ES8700274A1 - Procedimiento de tratamiento termomecanico de copolimeros deetileno y alfa-olefina superiores - Google Patents

Procedimiento de tratamiento termomecanico de copolimeros deetileno y alfa-olefina superiores

Info

Publication number
ES8700274A1
ES8700274A1 ES542062A ES542062A ES8700274A1 ES 8700274 A1 ES8700274 A1 ES 8700274A1 ES 542062 A ES542062 A ES 542062A ES 542062 A ES542062 A ES 542062A ES 8700274 A1 ES8700274 A1 ES 8700274A1
Authority
ES
Spain
Prior art keywords
copolymers
lldpe
thermo
polymers
treated
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
ES542062A
Other languages
English (en)
Other versions
ES542062A0 (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.)
BP Chemicals Ltd
Original Assignee
BP Chemicals Ltd
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 BP Chemicals Ltd filed Critical BP Chemicals Ltd
Publication of ES542062A0 publication Critical patent/ES542062A0/es
Publication of ES8700274A1 publication Critical patent/ES8700274A1/es
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F8/00—Chemical modification by after-treatment
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F8/00—Chemical modification by after-treatment
    • C08F8/50—Partial depolymerisation

Landscapes

  • Chemical & Material Sciences (AREA)
  • General Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
  • Processes Of Treating Macromolecular Substances (AREA)
  • Treatments Of Macromolecular Shaped Articles (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Abstract

PROCEDIMIENTO DE TRATAMIENTO DE POLIMEROS DE ETILENO Y ALFA-OLEFINAS SUPERIORES, DEL TIPO DE POLIETILENO LINEAL DE BAJA DENSIDAD (LLDPE) PROPORICONANDOLOS IDONEIDAD PARA SU EXTRUSION POR MEDIO DE MAQUINAS UTILIZADAS EN LA EXTRUSION DE POLIETILENO DE ALTA DENSIDAD (HDPE). CONSISTE EN UN TRATAMIENTO TERMOMECANICO DE LOS COPOLIMEROS EN ESTADO FUNDIDO, EN PRESENCIA DE UN 0,01-1% EN PESO DE UN PEROXIDO ORGANICO FORMADOR DE RADICALES LIBRES, EN FORMA LIQUIDA EN SOLUCION EN SOLVENTE HIDROCARBONADO, A TEMPERATURAS CRECIENTES, COMPRENDIDAS ENTRE 130 Y 250JC. LOS LLDPE CON UN INDICE DE FUSION MI2,16 SUPERIOR A 3 G/10 MINUTOS, UN PARAMETRO DE FLUJO N1 DE 20 A 40, UN INDICE DE POLIDISPERSION P1 DE 2,7 A 4,7 Y UN INDOICE DE RAMIFICACION SUPERIOR A 0,95, SE INTRODUCEN EN FORMA DE POLVO EN UN EXTRUSOR, JUNTO CON EL PEROXIDO. LOS POLIMEROS TRATADOS SE USAN EN LA ELABORACION DE TUBOS, VAINAS Y AISLAMIENTOS PARA CABLES E HILOS ELECTRICOS.
ES542062A 1984-04-09 1985-04-09 Procedimiento de tratamiento termomecanico de copolimeros deetileno y alfa-olefina superiores Expired ES8700274A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8405549A FR2562546B1 (fr) 1984-04-09 1984-04-09 Procede de traitement de polyethylene de basse densite lineaire destine a la fabrication par extrusion de corps creux, tubes et gaines

Publications (2)

Publication Number Publication Date
ES542062A0 ES542062A0 (es) 1986-10-16
ES8700274A1 true ES8700274A1 (es) 1986-10-16

Family

ID=9302961

Family Applications (1)

Application Number Title Priority Date Filing Date
ES542062A Expired ES8700274A1 (es) 1984-04-09 1985-04-09 Procedimiento de tratamiento termomecanico de copolimeros deetileno y alfa-olefina superiores

Country Status (6)

Country Link
EP (1) EP0161774A1 (es)
JP (1) JPS61501782A (es)
ES (1) ES8700274A1 (es)
FR (1) FR2562546B1 (es)
PT (1) PT80248B (es)
WO (1) WO1985004664A1 (es)

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2592051B1 (fr) * 1985-12-24 1988-10-14 Charbonnages Ste Chimique Compositions de polymeres de l'ethylene, un procede pour leur preparation et leur application a l'obtention d'articles industriels
DE3642266A1 (de) * 1986-12-11 1987-04-23 Rauer Kurt Abbau von polyethylen mittels radikalbildner
US5047485A (en) * 1989-02-21 1991-09-10 Himont Incorporated Process for making a propylene polymer with free-end long chain branching and use thereof
US5525695A (en) * 1991-10-15 1996-06-11 The Dow Chemical Company Elastic linear interpolymers
US5783638A (en) * 1991-10-15 1998-07-21 The Dow Chemical Company Elastic substantially linear ethylene polymers
DE4224990A1 (de) * 1992-07-29 1994-02-03 Guenter Hufschmid Wiederverwertung von Polyolefinabfällen durch thermischen, oxidativen bzw. katalytischen Abbau zu Polyolefinwachsen, Polyolefinharzen oder durch Oxidation zu oxidierten Polyolefinen
US5414040A (en) * 1992-09-15 1995-05-09 The Dow Chemical Company Formulated ethylene/α-olefin elastomeric compounds
US6300451B1 (en) 1994-10-24 2001-10-09 Exxon Chemical Patents Inc. Long-chain branched polymers and their production
DE69619603T2 (de) * 1995-07-28 2002-09-26 Tosoh Corp., Shinnanyo Formmasse, Zusammensetzung die diese Formmasse enthält und Verfahren zu deren Herstellung
DE69707107T2 (de) * 1996-03-05 2002-03-07 The Dow Chemical Co., Midland Rheologisch modifizierte polyolefine
AU9118498A (en) 1997-08-27 1999-03-16 Dow Chemical Company, The Elastomers with improved processability
BR9906086B1 (pt) * 1999-12-21 2009-01-13 aplicaÇço de polietileno linear de baixa densidade (pelbd) modificado em filmes termocontrÁteis e filmes termocontrÁteis.
CZ304440B6 (cs) 2000-05-19 2014-05-07 Ciba Specialty Chemicals Holding Inc. Způsob snižování molekulové hmotnosti polypropylenu za použití hydroxylaminových esterů
US7030196B2 (en) 2000-05-19 2006-04-18 Ciba Specialty Chemicals Corporation Process for reducing the molecular weight of polypropylene
AU2003292779A1 (en) * 2002-12-27 2004-07-29 Nof Corporation METHOD FOR PRODUCING HYDROXYL-MODIFIED ETHYLENE-Alpha-OLEFIN COPOLYMER
ITMI20030629A1 (it) * 2003-03-31 2004-10-01 Polimeri Europa Spa Composizione elastomerica per l'isolamento di cavi elettrici.
US7399809B1 (en) * 2007-01-11 2008-07-15 Equistar Chemicals, Lp Modifying polyethylene made by Ziegler or single-site catalyst with free radical initiator
EP2825572B1 (en) 2012-03-15 2022-07-27 ExxonMobil Chemical Patents Inc. Oxygen tailoring of polyethylene
US9346897B2 (en) 2013-05-14 2016-05-24 Chevron Phillips Chemical Company Lp Peroxide treated metallocene-based polyolefins with improved melt strength
CN106604954B (zh) * 2014-08-28 2021-02-12 陶氏环球技术有限责任公司 发泡过氧化物改性的线性低密度聚乙烯组合物和用于制备其发泡组合物的方法
MX2019008024A (es) 2017-01-05 2019-09-11 Gen Cable Technologies Corp Polimeros de polietileno lineales de baja densidad adecuados para su uso en cables.

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2508047B1 (fr) * 1981-06-22 1985-10-11 Bp Chimie Sa Procede de traitement de polyethylene de basse densite lineaire par des peroxydes organiques, generateurs de radicaux libres
JPS5871904A (ja) * 1981-10-23 1983-04-28 Asahi Chem Ind Co Ltd 変性エチレン−αオレフィン共重合体の製造方法

Also Published As

Publication number Publication date
FR2562546B1 (fr) 1987-01-23
PT80248A (en) 1985-05-01
FR2562546A1 (fr) 1985-10-11
ES542062A0 (es) 1986-10-16
PT80248B (en) 1987-02-03
JPS61501782A (ja) 1986-08-21
EP0161774A1 (en) 1985-11-21
WO1985004664A1 (en) 1985-10-24

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