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BR9911025A - Processo para preparar uma folha de espuma polimérica termoformável. - Google Patents

Processo para preparar uma folha de espuma polimérica termoformável.

Info

Publication number
BR9911025A
BR9911025A BR9911025-3A BR9911025A BR9911025A BR 9911025 A BR9911025 A BR 9911025A BR 9911025 A BR9911025 A BR 9911025A BR 9911025 A BR9911025 A BR 9911025A
Authority
BR
Brazil
Prior art keywords
foam
foam sheet
polypropylene
polymer
sheet
Prior art date
Application number
BR9911025-3A
Other languages
English (en)
Inventor
Martin H Tusim
Martin C Cornell
Kyung W Suh
Christopher P Christenson
Chung P Park
Original Assignee
Chemical Company
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 Chemical Company filed Critical Chemical Company
Publication of BR9911025A publication Critical patent/BR9911025A/pt

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/18—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by features of a layer of foamed material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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    • B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
    • B29C44/20—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of indefinite length
    • B29C44/22—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of indefinite length consisting of at least two parts of chemically or physically different materials, e.g. having different densities
    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • 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
    • B29C44/56—After-treatment of articles, e.g. for altering the shape
    • B29C44/5627—After-treatment of articles, e.g. for altering the shape by mechanical deformation, e.g. crushing, embossing, stretching
    • B29C44/5654—Subdividing foamed articles to obtain particular surface properties, e.g. on multiple modules
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    • 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
    • B29C48/05—Filamentary, e.g. strands
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    • C08J2323/12—Polypropene
    • 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
    • C08J2423/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
    • C08J2423/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
    • C08J2423/04—Homopolymers or copolymers of ethene
    • C08J2423/06—Polyethene
    • 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
    • C08J9/0061—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof characterized by the use of several polymeric components
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S264/00—Plastic and nonmetallic article shaping or treating: processes
    • Y10S264/05—Use of one or more blowing agents together

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Medicinal Chemistry (AREA)
  • Materials Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Mechanical Engineering (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
  • Laminated Bodies (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Vehicle Interior And Exterior Ornaments, Soundproofing, And Insulation (AREA)
  • Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)

Abstract

''PROCESSO PARA PREPARAR UMA FOLHA DE ESPUMA POLIMéRICA TERMOFORMáVEL''. A presente invenção compreende um processo para preparar uma folha de espuma polimérica, que compreende (i) extrudar através de uma matriz de extrusão anular uma composição espumável compreendendo pelo menos um polímero de polipropileno e pelo menos um agente de sopro, a uma pressão, temperatura, e taxa de extrusão suficientes para evitar a espumação da composição antes de sair da matriz, sob condições suficientes para formar um tubo de espuma tendo uma densidade de pelo menos 16 kg/m³ e não maior que 200 kg/m³, e um teor de células abertas menor que 70 por cento, uma circunferência de pelo menos 1 metro, e uma espessura de espuma de pelo menos 2 mm e não maior que 25 mm, sendo que o agente de sopro é usado em uma quantidade de 0,2 a 4,5 moles por kg de polímero, (ii) permitir que a espuma resfrie até uma temperatura abaixo da temperatura de fusão do polipropileno, e (iii) cortar o tubo de espuma ao longo do seu raio para formar uma folha de espuma, sendo que pelo menos 70 por cento em peso do polímero em tal folha é polipropileno tendo uma resistência de fundido na faixa de 30 a 60 Cn quando medida a 190°C.
BR9911025-3A 1998-05-27 1999-04-30 Processo para preparar uma folha de espuma polimérica termoformável. BR9911025A (pt)

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US8694498P 1998-05-27 1998-05-27
US8905898P 1998-06-12 1998-06-12
PCT/US1999/009448 WO1999061520A1 (en) 1998-05-27 1999-04-30 Thermoformable polypropylene foam sheet

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BR9910334-6A BR9910334A (pt) 1998-05-27 1999-04-29 Forração de teto veicular compreendida de uma folha termoplástica termoformável e processo para sua montagem e instalação no veìculo
BR9911025-3A BR9911025A (pt) 1998-05-27 1999-04-30 Processo para preparar uma folha de espuma polimérica termoformável.

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BR9910334-6A BR9910334A (pt) 1998-05-27 1999-04-29 Forração de teto veicular compreendida de uma folha termoplástica termoformável e processo para sua montagem e instalação no veìculo

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DE69916052D1 (en) 2004-05-06
CN1118507C (zh) 2003-08-20
TR200003492T2 (tr) 2001-03-21
CA2328974A1 (en) 1999-12-02
HUP0101966A3 (en) 2002-02-28
BR9910334A (pt) 2001-01-09
NO20005927L (no) 2000-11-23
RU2219198C2 (ru) 2003-12-20
AU3967699A (en) 1999-12-13
IL139579A0 (en) 2002-02-10
TW482726B (en) 2002-04-11
IL139580A0 (en) 2002-02-10
KR20010043812A (ko) 2001-05-25
CA2330922A1 (en) 1999-12-02
EP1082236A1 (en) 2001-03-14
CN1303406A (zh) 2001-07-11
WO1999061520A1 (en) 1999-12-02
NO20005927D0 (no) 2000-11-23
CA2330922C (en) 2009-09-29
TW453950B (en) 2001-09-11
ATE263203T1 (de) 2004-04-15
HUP0101966A2 (hu) 2001-10-28
DE69916052T2 (de) 2004-10-28
EP1082381B1 (en) 2004-03-31
EP1082381A1 (en) 2001-03-14
KR20010043823A (ko) 2001-05-25
WO1999061283A1 (en) 1999-12-02
US6251319B1 (en) 2001-06-26
NO324390B1 (no) 2007-10-01
AU749141B2 (en) 2002-06-20
ES2219016T3 (es) 2004-11-16
JP2002516370A (ja) 2002-06-04
AU3874099A (en) 1999-12-13
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CN1303337A (zh) 2001-07-11

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