ES363200A1 - Ethylene polymerisation - Google Patents

Ethylene polymerisation

Info

Publication number
ES363200A1
ES363200A1 ES363200A ES363200A ES363200A1 ES 363200 A1 ES363200 A1 ES 363200A1 ES 363200 A ES363200 A ES 363200A ES 363200 A ES363200 A ES 363200A ES 363200 A1 ES363200 A1 ES 363200A1
Authority
ES
Spain
Prior art keywords
zone
allylic
allyl
temperature
zirconium
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
ES363200A
Other languages
Spanish (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.)
Imperial Chemical Industries Ltd
Original Assignee
Imperial Chemical Industries 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 Imperial Chemical Industries Ltd filed Critical Imperial Chemical Industries Ltd
Publication of ES363200A1 publication Critical patent/ES363200A1/en
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
    • C08F10/00—Homopolymers and copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond
    • 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
    • C08F110/00—Homopolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond
    • C08F110/02—Ethene

Landscapes

  • 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)
  • Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)

Abstract

Ethylene is continuously polymerized in two or more reaction zones, wherein a pressure of at least 1600 atmospheres is used in each zone, a temperature of at least 125 C. is used in the first zone, a #-allylic transition metal compound is used as catalyst in the first zone while a freeradical initiator is used in the second zone, and the temperature and pressure conditions are such that the reaction mixture exists as a single fluid phase in each zone. An organic halide may be added to the #-allylic compound and a chain transfer agent, e.g. hydrogen, may be present in either zone. #-Allylic compounds of zirconium are preferred and in the examples zirconium tetrakis #-allyl dissolved in isooctane or tetralin is used in the first zone and t-butylperbenzoate is used in the second zone, with allyl- or propargyl bromide.
ES363200A 1968-02-01 1969-02-01 Ethylene polymerisation Expired ES363200A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB5791067A GB1208120A (en) 1968-02-01 1968-02-01 Ethylene polymerisation

Publications (1)

Publication Number Publication Date
ES363200A1 true ES363200A1 (en) 1970-12-01

Family

ID=10480343

Family Applications (1)

Application Number Title Priority Date Filing Date
ES363200A Expired ES363200A1 (en) 1968-02-01 1969-02-01 Ethylene polymerisation

Country Status (5)

Country Link
BE (1) BE727706A (en)
DE (1) DE1904878A1 (en)
ES (1) ES363200A1 (en)
GB (1) GB1208120A (en)
NL (1) NL6901412A (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS532585A (en) * 1976-06-29 1978-01-11 Sumitomo Chem Co Ltd Preparation of polyethylene
JPS5322582A (en) 1976-08-13 1978-03-02 Sumitomo Chem Co Ltd Production of polyethylene
US5648438A (en) * 1994-04-01 1997-07-15 Exxon Chemical Patents, Inc. Process for producing polymers with multimodal molecular weight distributions

Also Published As

Publication number Publication date
GB1208120A (en) 1970-10-07
BE727706A (en) 1969-07-30
DE1904878A1 (en) 1969-09-11
NL6901412A (en) 1969-08-05

Similar Documents

Publication Publication Date Title
GB921636A (en) Polymerisation of propylene and catalysts therefor
ES380918A1 (en) Polymerization catalysts
ES394189A1 (en) Process for the polymerization of olefins and catalysts therefor
ES363200A1 (en) Ethylene polymerisation
ES375278A1 (en) Olefin polymerization
GB1115730A (en) Method of manufacturing polyethylene
ES394809A1 (en) Process for the polymerization of olefins and catalytic products
ES351273A1 (en) Ethylene polymerisation
ES424778A1 (en) Ethylene polymerisation
ES386497A1 (en) Process for polymerizing alpha-olefins
GB1249245A (en) Linear polymers of butadiene
GB1169309A (en) Low-Temperature Bulk Polymerization of Vinyl Chloride
ES312056A1 (en) A procedure to polymerize butadiene. (Machine-translation by Google Translate, not legally binding)
GB1213416A (en) A process for the polymerisation of ethylene
FR2099311A5 (en) Olefins polymsn catalyst - consisting of organoaluminium cpd and component prepd by reacting magnesium, monohalohydrocarbon an
ES291110A1 (en) Procedure for preparing copolymers of high molecular weight (Machine-translation by Google Translate, not legally binding)
GB1332859A (en) Olefin polymerisation
GB917387A (en) Process for the production of polyethylene
FR2116698A5 (en) Olefins polymsn catalyst - consisting of organoaluminium cpd and component prepd by reacting magnesium, monohalohydrocarbon an
GB1211371A (en) Polymerisation process
ES289155A1 (en) A procedure for preparing heteroblocol copolymers (Machine-translation by Google Translate, not legally binding)
GB1097653A (en) Polymerising propylene
GB1083005A (en) Production of polymers of ethylene
JPS5645910A (en) Polymerization of olefin
GB1225871A (en)