Polymerization of gaseous, monomeric formaldehyde

Gaseous formaldehyde together with an inert medium comprising a vapour of an inert organic solvent and/or an aerosol of an inert organic solvent is passed through a feed system, the inert medium having a temperature of +70 to +160 DEG C., the mixing ratio of weight between formaldehyde and inert med...

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Bibliographic Details
Main Authors WOLZ HERMANN, WAGNER KUNO, KLINKMANN KURT
Format Patent
LanguageEnglish
Published 10.01.1967
Subjects
CHEMISTRY
COMPOSITIONS BASED THEREON
MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
METALLURGY
ORGANIC MACROMOLECULAR COMPOUNDS
THEIR PREPARATION OR CHEMICAL WORKING-UP
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Summary:Gaseous formaldehyde together with an inert medium comprising a vapour of an inert organic solvent and/or an aerosol of an inert organic solvent is passed through a feed system, the inert medium having a temperature of +70 to +160 DEG C., the mixing ratio of weight between formaldehyde and inert medium being in the range of 1:0.7 to 1:2 and polymerizing the formaldehyde in the polymerization medium at 0 DEG to +90 DEG C. Specified inert media are cyclohexane, was benzine fraction, and a hydrocarbon mixture of 12 to 18 carbon atoms, toluene, benzene, chlorobenzene, ethylacetate, diisopropyl ether, formaldehyde dibenzyl acetal and many others. Specification 943,177 is referred to.
Bibliography:Application Number: US19630285569