Process for the continuous polymerization or copolymerization of trioxane

US4412067A · kind A · utility

Assignee

• Degussa AG · DE

Inventors

• Herbert Amann · Hanau, DE
• Gerhard Morlock · Hanau, DE

Key dates

• Filing date: Dec 10, 1982
• Grant date: Oct 25, 1983
• Expiry date: Dec 10, 2002

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B01J2219/185
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

Trioxane homo-or copolymerizate is produced by continuously feeding the liquid starting material to be polymerized into a mixer in which there is present a powdered to granular oxymethylene homopolymer or copolymer which is fluidized to form a fluidized bed, the speed of feeding, catalyst concentration and polymerization temperature are coordinated to each other in suitable manner and after a polymerization reaction of at least 70 percent polymerizate is continuously or cyclically discharged from the mixer serving as reactor.