ES8601253A1 - Procedimiento para la obtencion de cuerpos de polietileno reticulado expandido, de elevado espesor y con celulas cerradas - Google Patents

Procedimiento para la obtencion de cuerpos de polietileno reticulado expandido, de elevado espesor y con celulas cerradas

Info

Publication number
ES8601253A1
ES8601253A1 ES536966A ES536966A ES8601253A1 ES 8601253 A1 ES8601253 A1 ES 8601253A1 ES 536966 A ES536966 A ES 536966A ES 536966 A ES536966 A ES 536966A ES 8601253 A1 ES8601253 A1 ES 8601253A1
Authority
ES
Spain
Prior art keywords
mins
polymer
container
crosslinking
decompsn
Prior art date
Legal status (The legal status 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 status listed.)
Expired
Application number
ES536966A
Other languages
English (en)
Other versions
ES536966A0 (es
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Agip Petroli SpA
Industria Italiana Petroli SpA
Original Assignee
Agip Petroli SpA
Industria Italiana Petroli SpA
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 Agip Petroli SpA, Industria Italiana Petroli SpA filed Critical Agip Petroli SpA
Publication of ES536966A0 publication Critical patent/ES536966A0/es
Publication of ES8601253A1 publication Critical patent/ES8601253A1/es
Expired legal-status Critical Current

Links

Classifications

    • 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
    • B29C44/02—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of definite length, i.e. discrete articles
    • B29C44/022—Foaming unrestricted by cavity walls, e.g. without using moulds or using only internal cores
    • 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
    • B29C44/02—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of definite length, i.e. discrete articles
    • B29C44/10—Applying counter-pressure during expanding
    • B29C44/105—Applying counter-pressure during expanding the counterpressure being exerted by a fluid
    • 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
    • C08J9/06—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 chemical blowing agent
    • C08J9/10—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 chemical blowing agent developing nitrogen, the blowing agent being a compound containing a nitrogen-to-nitrogen bond
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2023/00—Use of polyalkenes or derivatives thereof as moulding material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2023/00—Use of polyalkenes or derivatives thereof as moulding material
    • B29K2023/04—Polymers of ethylene
    • B29K2023/06—PE, i.e. polyethylene
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
    • B29K2105/24—Condition, form or state of moulded material or of the material to be shaped crosslinked or vulcanised
    • 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
    • C08J2323/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
    • C08J2323/02—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
    • C08J2323/04—Homopolymers or copolymers of ethene
    • 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
    • Y10S264/18—Cross-linking a thermoplastic linear foam during molding
    • 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
    • Y10S264/64—Processes of using preform in molding

Landscapes

  • Chemical & Material Sciences (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
  • Artificial Filaments (AREA)
  • Materials For Medical Uses (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
  • Laminated Bodies (AREA)
  • Molding Of Porous Articles (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Gyroscopes (AREA)
  • Acyclic And Carbocyclic Compounds In Medicinal Compositions (AREA)
  • Preparation Of Compounds By Using Micro-Organisms (AREA)
  • Peptides Or Proteins (AREA)
  • Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)
  • Organic Insulating Materials (AREA)
  • Manufacture Of Macromolecular Shaped Articles (AREA)

Abstract

PROCEDIMIENTO PARA LA OBTENCION DE CUERPOS DE POLIETILENO RETICULADO EXPANDIDO DE ESPESOR ELEVADO Y CON CELULAS CERRADAS. COMPRENDE LA FUSION DE UN POLIMERO DE ETILENO; HOMOGENEIZACION DEL MISMO EN ESTADO FUNDIDO CON 01 A 25% DE UN AGENTE RETICULANTE Y 2 A 25% DE UN AGENTE DE EXPANSION A UNA TEMPERATURA ENTRE 130JC Y 150JC DURANTE 5 A 10 MINUTOS. SOMETER LA MEZCLA A EXTRUSION Y SUBSIGUIENTE ENFRIAMIENTO O A MOLDEO PARA DARLE CONFIGURACION SOLIDA PARALELEPIPEDICA. INTRODUCIR EL CUERPO PARALEPIPEDICO EN UN RECIPIENTE CERRADO SOMETER A PRESION MEDIANTE UN GAS INERTE Y CALENTAR A 170-200JC. DESPRESIONIZAR EN UN TIEMPO DE 05-3MINUTOS PERMITIENDO LA EXPANSION DEL CUERPO Y RECUPERARLO. ESTOS COMPUESTOS DE POLIETILENO TIENEN APLICACIONES COMO AISLANTE TERMICO Y ACUSTICO PARA LA FABRICACION DE COJINES Y EN OBJETOS FLOTANTES.
ES536966A 1983-10-14 1984-10-11 Procedimiento para la obtencion de cuerpos de polietileno reticulado expandido, de elevado espesor y con celulas cerradas Expired ES8601253A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT8323300A IT1207987B (it) 1983-10-14 1983-10-14 Procedimento per la produzione di polietilene reticolato espanso.

Publications (2)

Publication Number Publication Date
ES536966A0 ES536966A0 (es) 1985-11-01
ES8601253A1 true ES8601253A1 (es) 1985-11-01

Family

ID=11205841

Family Applications (1)

Application Number Title Priority Date Filing Date
ES536966A Expired ES8601253A1 (es) 1983-10-14 1984-10-11 Procedimiento para la obtencion de cuerpos de polietileno reticulado expandido, de elevado espesor y con celulas cerradas

Country Status (21)

Country Link
US (1) US4559190A (es)
EP (1) EP0138265B1 (es)
JP (1) JPS6097833A (es)
AT (1) ATE41945T1 (es)
AU (1) AU571588B2 (es)
BG (1) BG43008A3 (es)
CA (1) CA1224614A (es)
CS (1) CS253595B2 (es)
DD (1) DD232717A5 (es)
DE (1) DE3477573D1 (es)
DK (1) DK159928C (es)
ES (1) ES8601253A1 (es)
GR (1) GR80625B (es)
HU (1) HU199528B (es)
IT (1) IT1207987B (es)
NO (1) NO844086L (es)
PL (1) PL145298B1 (es)
RO (1) RO90375A (es)
TR (1) TR22421A (es)
YU (1) YU45211B (es)
ZA (1) ZA848008B (es)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
LU86529A1 (fr) * 1986-07-25 1988-02-02 Labofina Sa Procede de production de mousse de polyolefines reticulees et mousses ainsi obtenues
EP0254705A3 (fr) * 1986-07-25 1990-03-14 Fina Research S.A. Procédé de production de mousse de polyoléfines réticulées et mousses ainsi obtenues
JPS63288731A (ja) * 1987-05-21 1988-11-25 Furukawa Electric Co Ltd:The ポリプロピレン樹脂系発泡体シ−トの製造方法
US4976902A (en) * 1988-10-04 1990-12-11 Rubatex Corporation Molding method for producing expanded polyolefin foam
CN1031122C (zh) * 1991-08-20 1996-02-28 安顺企业股份有限公司 乙烯-醋酸乙烯共聚物发泡鞋中底的制法
FR2721170A1 (fr) * 1994-06-15 1995-12-22 Lucien Jaffres Flotteur pour la pêche à la ligne.
GB0019171D0 (en) * 2000-08-05 2000-09-27 Zotefoams Plc Process for the preparation of cross linked expanded polymer film
FR2856659B1 (fr) * 2003-06-30 2005-09-23 Brosserie Soc Gen De Flacon chimiquement resistant pour produits cosmetiques.
JP2005255988A (ja) * 2004-02-10 2005-09-22 Sumitomo Chemical Co Ltd 押出発泡成形用エチレン−α−オレフィン共重合体および押出発泡成形品
EP2177335A1 (en) * 2008-10-17 2010-04-21 Grupo Antolin-Ingenieria S.A. Procedure for obtaining a foamed laminar product

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1478692A (es) * 1965-04-15 1967-07-12
DE1694163A1 (de) * 1966-09-28 1970-09-03 Furukawa Electric Co Ltd Verfahren zur Herstellung eines Polyolefinmischschaumstoffs
US3812225A (en) * 1967-01-23 1974-05-21 Furukawa Electric Co Ltd Method of manufacturing foamed crosslinked polyolefin slabs involving multiple expansion techniques and direct gas pressure
GB1227323A (es) * 1968-01-31 1971-04-07
DE2543248C2 (de) * 1975-09-27 1983-11-24 Dynamit Nobel Ag, 5210 Troisdorf Verfahren zur Herstellung von Schaumstoffbahnen aus Olefinpolymerisaten
DE2654029B2 (de) * 1976-11-27 1980-01-31 Basf Ag, 6700 Ludwigshafen Kontinuierliche Herstellung feinzelliger, vernieteter Polyolefinschaumstoffe
NO156481C (no) * 1978-09-13 1987-09-30 Bakelittfab As Fremgangsmaate til fremstilling av formlegemer av ekspandert plast.
US4435525A (en) * 1982-09-30 1984-03-06 Pennwalt Corporation Reaction of carbonylhydrazines and organic peroxides to foam unsaturated polyester resins
JPS6049039A (ja) * 1983-08-26 1985-03-18 Badische Yuka Co Ltd ポリオレフイン系樹脂発泡体粒子の製造方法
AU578020B2 (en) * 1984-04-26 1988-10-13 Sekisui Kagaku Kogyo Kabushiki Kaisha Crosslinkable and foamable polyolefin composition

Also Published As

Publication number Publication date
PL249997A1 (en) 1985-06-18
IT1207987B (it) 1989-06-01
RO90375A (ro) 1986-10-30
ES536966A0 (es) 1985-11-01
JPS6097833A (ja) 1985-05-31
DD232717A5 (de) 1986-02-05
YU174984A (en) 1986-08-31
DK159928C (da) 1991-05-21
BG43008A3 (en) 1988-03-15
EP0138265B1 (en) 1989-04-05
GR80625B (en) 1985-02-18
ATE41945T1 (de) 1989-04-15
YU45211B (en) 1992-05-28
TR22421A (tr) 1987-05-13
US4559190A (en) 1985-12-17
CS253595B2 (en) 1987-11-12
EP0138265A2 (en) 1985-04-24
CA1224614A (en) 1987-07-28
DK490284D0 (da) 1984-10-12
HU199528B (en) 1990-02-28
HUT37950A (en) 1986-03-28
AU571588B2 (en) 1988-04-21
NO844086L (no) 1985-04-15
DK490284A (da) 1985-04-15
DE3477573D1 (en) 1989-05-11
DK159928B (da) 1990-12-31
ZA848008B (en) 1985-07-31
EP0138265A3 (en) 1986-03-05
AU3416484A (en) 1985-04-18
PL145298B1 (en) 1988-08-31
IT8323300A0 (it) 1983-10-14

Similar Documents

Publication Publication Date Title
US3389198A (en) Process for molding cellular polyolefins
US3717559A (en) Process for the preparation of polypropylene resin foams
US3067147A (en) Process of foaming and extruding polyethylene using 1, 2-dichlorotetrafluoroethane as the foaming agent
ZA958267B (en) Moldable polyolefin beads
ES8601253A1 (es) Procedimiento para la obtencion de cuerpos de polietileno reticulado expandido, de elevado espesor y con celulas cerradas
GB1030886A (en) Improvements in or relating to cellular thermoplastic polymers
US3491032A (en) High density polyolefin foams
JPH0739501B2 (ja) 無架橋直鎖状低密度ポリエチレン予備発泡粒子
KR890010080A (ko) 중합체 합금
DE3570086D1 (en) Process for preparing cross-linked polyolefin foamed articles with closed cells
US3711430A (en) Expandable copolymers of alpha-olefins and alpha,beta-monoethylenically unsaturated carboxylic acids
WO1996025281B1 (en) Polymeric foam preparation
CA1039023A (en) Process of preparing shaped elastomeric articles
JPH0243206A (ja) 発泡用無架橋直鎖状低密度ポリエチレン樹脂粒子及び無架橋直鎖状低密度ポリエチレン発泡粒子の製造方法
EP0412172B1 (en) Heat-shrinkable, tubular foam
FR2170083A1 (en) Cross-linked polymers - with improved transparency made by cross-linking under high temp and pressure
GB1272129A (en) Press-moulded cross-linked polymeric foams and a process for producing the same
GB1176238A (en) Production of Expanded Mouldings of Olefin Polymers
KR830004957A (ko) 가교 폴리 올레핀 연속 발포체의 제조방법
JPS6031538A (ja) ポリオレフィン共重合発泡体の製造方法
JPH07138397A (ja) プロピレン系樹脂発泡成形体およびその製造方法
JPH0348936B2 (es)
GB935316A (en) Process of preparing cellular or expanded materials
FR2103389A1 (en) Cellular plasticised pvc articles - by single stage expansion of mixt of pvc blowing agent monomeric plasticiser and polymeric plas
GB2116987A (en) Polypropylene-containing mixtures for use in making construction units