GB1281932A - Process for improving polymerisation of ethylene - Google Patents

Process for improving polymerisation of ethylene

Info

Publication number
GB1281932A
GB1281932A GB5221669A GB5221669A GB1281932A GB 1281932 A GB1281932 A GB 1281932A GB 5221669 A GB5221669 A GB 5221669A GB 5221669 A GB5221669 A GB 5221669A GB 1281932 A GB1281932 A GB 1281932A
Authority
GB
United Kingdom
Prior art keywords
catalyst
lewis base
ethylene
group
linear polyethylene
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
GB5221669A
Inventor
Harry Jan Wristers
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.)
ExxonMobil Technology and Engineering Co
Original Assignee
Exxon Research and Engineering Co
Esso Research and Engineering Co
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 Exxon Research and Engineering Co, Esso Research and Engineering Co filed Critical Exxon Research and Engineering Co
Publication of GB1281932A publication Critical patent/GB1281932A/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
    • C08F10/02—Ethene
    • 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)
  • Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)

Abstract

1281932 Linear polyethylene ESSO RESEARCH & ENG CO 24 Oct 1969 [1 Nov 1968] 52216/69 Heading C3P Linear polyethylene is prepared by polymerizing ethylene in the presence of (1) a catalyst comprising (a) a preformed halide or oxyhalide salt of a transition metal of Groups IV-VI, in less than its maximum valence state, and (b) an organometallic compound of lead or of a Group I-III metal or of a hydride of a Group I-III metal; (2) a Lewis base as catalyst promoter; the catalyst having been contacted with an alpha-monoolefin having at least three carbon atoms and no chain branching on either vinylic carbon atom for a period of time sufficient to improve the catalyst's efficiency. The Lewis base may be a dialkyl ether or a tertiary amine. In examples, ethylene is polymerized in heptane, the catalyst being pretreated with propylene and comprising diethyl aluminium chloride and TiCl 3.1/3 AlCl 3 , the Lewis base being either tripropylamine or dibutyl ether.
GB5221669A 1968-11-01 1969-10-24 Process for improving polymerisation of ethylene Expired GB1281932A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US77280468A 1968-11-01 1968-11-01

Publications (1)

Publication Number Publication Date
GB1281932A true GB1281932A (en) 1972-07-19

Family

ID=25096282

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5221669A Expired GB1281932A (en) 1968-11-01 1969-10-24 Process for improving polymerisation of ethylene

Country Status (5)

Country Link
BE (1) BE741602A (en)
DE (1) DE1957815A1 (en)
FR (1) FR2022414A1 (en)
GB (1) GB1281932A (en)
NL (1) NL6918232A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4329440A (en) 1974-01-10 1982-05-11 Sumitomo Chemical Company, Limited Process for producing highly crystalline α-olefinic polymer

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
LU65954A1 (en) 1972-08-25 1974-03-07
JPS6025444B2 (en) * 1976-04-13 1985-06-18 三井東圧化学株式会社 Manufacturing method of low density polyethylene
GR63148B (en) * 1976-05-17 1979-09-25 Mitsui Toatsu Chemicals Process for the polymerization of ethylene of a-olefins and catalyst therefor
US4276400A (en) * 1977-09-28 1981-06-30 Eastman Kodak Company Olefin polymerization process using pretreated catalyst
WO1979000549A1 (en) * 1978-01-26 1979-08-23 Battelle Memorial Institute Polymerization of olefins,in the presence of a catalyst

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4329440A (en) 1974-01-10 1982-05-11 Sumitomo Chemical Company, Limited Process for producing highly crystalline α-olefinic polymer

Also Published As

Publication number Publication date
FR2022414A1 (en) 1970-07-31
DE1957815A1 (en) 1971-05-27
NL6918232A (en) 1971-06-08
BE741602A (en) 1970-05-13

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Legal Events

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