Brominated polyformal prepn. - by reacting paraformaldehyde with tetrabromoxylylene glycol or its bis-hydroxyethylether

摘要

Polymeric formals fo formula (I) are new: (where p is 0 or 1; n is 2-200; R is an opt. halogen substd. 3-8C alkyl, or aryl or aralkyl mono- or disubstd. by alkyl or hydroxy-alkylether). Also claimed ae tetra-bromoxylylene bis(hydroxyethyl ether) and pentabromo-benzyl-beta-hydroxyethyl ether.