL STRUCTURE CHARACTERIZED BECAUSE THE AVERAGE DIAMETER OF THE CELLS IS LESS THAN 0.002 INCHES AND HAS A DENSITY LESS THAN OR EQUAL TO 4.0 POUNDS / CUBIC FOOT, (0.1108Kg / cm3) A FOAM IN ACCORDANCE WITH CLAIM 19, CHARACTERIZED BECAUSE THE DENSITY OF THE FOAM, IS BETWEEN 2.0 AND 3.0 POUNDS / CUBIC FOOT. (0.0554 and 0.0831 kg / cm3). A FOAM TRAY, CHARACTERIZED BECAUSE IT HAS BEEN FORMED FROM A POLYSTYRENE FOAM ACCORDING TO CLAIM 19. FIGURE 1. . . . . . . . . .

CO95009620A 1994-03-11 1995-03-10 FOAM OF PLASTIC MATERIAL AND METHOD FOR MANUFACTURING IT CO4410417A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AU57773/94 1994-03-11

Publications (1)

Publication Number Publication Date
CO4410417A1 true CO4410417A1 (en) 1997-01-09

Family

ID=3743119

Family Applications (1)

Application Number Title Priority Date Filing Date
CO95009620A CO4410417A1 (en) 1994-03-11 1995-03-10 FOAM OF PLASTIC MATERIAL AND METHOD FOR MANUFACTURING IT

Country Status (10)

Country Link
EP (1) EP0749455A4 (en)
JP (1) JPH09509975A (en)
AU (1) AU1941395A (en)
BR (1) BR9507102A (en)
CA (1) CA2185221A1 (en)
CO (1) CO4410417A1 (en)
IN (1) IN188233B (en)
NZ (1) NZ282337A (en)
PE (1) PE22495A1 (en)
WO (1) WO1995024440A1 (en)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5158986A (en) 1991-04-05 1992-10-27 Massachusetts Institute Of Technology Microcellular thermoplastic foamed with supercritical fluid
DE4437860A1 (en) † 1994-10-22 1996-04-25 Basf Ag Process for the production of microcellular foams
AU6846396A (en) * 1995-08-14 1997-03-12 Massachusetts Institute Of Technology Gear throttle as a nucleation device in a continuous microcellular extrusion system
EP0923443B1 (en) 1996-08-27 2002-11-27 Trexel Inc. Method and apparatus for polymer foam extrusion, in particular microcellular foam
US6884377B1 (en) 1996-08-27 2005-04-26 Trexel, Inc. Method and apparatus for microcellular polymer extrusion
US6884823B1 (en) 1997-01-16 2005-04-26 Trexel, Inc. Injection molding of polymeric material
US6235380B1 (en) 1997-07-24 2001-05-22 Trexel, Inc. Lamination of microcellular articles
EP1040158B2 (en) 1997-12-19 2012-04-18 Trexel, Inc. Microcellular foam extrusion/blow molding process and article made thereby
US6706223B1 (en) 1997-12-19 2004-03-16 Trexel, Inc. Microcelluar extrusion/blow molding process and article made thereby
US6231942B1 (en) 1998-01-21 2001-05-15 Trexel, Inc. Method and apparatus for microcellular polypropylene extrusion, and polypropylene articles produced thereby
US6322347B1 (en) 1999-04-02 2001-11-27 Trexel, Inc. Methods for manufacturing foam material including systems with pressure restriction element
KR20030034229A (en) 2000-09-29 2003-05-01 트레셀 인코포레이티드 In-mold decorated articles and methods
JP4563739B2 (en) * 2004-07-09 2010-10-13 株式会社日本製鋼所 Extruded product manufacturing method and manufacturing apparatus
JP5277006B2 (en) * 2009-01-30 2013-08-28 積水化成品工業株式会社 Polystyrene resin foam and method for producing polystyrene resin foam
JP5466858B2 (en) * 2009-01-30 2014-04-09 積水化成品工業株式会社 Insulating sheet and method for producing the insulating sheet
EP2918388A1 (en) * 2014-03-10 2015-09-16 Sulzer Chemtech AG A process to recycle expandable plastic materials and an expandable or expanded plastic material obtainable thereby

Family Cites Families (11)

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Publication number Priority date Publication date Assignee Title
AU529339B2 (en) * 1978-11-13 1983-06-02 Monsanto Company Extruded polyalkenyl foam
US5286429A (en) * 1988-06-27 1994-02-15 Mobil Oil Corporation High melt index polystyrene foam and method
US5250577A (en) * 1989-08-02 1993-10-05 The Dow Chemical Company Polystyrene foam made with only carbon dioxide as a blowing agent and a process for making the same
DE4000542A1 (en) * 1990-01-10 1991-07-11 Basf Ag FOAM PANELS WITH HIGH THERMAL RESISTANCE
BR9101167A (en) * 1990-04-06 1991-11-05 Dow Chemical Co FOAM POLYMERIC COMPOSITION, PROCESS TO PRODUCE A FOAM PRODUCT AND FOAM PRODUCT
DE59104659D1 (en) * 1990-07-04 1995-03-30 Basf Ag Process for the production of foam boards with high compressive strength.
JPH08863B2 (en) * 1990-12-27 1996-01-10 積水化成品工業株式会社 Method for producing polystyrene-based resin foam
WO1993014923A1 (en) * 1992-01-24 1993-08-05 E.I. Du Pont De Nemours And Company A flexible polymeric foam for use as an insulator and a moisture retardant and a process for producing it
US5332761A (en) * 1992-06-09 1994-07-26 The Dow Chemical Company Flexible bimodal foam structures
US5269987A (en) * 1992-12-22 1993-12-14 Reedy Michael E Process for producing alkenyl aromatic foams using a combination of atmospheric and organic gases and foams produced thereby
US5348984A (en) * 1993-01-28 1994-09-20 Sealed Air Corporation Expandable composition and process for extruded thermoplastic foams

Also Published As

Publication number Publication date
BR9507102A (en) 1997-09-09
CA2185221A1 (en) 1995-09-14
WO1995024440A1 (en) 1995-09-14
JPH09509975A (en) 1997-10-07
EP0749455A1 (en) 1996-12-27
PE22495A1 (en) 1995-08-07
AU1941395A (en) 1995-09-25
MX9603699A (en) 1997-12-31
NZ282337A (en) 1997-11-24
IN188233B (en) 2002-08-31
EP0749455A4 (en) 1998-02-11

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