WERKWIJZE TER BEREIDING VAN EEN VLOEIBAAR BRANDVERTRAGEND IMPREGNEERMIDDEL VOOR HOUT OF HOUTBEVATTENDE MATERIALEN EN WERKWIJZE VOOR HET IMPREGNEREN VAN HOUT OF HOUTBEVATTENDE MATERIALEN.

摘要

Synergistic fire retardants for wood and other cellulosic materials which are substantially non-hygroscopic and which do not require high curing temperatures in the material treated are formed of the partial reaction product of dicyandiamide, phosphoric acid, boric acid and water wherein the combined weight ratio of dicyandiamide and phosphoric acid to boric acid is from about 60 to about 40 to from about 90 to about 10.