Procedure for obtaining n, n, n ', n'-tetraglycidyl-3,3'-dialkyl-4,4'-diaminodiphenylmethanes.

摘要

METHOD FOR PREPARING COMPOSITIONS OF FORMULA I WHERE R is glycidyl, YR SUB 1 YR SUB 3 independently are C SUB 1-C SUB 6 ALKYL YR SUB 2 YR SUB 4 independently are hydrogen or methyl, AND CHARACTERIZED IN THAT (i) of formula II DIAMIN it BECOMES EPICLORIDRIN in a ratio of 1:12 to 1:40 mol at a temperature of 80 to 115 C, WHERE R SUB 1, SUB 2 R, 3 R SUB YR Sub 4 have the same meaning ABOVE. (II) is added to a reaction mixture A CATALYST FASENTRANSFER, SUBMITTED TO EPICLORIDRIN to distillation CIRCULATION AND TAKES PLACE AT THE SAME TIME THE DEHIDROCLORIZACION TO ADD A solution of (ground) ALCALIHIDROXID AT THE SAME TIME It OCCURS THE sEPARATION OF DISTILLED AZEOTROP