US PATENT SUBCLASS 516 / 112
.~ The solid phase contains alumina (e.g., hydrated alumina-gel)

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

Internet Version by PATENTEC © 1999      Terms of Use


516 /   HD   COLLOID SYSTEMS AND WETTING AGENTS; SUBCOMBINATIONS THEREOF; PROCESSES OF

98  DF  CONTINUOUS OR SEMICONTINUOUS SOLID PHASE (I.E., SYSTEMS WHICH EXHIBIT PLASTICITY, ELASTICITY, OR RIGIDITY): COLLOID SYSTEMS; COMPOSITIONS CONTAINING AN AGENT FOR MAKING OR STABILIZING COLLOID SYSTEMS; PROCESSES OF MAKING OR STABILIZING COLLOID SYSTEMS; PROCESSES OF PREPARING THE COMPOSITIONS (E.G., GEL, PASTE, GELLED EMULSION, FLOC) {4}
112.~ The solid phase contains alumina (e.g., hydrated alumina-gel)

DEFINITION

Classification: 516/112

The solid phase contains alumina (e.g., hydrated alumina-gel):

(under subclass 98) Subject matter in which the solid phase contains alumina, such as, hydrated alumina-gel.

SEE OR SEARCH THIS CLASS, SUBCLASS:

99+, for colloid systems in which the solid phase contains organic* material*, alone or in combination with alumina.

SEE OR SEARCH CLASS

65, Glass Manufacturing,

17.2, for processes of working or treating glass which includes a sol-gel route or liquid phase route procedure during any stage of working or treating glass.

501, Compositions: Ceramic, 12, for glass or glass forming compositions which are made by a gel route.

502, Catalyst, Solid Sorbent, or Support Therefor: Product or Process of Making,

233+, for forming a catalyst or precursor comprising forming silica gel (i.e., an amorphous form of hydrate silica, generally produced by precipitation or coagulation of a silica sol or decomposition of a silicate), subclass 405 for solid sorbent comprising inorganic gel composition, in which there is usually a metal or silicon oxide in relatively minor amount is distributed in suspension in water, appearing to be solid while the water constitutes as much as 95 to 99% of the mixture.