Use of fluorinated diphenylolmethane derivatives for preparing heat-resistant elastic polyurethanes

Fluorinated diphenylolmethane derivatives were used for the first time as chain extenders in urethane formation reactions in preparation of elastic materials. Fluorinated diphenylolmethane derivatives exhibit positive surface activity. Owing to this fact and to the presence of reactive hydroxy groups, these derivatives allow preparation of fluorinated polyurethane materials with enhanced resistance to heat and aggressive media.