GB1226167A - - Google Patents

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Publication number
GB1226167A
GB1226167A GB1226167DA GB1226167A GB 1226167 A GB1226167 A GB 1226167A GB 1226167D A GB1226167D A GB 1226167DA GB 1226167 A GB1226167 A GB 1226167A
Authority
GB
United Kingdom
Prior art keywords
atmospheres
ethylene
vinyl acetate
total monomer
butyraldehyde
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
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 filed Critical
Publication of GB1226167A publication Critical patent/GB1226167A/en
Expired legal-status Critical Current

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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)
  • Polymerisation Methods In General (AREA)

Abstract

1,226,167. Ethylene-vinyl acetate copolymers. MONSANTO CHEMICALS Ltd. 24 Sept., 1969 [7 Nov., 1968], No. 52808/68. Heading C3P. Ethylene and up to 20% by weight (based on the total monomer) of vinyl acetate are copolymerized in the presence of propionaldehyde as modifier in a molar proportion of 0À1 to 0À5% based on the total monomer, at a temperature from 120‹ to 300‹ C. and at a pressure from 1,500 atmospheres to 2,300 atmospheres. The polymerization is preferably carried out in a tubular reactor having a length to diameter ratio of from 500 to 1 to 10,000 to 1. Comparative experiments using propane, acetaldehyde and butyraldehyde as chain transfer agents are described. The initiator used in the example is oxygen.
GB1226167D 1968-11-07 1968-11-07 Expired GB1226167A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB5280868 1968-11-07

Publications (1)

Publication Number Publication Date
GB1226167A true GB1226167A (en) 1971-03-24

Family

ID=10465395

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1226167D Expired GB1226167A (en) 1968-11-07 1968-11-07

Country Status (2)

Country Link
DE (1) DE1955471B2 (en)
GB (1) GB1226167A (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50127987A (en) * 1974-03-29 1975-10-08
EP0082502B1 (en) * 1981-12-19 1987-03-18 Ruhrchemie Aktiengesellschaft Use of ethylene copolymers for heavy goods bags or shrink foils, heavy goods bags made thereof and process for the manufacture of the ethylene copolymers
EP0348200A3 (en) * 1988-06-22 1990-07-25 Exxon Chemical Patents Inc. Modified ethylene copolymers for use adhesives
US10961333B2 (en) * 2017-12-18 2021-03-30 Lg Chem, Ltd. Ethylene vinyl acetate copolymer and method of preparing the same

Also Published As

Publication number Publication date
DE1955471B2 (en) 1973-12-20
DE1955471A1 (en) 1970-12-03

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Legal Events

Date Code Title Description
PS Patent sealed
PLE Entries relating assignments, transmissions, licences in the register of patents
PCNP Patent ceased through non-payment of renewal fee