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GB639306A - Manufacture of solid polymers of ethylene - Google Patents

Manufacture of solid polymers of ethylene

Info

Publication number
GB639306A
GB639306A GB9466/48A GB946648A GB639306A GB 639306 A GB639306 A GB 639306A GB 9466/48 A GB9466/48 A GB 9466/48A GB 946648 A GB946648 A GB 946648A GB 639306 A GB639306 A GB 639306A
Authority
GB
United Kingdom
Prior art keywords
ethylene
solid polymers
manufacture
peroxide
compounds
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
GB9466/48A
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.)
EIDP Inc
Original Assignee
EI Du Pont de Nemours and 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 EI Du Pont de Nemours and Co filed Critical EI Du Pont de Nemours and Co
Publication of GB639306A publication Critical patent/GB639306A/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)
  • Polymerization Catalysts (AREA)

Abstract

Solid polymers of ethylene having a melting point between 125 DEG and 132 DEG C., preferably 127 DEG to 132 DEG C., and densities between 0.955 and 0.970, are prepared by subjecting ethylene to a pressure of 5000-20,000 atmospheres and a superatmospheric temperature, preferably 45-400 DEG C., in the presence of an ethylene polymerization catalyst other than a metal of Group II of the Periodic Table, preferred catalysts being azonitriles, organic peroxides and other peroxy compounds, amine oxides, hydrazines and hydrazinium compounds. Specific catalysts mentioned are 2,21-azobis-2,4-dimethyl-valeronitrile, 1,11 - azodicyclohexanecarbonitrile, ditertiary butyl prrphthalate, a ,a 1-azodiisobutyronitrile, benzoyl peroxide and di-(tertiary butyl) peroxide. The process is preferably operated in the presence of a solvent, which may be an aromatic, cycloaliphatic or paraffin hydrocarbon, or an alcohol; examples describe the use of benzene, iso-octane, tertiary butanol, ethanol and methanol.
GB9466/48A 1947-04-03 1948-04-05 Manufacture of solid polymers of ethylene Expired GB639306A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US639306XA 1947-04-03 1947-04-03

Publications (1)

Publication Number Publication Date
GB639306A true GB639306A (en) 1950-06-28

Family

ID=22052430

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9466/48A Expired GB639306A (en) 1947-04-03 1948-04-05 Manufacture of solid polymers of ethylene

Country Status (1)

Country Link
GB (1) GB639306A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1083052B (en) * 1956-06-12 1960-06-09 Eastman Kodak Co Process for the high pressure polymerization of ethylene
DE1092657B (en) * 1956-06-12 1960-11-10 Eastman Kodak Co Process for the high pressure polymerization of ethylene

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1083052B (en) * 1956-06-12 1960-06-09 Eastman Kodak Co Process for the high pressure polymerization of ethylene
DE1092657B (en) * 1956-06-12 1960-11-10 Eastman Kodak Co Process for the high pressure polymerization of ethylene

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