Ceramic greensheets

Claim 1

A COMPOSITION OF MATTER, ADAPTED TO THE FABRICATION OF ESSENTIALLY RECRYSTALLIZED CERAMIC PRODUCTS CONSISTING ESSENTIALLY, ON A DRY WEIGHT BASIS IN PERCENT BY WEIGHT, OF SOLIDS COHERED IN COMBINATION IN THE PROPORTIONS OF: (1) FROM ABOUT 70 TO ABOUT 92 PERCENT OF PARTICULATE NON-FIBROUS MATERIALS SMALLER IN INDIVIDUAL PARTICLE DIMENSION THAN 100 MESH CONSISTING ESSENTIALLY OF INORGANIC PARTICLES AND INCLUDING OPTIONALLY UP TO 10% OF SAID SOLIDS OF ELASTOMER LATEX PARTICLES AND (II) FROM ABOUT 30 TO ABOUT 8 PERCENT OF FIBROUS MATERIAL HAVING AN AVERAGE DIAMETER FROM ABOUT 0.2 TO ABOUT 10 MICRONS AND LENGTH UP TO ABOUT 1 CENTIMETER; AT LEAST A PORTION OF SAID FIBROUS MATERIAL BEING 5% OR MORE BY WEIGHT OF SAID SOLIDS OF GROUND OR MACERATED CELLULOSIC FIBERS; SAID SOLIDS BEING FURTHER CHARACTERIZED: (A) BY HAVING A CONTENT OF WATER-INSOLUBLE ORGANIC MATERIALS OF NOT MORE THAN ABOUT 30% BY WEIGHT CONSISTING ESSENTIALLY OF AT LEAST ONE OF (A) GROUND OR MACERATED CELLULOSIC FIBERS AND (B) ELASTOMER, (B) AT LEAST ONE OF SAID SOLIDS BEING HYDRATED IN CONTACT WITH WATER, (C) THE TOTAL INORGANIC CONTENT OF SAID SOLIDS BEING ELEMENTS OF VALENCE NO GREATER THAN FOUR HAVING IONIC RADII BELOW ABOUT 0.9 ANGSTROM UNITS AND COORDINATION NUMBER TO OXYGEN OF 4 TO 6 INCLASIVE, BEING SUMMARIZED WHEN CALCULATED AS OXIDES, BY THE VOLUME DESIGNATED ABCDEFGHI IN FIGURE 2 AND (D) SAID SOLIDS CONTAINING NO MORE THAN ABOUT 3 MOLE PERCENT, CALCULATED AS THE OXIDES, OF ALKALI AND ALKALINE EARTH ELEMENTS HAVING IONIC RADII ABOVE ABOUT 0.9 ANGSTROM UNITS.