Continuous preparation of modified polyacetal resins, useful e.g. in electrical parts, comprises mass polymerization of e.g. trioxane and chain-transmission reaction activating polymers in presence of cationic polymerization catalyst

摘要

Continuous preparation of modified polyacetal resins, comprises continuous mass polymerization of trioxane (a), cyclic- ether/-formal compounds (b) and chain-transmission reaction activating polymers (c) with hydroxyl group, in a reactor, in the presence of cationic polymerization catalysts, where part/total quantity of (c) is dissolved first and mixed with part/total quantity of (a) and/or (b) and then the mixture is polymerized in reactor.