GB1352034A - Catalytic polymerization - Google Patents

Catalytic polymerization

Info

Publication number
GB1352034A
GB1352034A GB2520671A GB2520671A GB1352034A GB 1352034 A GB1352034 A GB 1352034A GB 2520671 A GB2520671 A GB 2520671A GB 2520671 A GB2520671 A GB 2520671A GB 1352034 A GB1352034 A GB 1352034A
Authority
GB
United Kingdom
Prior art keywords
catalyst
diethyl
silanes
silane
activated
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
GB2520671A
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.)
Union Carbide Corp
Original Assignee
Union Carbide Corp
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 Union Carbide Corp filed Critical Union Carbide Corp
Publication of GB1352034A publication Critical patent/GB1352034A/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)
  • Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)

Abstract

1352034 Modified organochromium supported catalyst UNION CARBIDE CORP 19 April 1971 [25 March 1970 25 Jan 1971] 25206/71 Heading C3P An alpha olefin is polymerized in the presence of a catalyst comprising an activated inorganic oxide support carrying a bis-(cyclopentadienyl) chromium (II) compound (which may be substituted on the rings, although no specific substituted products are disclosed), the catalyst having a silane of the formula R 4-n H n or H 3 Si-[-SiH 2 -] m H, where m and n are 0 to 3 and R is C 1 -C 10 hydrocarbyl, associated therewith. Typical silanes are silane itself, diethyl-, butyl-, phenyl-, triethyl-, tetraethyl-, trihexyl- and methyl-diethyl-silanes. The support is activated by heat. The process may be carried out in a fluidized bed reactor of known type including means for recycling via a heat exchanger; a diagrammatic representation thereof is provided in the Specification. Examples relate to ethylene homopolymerization or copolymerization with propylene or butene, optionally in the presence of hydrogen.
GB2520671A 1970-03-25 1971-04-19 Catalytic polymerization Expired GB1352034A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US2256170A 1970-03-25 1970-03-25
US10916871A 1971-01-25 1971-01-25

Publications (1)

Publication Number Publication Date
GB1352034A true GB1352034A (en) 1974-05-15

Family

ID=26696069

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2520671A Expired GB1352034A (en) 1970-03-25 1971-04-19 Catalytic polymerization

Country Status (5)

Country Link
JP (1) JPS4921433B1 (en)
BE (1) BE764752A (en)
CA (1) CA987448A (en)
GB (1) GB1352034A (en)
SE (1) SE386189B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5168273U (en) * 1974-11-22 1976-05-29

Also Published As

Publication number Publication date
JPS4921433B1 (en) 1974-05-31
CA987448A (en) 1976-04-13
DE2113965A1 (en) 1971-10-14
BE764752A (en) 1971-09-24
SE386189B (en) 1976-08-02
DE2113965B2 (en) 1976-08-19

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee