US PATENT SUBCLASS 501 / 85
.~.~ By volatilizing or heat expansion of water or other noncombustible material

Current as of: June, 1999
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501 /   HD   COMPOSITIONS: CERAMIC

1  DF  CERAMIC COMPOSITIONS {15}
80  DF  .~ Pore-forming {3}
85.~.~ By volatilizing or heat expansion of water or other noncombustible material

DEFINITION

Classification: 501/85

By volatilizing or heat expansion of water or other noncombustible material:

(under subclass 80) Processes wherein porosity results from volatilization or expansion caused by heating of water or other noncombustible material contained in the composition, and compositions to be used in such processes.