GB1032922A - Polymerization of formaldehyde - Google Patents

Polymerization of formaldehyde

Info

Publication number
GB1032922A
GB1032922A GB379263A GB379263A GB1032922A GB 1032922 A GB1032922 A GB 1032922A GB 379263 A GB379263 A GB 379263A GB 379263 A GB379263 A GB 379263A GB 1032922 A GB1032922 A GB 1032922A
Authority
GB
United Kingdom
Prior art keywords
formaldehyde
vapour
polymerization
salts
acetone
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
GB379263A
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.)
Celanese Corp
Original Assignee
Celanese Corp
Celanese Corp of America
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 Celanese Corp, Celanese Corp of America filed Critical Celanese Corp
Publication of GB1032922A publication Critical patent/GB1032922A/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
    • C08G2/08—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)
  • Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
  • Polyoxymethylene Polymers And Polymers With Carbon-To-Carbon Bonds (AREA)
  • Catalysts (AREA)

Abstract

Formaldehyde is polymerized by contacting its vapour with acetone in liquid form together with a formaldehyde polymerization catalyst. The liquid may be vigorously agitated, may be anhydrous or may contain up to 5% water. The formaldehyde vapour may be a mixture of anhydrous formaldehyde and an inert diluent or of formaldehyde and acetone. The catalyst may be formic or acetic acid, boron trifluoride, metal halides, metal salts of organic acids, tertiary amines, quaternary ammonium salts, quaternary phosphinium salts, phosphines, potassium hydroxide or carbon dioxide. The unpolymerized formaldehyde vapour may be vented and returned to the polymerization.
GB379263A 1962-09-25 1963-01-30 Polymerization of formaldehyde Expired GB1032922A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US22614162A 1962-09-25 1962-09-25

Publications (1)

Publication Number Publication Date
GB1032922A true GB1032922A (en) 1966-06-15

Family

ID=22847733

Family Applications (1)

Application Number Title Priority Date Filing Date
GB379263A Expired GB1032922A (en) 1962-09-25 1963-01-30 Polymerization of formaldehyde

Country Status (1)

Country Link
GB (1) GB1032922A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1867667A1 (en) * 2006-06-13 2007-12-19 Polyplastics Co., Ltd. Method for manufacturing stabilized polyacetal resin, stabilized polyacetal resin, stabilized polyacetal resin composition, and molded article of stabilized polyacetal resin

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1867667A1 (en) * 2006-06-13 2007-12-19 Polyplastics Co., Ltd. Method for manufacturing stabilized polyacetal resin, stabilized polyacetal resin, stabilized polyacetal resin composition, and molded article of stabilized polyacetal resin

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