US PATENT SUBCLASS 423 / 327.2
.~.~.~.~ Mullite

Current as of: June, 1999
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423 /   HD   CHEMISTRY OF INORGANIC COMPOUNDS

324  DF  SILICON OR COMPOUND THEREOF {4}
325  DF  .~ Oxygen containing {2}
326  DF  .~.~ Metal containing (i.e., silicate) {3}
327.1  DF  .~.~.~ Aluminum containing {2}
327.2.~.~.~.~ Mullite

DEFINITION

Classification: 423/327.2

Mullite:

(under subclass 327.1) Products and processes in which the product is mullite (i.e., 3Al2[end subscrpt]O3 2SiO2[end subscrpt]).