Granular inorganic moldings and a process for production thereof

Details Granular inorganic moldings and a process for production thereof Granular inorganic moldings and a process for production thereof

1987-10-01

1989-12-26

Chaudhuri, Olik

Compositions: ceramic

Ceramic compositions

264 15, 264 41, 264 56, 264 57, C04B 3500

Patent

active

048898333

ABSTRACT:
Inorganic granules are characterized in that when the maximum extent of a granule is termed D and the dimension perpendicular to the maximum extent has a maximum extent termed A, A/D is 0.5 to 0.9; and in at least 80% of the granules, the position of A crossing with D is within 0.3D on either side of the center of D. Such granules can be obtained in a high yield by introducing inorganic powders capable of calcination into an organic porous body having a 3-dimensional net-like structure and subjecting the porous body to isotropic pressing thereby to form inorganic granules in pores of the porous body. The organic porous body is then burned off and at the same time, the inorganic granules are calcined. The inorganic granules are useful as bone fillers and the like.

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