Production of inorganic fibers

Claim 1

A PROCESS FOR MAKING INORGANIC FIBERS FROM A LIQUID MEDIUM COMPRISING DRY SPINNING INTO AN EVAPORATIVE ENVIRONMENT A SOLUTION OR SOL CONTAINING ONE OR MORE INORGANIC FIBER FORMING COMPOUNDS SELECTED FROM THE GROUP CONSISTING OF NITRATES, SULFATES, ACETATES, OXALATES, FORMATES, TARTRATES, AND CITRATES CHLORIDES AND OXYCHLORIDES, OR SOLS SELECTED FROM THE GROUP CONSISTING OF HYDROXIDE SOLS, OXIDE SOLS, PHOSPHATE SOLS, SILICATE SOLS, BORATE SOLS, TUNGSTATE SOLS AND MOLYBDATE SOLS, WHICH UPON HEATING YIELD AN OXIDE OR CARBIDE, OF AT LEAST ONE ELEMENT SELECTED FROM THE GROUP CONSISTING OF BE, MG, CA, SR, BA, RARE EARTHS, TH, U, TI, ZR, HF, V, NB, TA, CR, MO, W, MN, FE, CO, NI, ZN, B, AL, GA, SI, GE, SN, LI, NA, K, RB, CS, RE, RU, OS, IR, PT, RH, PD, CU, AG, AU, CD, IN, TL, PB, P, AS, SB, BI, S, SE AND TE, SAID COMPOUNDS BEING PRESENT IN A CONCENTRATION OF ABOUT 5 PERCENT TO ABOUT 60 PERCENT BY WEIGHT, EXPRESSED AS AN OXIDE, AND 0.01 TO 5 PERCENT BY WEIGHT OF A LINEAR POLYMERIC FIBER-FORMING MATERIAL HAVING A DEGREE OF POLYMERIZATION OF AT LEAST ABOUT 2000 SELECTED FROM THE GROUP CONSISTING OF OLEFIN AND DIOLEFIN POLYMERS AND COPOLYMERS, POLYETHERS, POLYPHOSPHATES, KURROL SALTS, POLYMERS AND COPOLYMERS OF ACRYLAMIDE, METHACRYLAMIDE, METHACRYLMETHACRYLATE, ACRYLONITRILE, ACRYLIC ACID, METHACRYLIC ACID AND THEIR SALTS POLYVINYLACETATE, POLYVINYLALCOHOL, POLYVINYLMETHYLETHER AND COPOLYMERS WITH MALEIC ACID AND THEIR SALTS, THE DEGREE OF POLYMERIZATION AND THE AMOUNT OF SAID POLYMERIC FIBER FORMING MATERIAL BEING SELECTED TO PRODUCE A LIQUID MEDIUM HAVING A VISCOSITY OF 1-100 POISE AND A DEGREE OF SPINNABILITY OF AT LEAST 50 CM, AND HEATING THE DRY SPUN FIBERS TO A TEMPERATURE SUFFICIENTLY HIGH TO CONVERT SAID INORGANIC FIBER FORMING COMPOUND TO AN OXIDE OR CARBIDE.