US PATENT SUBCLASS 502 / 236
.~.~.~.~ Group IV metal, metal oxide, or metal hydroxide, (i.e., Ti, Zr, Hf, Ge, Sn or Pb)

Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999      Terms of Use


502 /   HD   CATALYST, SOLID SORBENT, OR SUPPORT THEREFOR: PRODUCT OR PROCESS OF MAKING

100  DF  CATALYST OR PRECURSOR THEREFOR {12}
232  DF  .~ Silicon containing or process of making {2}
233  DF  .~.~ Forming silica gel {2}
234  DF  .~.~.~ Coprecipitating {2}
236.~.~.~.~ Group IV metal, metal oxide, or metal hydroxide, (i.e., Ti, Zr, Hf, Ge, Sn or Pb)

DEFINITION

Classification: 502/236

Group IV metal, metal oxide, or metal hydroxide (i.e., Ti, Zr, Hf, Ge, Sn, Pb):

(under subclass 234) Process which includes the precipitation of a Group IV metal, metal oxide or hydroxide simultaneously with precipitation of the silica gel.

SEE OR SEARCH THIS CLASS, SUBCLASS:

242, for a catalyst which is a mixture of silica gel and a group IV metal, metal oxide or hydroxide.