US PATENT SUBCLASS 516 / 107
.~.~.~.~ The compound is gum or derivative thereof

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}
107.~.~.~.~ The compound is gum or derivative thereof

DEFINITION

Classification: 516/107

The compound is gum or derivative thereof:

(under subclass 104) Subject matter in which the carbohydrate* is gum or a derivative thereof.

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

(2) Note. The term gum has acquired multiple meanings which are chemically unrelated to each other. The subject matter encompassed herein is that of the carbohydrate polymers occurring as exudates of various trees, shrubs, or algae. Examples include, guar, arabic, tragacanth, karaya. The gum may be natural or synthetic.