METHOD OF MODIFIED PHENOLAMINE RESIN PREPARING Russian patent published in 1994 - IPC

FIELD: polymeric compounds. SUBSTANCE: method of modified phenolamine resins preparing involves interaction of vat residue in phenol and acetone production by cumene method with hexamethylenetetramine and tall pitch at 150-250 C at the ratio vat residue:hexamethylenetetramine:tall pitch (80-40): (6-12): (14-48), respectively. Method is used for preparing of glueing agents in tire industry, adhesion additives in artificial leather manufacture and for utilization of waste in phenol and acetone production and waste in tall colophony production also. EFFECT: improved method of phenolamine resin preparing. 5 tbl