US PATENT SUBCLASS 162 / 75
.~.~.~ Fat, fatty oil or higher fatty acid

Current as of: June, 1999
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162 /   HD   PAPER MAKING AND FIBER LIBERATION

1  DF  PROCESSES OF CHEMICAL LIBERATION, RECOVERY OR PURIFICATION OF NATURAL CELLULOSE OR FIBROUS MATERIAL {33}
70  DF  .~ Treatment with particular chemical {9}
72  DF  .~.~ Organic {5}
75.~.~.~ Fat, fatty oil or higher fatty acid

DEFINITION

Classification: 162/75

(under subclass 72) Processes in which a fat, fatty oil or a higher fatty acid is employed.

(1) Note. By "fats" and "fatty oils" is meant the glycerides of higher fatty acids, including naturally occurring mixtures thereof present in a single oil or fat. By "higher fatty acid" is meant a carboxylic acid containing

an unbroken chain of at least 7 carbon atoms bonded to a carboxyl group, e.g., lauric, palmatic, stearic, oleic, ricinoleic, linoleic, and behenolic. Where there are several unbroken chains of carbon atoms bonded to the carboxyl group, one of the chains must contain at least 7 carbon atoms. Included in this subclass also are salts, amides, esters and anhydrides of such acids.