Process for the production of high molecular weight polyoxymethylenes

• Main Authors: KOCHER ERNST-ULRICH, WAGNER KUNO
• Format: Patent
• Language: English
• Published: 28.03.1967
• 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

Formaldehyde is polymerized in the presence of a tin compound of formulae <FORM:1006786/C3/1> where R is an organic carboxylic acid radical, a dithiocarbarminic acid radical, a hydroxyl radical, a mercapto radical, a cyanide radical, a thio-cyanate radical or a cyanate radical, X is hydrogen o...