US PATENT SUBCLASS 516 / 106
.~.~.~.~ The compound is cellulose or derivative thereof (e.g., CMC)

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}
104  DF  .~.~ The organic material contains organic compound containing oxygen {3}
105  DF  .~.~.~ The compound is a carbohydrate* or carbohydrate-derivative* (e.g., mono- or polysaccharide) {2}
106.~.~.~.~ The compound is cellulose or derivative thereof (e.g., CMC)

DEFINITION

Classification: 516/106

The compound is cellulose or derivative thereof (e.g., CMC):

(under subclass 104) Subject matter in which the carbohydrate* is cellulose or a derivative thereof, such as, carboxymethylcellulose (CMC).

(1) Note. The cellulose may be derivatized so long as it satisfies the requirement for carbohydrate-derivative*.