POLYFORMALS AND POLYETHERFORMALS AND METHOD FOR THEIR PREPARING Russian patent published in 2004 - IPC

FIELD: organic chemistry, chemical technology. SUBSTANCE: invention relates to polyformals and poly- Etherformals of the general formula: wherein M is a bridge group (CH₂; -O-; -O-Ar-C- CH₃-Ar-O-); R means methyl or phenyl; Ar means phenyl with viscosity values 0.46-0.61 dl/g. Also, invention relates to method for preparing polyformals and polyetherformals. Invention provides preparing new polyformals and polyetherformals used for preparing film-forming polymers and eliciting the improved solubility. EFFECT: improved preparing method, enhanced and valuable properties of compounds. 3 cl, 4 ex