GB934138A - Process for polymerising formaldehyde - Google Patents

Process for polymerising formaldehyde

Info

Publication number
GB934138A
GB934138A GB2255362A GB2255362A GB934138A GB 934138 A GB934138 A GB 934138A GB 2255362 A GB2255362 A GB 2255362A GB 2255362 A GB2255362 A GB 2255362A GB 934138 A GB934138 A GB 934138A
Authority
GB
United Kingdom
Prior art keywords
formaldehyde
hexamine
polymerising
anhydrous
etherified
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
GB2255362A
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.)
Montedison SpA
Original Assignee
Montedison SpA
Montecatini Societa Generale per lIndustria Mineraria e Chimica SpA
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 Montedison SpA, Montecatini Societa Generale per lIndustria Mineraria e Chimica SpA filed Critical Montedison SpA
Publication of GB934138A publication Critical patent/GB934138A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G2/00—Addition polymers of aldehydes or cyclic oligomers thereof or of ketones; Addition copolymers thereof with less than 50 molar percent of other substances
    • C08G2/06—Catalysts
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G2/00—Addition polymers of aldehydes or cyclic oligomers thereof or of ketones; Addition copolymers thereof with less than 50 molar percent of other substances
    • C08G2/08—Polymerisation of formaldehyde

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Polyoxymethylene Polymers And Polymers With Carbon-To-Carbon Bonds (AREA)

Abstract

Anhydrous formaldehyde is polymerized in an inert anhydrous organic solvent at -20 DEG to +70 DEG C., using hexamine as catalyst. Specified solvents are toluene, other hydrocarbons, esters and cyclic or acyclic ethers. The hexamine may be added batchwise or in a single stage in the solid state or in solution. It is preferred to add gaseous formaldehyde and the polyoxymethylene product may be acylated or etherified.
GB2255362A 1961-06-15 1962-06-12 Process for polymerising formaldehyde Expired GB934138A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT1105561 1961-06-15

Publications (1)

Publication Number Publication Date
GB934138A true GB934138A (en) 1963-08-14

Family

ID=11134724

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2255362A Expired GB934138A (en) 1961-06-15 1962-06-12 Process for polymerising formaldehyde

Country Status (3)

Country Link
BE (1) BE618941A (en)
GB (1) GB934138A (en)
NL (1) NL279302A (en)

Also Published As

Publication number Publication date
NL279302A (en)
BE618941A (en) 1962-12-14

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