公开(公告)号：US3705223A

公开(公告)日：1972-12-05

申请号：US3705223D

申请日：1971-07-28

Applicant: ALUMINUM CO OF AMERICA

Inventor： PEARSON ALAN ,  MARHANKA JOHN E

IPC: C04B35/622 ,  D01F9/08 ,  C04B33/18 ,  C04B35/10

CPC classification number: C04B35/62236 ,  C04B35/62231 ,  Y10S264/19

Abstract: USING DISPERSING AGENTS, SLIPS FORMED OF A VOLATILE FLUID AND CONTAINING 80 TO 90% OF DISCRETE ALPHA ALUMINA PARTICLES WITH A MEDIAN DIAMETER OF 0.3 TO 2.5 MICRONS AND HAVING A VISCOSITY ABOVE 5000 CENTIPOISE ARE MADE. THE SLIP IS THEN FORMED INTO THREADS IN AN EVAPORATIVE ENVIRONMENT TO CONCURRENTLY REMOVE A PORTION OR ALL OF THE LIQUID INGREDIENT THUS FORMING SELF SUPPORTING FIBERS WHICH ARE THEN SINTERED.