GB926894A - Olefin polymerization process - Google Patents

Olefin polymerization process

Info

Publication number
GB926894A
GB926894A GB35867/61A GB3586761A GB926894A GB 926894 A GB926894 A GB 926894A GB 35867/61 A GB35867/61 A GB 35867/61A GB 3586761 A GB3586761 A GB 3586761A GB 926894 A GB926894 A GB 926894A
Authority
GB
United Kingdom
Prior art keywords
diluent
polymer
temperature
olefin
pentene
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
GB35867/61A
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.)
Phillips Petroleum Co
Original Assignee
Phillips Petroleum 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 Phillips Petroleum Co filed Critical Phillips Petroleum Co
Publication of GB926894A publication Critical patent/GB926894A/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

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)

Abstract

Polymers of ethylene, and copolymers of ethylene and another 1-olefin, are made by first contacting the monomeric material with a chromium oxide polymerization catalyst in which at least a portion of the chromium is in the hexavalent state, in the presence of a liquid hydrocarbon diluent, and at a temperature below the temperature at which the polymer formed dissolves in the diluent, and secondly, contacting the particulate polymer and additional monomeric material to a further polymerization reaction at a temperature such that substantially all the polymer formed is soluble in the diluent, and recovering the polymer. The polymer and diluent are recovered by conventional methods. The 1-olefin may be propylene, 1-butene, isobutylene, 1-pentene, 1-hexene, 4-methyl-1-pentene, and 1-octene. The whole polymerization is preferably effected in a continuous manner by using a loop-shaped reactor, and a flow diagram of such a process is included in the Specification. Specification 790,195 is referred to.
GB35867/61A 1960-11-02 1961-10-05 Olefin polymerization process Expired GB926894A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US6675360A 1960-11-02 1960-11-02

Publications (1)

Publication Number Publication Date
GB926894A true GB926894A (en) 1963-05-22

Family

ID=22071467

Family Applications (1)

Application Number Title Priority Date Filing Date
GB35867/61A Expired GB926894A (en) 1960-11-02 1961-10-05 Olefin polymerization process

Country Status (4)

Country Link
BE (1) BE609750A (en)
ES (1) ES270951A1 (en)
FR (1) FR1304360A (en)
GB (1) GB926894A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0069593A2 (en) * 1981-07-07 1983-01-12 Mitsui Petrochemical Industries, Ltd. Polymerization process
JP2002241424A (en) * 2001-02-21 2002-08-28 Japan Polychem Corp Method for producing ethylene polymer
US9403921B2 (en) 2012-12-18 2016-08-02 Chevron Phillips Chemical Company, Lp Chain transfer agent removal between polyolefin polymerization reactors

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0069593A2 (en) * 1981-07-07 1983-01-12 Mitsui Petrochemical Industries, Ltd. Polymerization process
EP0069593A3 (en) * 1981-07-07 1983-09-21 Mitsui Petrochemical Industries, Ltd. Polymerization process
JP2002241424A (en) * 2001-02-21 2002-08-28 Japan Polychem Corp Method for producing ethylene polymer
US9403921B2 (en) 2012-12-18 2016-08-02 Chevron Phillips Chemical Company, Lp Chain transfer agent removal between polyolefin polymerization reactors
US9556288B2 (en) 2012-12-18 2017-01-31 Chevron Phillips Chemical Company, Lp Chain transfer agent removal between polyolefin polymerization reactors

Also Published As

Publication number Publication date
BE609750A (en)
FR1304360A (en) 1962-09-21
ES270951A1 (en) 1962-01-16

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