US PATENT SUBCLASS 516 / 101
.~.~.~ The organic material contains organic compound containing nitrogen, except if present solely as NH4+

Current as of: June, 1999
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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}
99  DF  .~ The solid phase contains organic material {3}
100  DF  .~.~ The organic material coats, impregnates, or surface modifies solid inorganic material (e.g., dextrin modified clay) {1}
101.~.~.~ The organic material contains organic compound containing nitrogen, except if present solely as NH4+

DEFINITION

Classification: 516/101

The organic material contains organic compound containing nitrogen, except if present solely as NH 4+ :

(under subclass 100) Subject matter in which the organic* material* contains an organic* compound which contains nitrogen, except for when the nitrogen is present solely as the cationic ammonium group, NH 4+

(1) Note. Materials* used as agents* which are impurely or crudely derived from plant or animal sources, are assumed to contain nitrogen-containing organic* compounds (i.e., the DNA and proteins), unless clearly separated out, such as cellulose, carbohydrate fractions, etc.

SEE OR SEARCH THIS CLASS, SUBCLASS:

98, for colloid systems of continuous or semicontinuous solid phase which does not have organic* material* in the solid phase, and also is of a solid material* not provided for in subclasses 110, 111, or 112.

102+, for colloid systems in which the solid phase contains an organic* compound which contains Nitrogen (except if present solely as NH 4+), which doesn't coat, impregnate, or surface modify an inorganic* material*.

110, for colloid systems of continuous or semicontinuous solid phase in which the solid phase contains metal silicate or clay and which does not have organic* material* in the solid phase.

111, for colloid systems of continuous or semicontinuous solid phase in which the solid phase contains silica and

which does not have organic* material* in the solid phase. 112, for colloid systems of continuous or semicontinuous solid phase in which the solid phase contains alumina and which does not have organic* material* in the solid phase.