Method of preparing stable urea-formaldehyde suspension and product

Claim 1

A COMPOSITION COMPRISING A FLOWABLE MIXTURE OF SUBSTANTIALLY NCONDENSED UREA, FORMALDEHYDE, WATER AND A SUFFICIENT AMOUNT OF AN INORGNIC ALKALINE MATERIAL TO IMPART A PH OF BETWEEN ABOUT 10 AND 14 TO SAID MIXTURE, SAID MIXTURE HAVING A TEMPERATURE ABOVE 85*C. A UREA TO FORMALDEHYDE MOL RATIO OF BETWEEN ABOUT 1.3 AND 2.75 TO 1 AND CONTAINING NOT MORE THAN ABOUT 88% SOLIDS, SAID COMPOSITION BEING SUBSTANTIALLY STABLE FOR AT LEAST 30 DAYS.

Claim 3

A METHOD OF PREPARING A SUBSTANTIALLY STABLE SUSPENSION OF UREA AND FORMALDEHYDE WHICH IS A FLOWABLE MIXTURE AT AMBIENT TEMPERATURE FOR AT LEAST ABOUT 30 DAYS WHICH COMPRISES: PREPARING A FLOWABLE MIXTURE OF UREA, FORMALDEHYDE, WATER, AND A SUFFICIENT AMOUNT OF AN INORGANIC ALKALINE MATERIAL SO AS TO RAISE THE PH OF THE MIXTURE ABOVE 10, SAID MIXTURE HAVING A UREA TO FORMALDEHYDE MOL RATIO OF BETWEEN ABOUT 1.3 TO 1 AND 2.75 TO 1; MAINTAINING SAID MIXTURE AT A REACTION TEMPERATURE ABOVE ABOUT 85*C. FOR AT LEAST ABOUT 5 MINUTES, AND COOLING THE RESULTANT SUSPENSION TO ABOUT ROOM TEMPERATURE.

Claim 4

A METHOD OF PREPARING A SUBSTANTIALLY STABLE SUSPENSION OF UREA AND FORMALDEHYDE WHICH IS A FLOWABLE MIXTURE AT AMBIENT TEMPERATURE FOR AT LEAST ABOUT 30 DAYS WHICH COMPRISES: PREPARING A FLOWABLE MIXTURE OF UREA, FORMALDEHYDE, WATER, AND A SUFFICIENT AMOUNT OF AN INORGANIC ALKALINE MATERIAL SO AS TO RAISE THE PH OF THE MIXTURE ABOVE 10, SAID MIXTURE HAVING A UREA TO FORMALDEHYDE MOL RATIO OF BETWEEN ABOUT 1.3 TO 1 AND 2.75 TO 1; MAINTAINING SAID MIXTURE AT A REACTION TEMPERATURE ABOVE ABOUT 85*C. FOR AT LEAST ABOUT 5 MINUTES, AND COOLING THE RESULTANT SUSPENSION TO ABOUT ROOM TEMPERATURE.