GB1208120A - Ethylene polymerisation - Google Patents

Ethylene polymerisation

Info

Publication number
GB1208120A
GB1208120A GB5791067A GB5791067A GB1208120A GB 1208120 A GB1208120 A GB 1208120A GB 5791067 A GB5791067 A GB 5791067A GB 5791067 A GB5791067 A GB 5791067A GB 1208120 A GB1208120 A GB 1208120A
Authority
GB
United Kingdom
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
GB5791067A
Inventor
Dennis George Harold Ballard
Till Medinger
William George Oakes
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
Priority to GB5791067A priority Critical patent/GB1208120A/en
Priority to NL6901412A priority patent/NL6901412A/xx
Priority to BE727706D priority patent/BE727706A/xx
Priority to DE19691904878 priority patent/DE1904878A1/en
Priority to ES363200A priority patent/ES363200A1/en
Publication of GB1208120A publication Critical patent/GB1208120A/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

1,208,120. Continuous ethylene polymerization in at least two zones. IMPERIAL CHEMICAL INDUSTRIES Ltd. 17 Jan., 1969 [1 Feb., 1968], No.57910/67. Heading C3P. 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.
GB5791067A 1968-02-01 1968-02-01 Ethylene polymerisation Expired GB1208120A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
GB5791067A GB1208120A (en) 1968-02-01 1968-02-01 Ethylene polymerisation
NL6901412A NL6901412A (en) 1968-02-01 1969-01-29
BE727706D BE727706A (en) 1968-02-01 1969-01-30
DE19691904878 DE1904878A1 (en) 1968-02-01 1969-01-31 Process for the continuous polymerization of ethylene
ES363200A ES363200A1 (en) 1968-02-01 1969-02-01 Ethylene polymerisation

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
GB1208120A true GB1208120A (en) 1970-10-07

Family

ID=10480343

Family Applications (1)

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

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2729103A1 (en) * 1976-06-29 1978-01-12 Sumitomo Chemical Co HIGH PRESSURE POLYAETHYLENE AND THE METHOD FOR MANUFACTURING IT
US4123600A (en) 1976-08-13 1978-10-31 Sumitomo Chemical Company, Limited Process for the high pressure production of polyethylene
US5648438A (en) * 1994-04-01 1997-07-15 Exxon Chemical Patents, Inc. Process for producing polymers with multimodal molecular weight distributions

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2729103A1 (en) * 1976-06-29 1978-01-12 Sumitomo Chemical Co HIGH PRESSURE POLYAETHYLENE AND THE METHOD FOR MANUFACTURING IT
US4123600A (en) 1976-08-13 1978-10-31 Sumitomo Chemical Company, Limited Process for the high pressure 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
DE1904878A1 (en) 1969-09-11
NL6901412A (en) 1969-08-05
BE727706A (en) 1969-07-30
ES363200A1 (en) 1970-12-01

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees