GB1083005A - Production of polymers of ethylene - Google Patents

Production of polymers of ethylene

Info

Publication number
GB1083005A
GB1083005A GB4522564A GB4522564A GB1083005A GB 1083005 A GB1083005 A GB 1083005A GB 4522564 A GB4522564 A GB 4522564A GB 4522564 A GB4522564 A GB 4522564A GB 1083005 A GB1083005 A GB 1083005A
Authority
GB
United Kingdom
Prior art keywords
ethylene
pressure
reaction zone
zone
polymers
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
GB4522564A
Inventor
N Hardwicke
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.)
Monsanto Co
Original Assignee
Monsanto 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 Monsanto Co filed Critical Monsanto Co
Publication of GB1083005A publication Critical patent/GB1083005A/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
    • C08F110/00—Homopolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond
    • C08F110/02—Ethene

Abstract

Polymers of ethylene are obtained by polymerizing ethylene or a mixture of ethylene and an ethylenically unsaturated monomer copolymerizable therewith in a first polymerization zone at an elevated pressure and elevated temperature and in the presence of a free radical initiator to produce an effluent containing ethylene and at least one polymer of ethylene, reducing the pressure in said effluent and further polymerizing ethylene present therein in a second polymerization zone at a lower pressure than that maintained in said first zone and at an elevated temperature in the presence of a free radical initiator. Preferably the pressure in the second reaction zone is at least 3000 p.s.i. lower than that in the first reaction zone. The initiator used in the first reaction zone is oxygen and that in the second reaction zone is a peroxygen compound.
GB4522564A 1963-11-05 1964-11-05 Production of polymers of ethylene Expired GB1083005A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US32147663A 1963-11-05 1963-11-05

Publications (1)

Publication Number Publication Date
GB1083005A true GB1083005A (en) 1967-09-13

Family

ID=23250746

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4522564A Expired GB1083005A (en) 1963-11-05 1964-11-05 Production of polymers of ethylene

Country Status (6)

Country Link
BE (1) BE655322A (en)
DE (1) DE1570920A1 (en)
FR (1) FR1417413A (en)
GB (1) GB1083005A (en)
NL (1) NL6412826A (en)
SE (1) SE325130B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4913633B1 (en) * 1967-02-09 1974-04-02

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5322582A (en) * 1976-08-13 1978-03-02 Sumitomo Chem Co Ltd Production of polyethylene
DE10128221A1 (en) * 2001-06-11 2002-12-19 Basell Polyolefine Gmbh Preparation of ethylene homo- and copolymers by radical polymerization in the presence of molecular weight regulator and chain starter with increased heat transfer efficiency and yield by temperature control

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4913633B1 (en) * 1967-02-09 1974-04-02

Also Published As

Publication number Publication date
SE325130B (en) 1970-06-22
BE655322A (en) 1965-05-05
NL6412826A (en) 1965-05-06
FR1417413A (en) 1965-11-12
DE1570920A1 (en) 1970-02-26

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