Process of forming a dispersion of particles of controlled size

Claim 1

THE PROCESS OF FORMING A DISPERSION OF PARTICLES OF CLOSELY CONTROLLED SIZE WHICH COMPRISES SUBJECTING A COMPOSITION COMPRISING A MATERIAL FOR TREATING FIBERS AND A VOLATILE LIQUID HAVING A BOILING POINT NOT IN EXCESS OF THE BOILING POINT OF WATER TO A LOW PRESSURE NOT SUBSTANTIALLY EXCEDDING ABOUT 15 POUNDS PER SQSUARE INCH AND A RELATIVELY HIGH, CLOSELY CONTROLLED TEMPERATURE OF FROM ABOUT 200*F. TO ABOUT 1000*F. ABOVE THE BOILING POINT OF WATER TO VOLATILIZE AT LEAST A SUBSTANTIAL PORTION OF SAID VOLATILE LIQUID, SAID MATERIAL FOR TREATING FIBERS BEING NON-VOLATILE AT THE VOLATILIZATION TEMPERATURE OF SAID VOLATILE LIQUID, FURTHER HEATING THE MATERIAL FOR TREATING FIBERS AT SUBSTANTIALLY THE SAME RELATIVELY HIGH, CLOSELY CONTROLLED TEMPERATURE TO DIPERSE THE SAME IN THE VOLATILIZED LIQUID, AND MAINTAINING SAID TEMPERATURE AND AVOIDING ANY ABRUPT CHANGE IN PRESSURE UNTIL THE VOLATILIZED LIQUID AND DISPERSED MATERIAL THEREIN ARE SUDDENLY COOLED AND DILUTED BY A GAS AT A TEMPERATURE ABOVE THE DEW POINT OF SAID GAS WITH RESPECT TO SAID LIQUID TO PRODUCE THE DISPEERSION OF PARTICLES OF CLOSELY CONTROLLED SIZE.