US PATENT SUBCLASS 530 / 231
.~.~ Nitrogen containing material used in the process, or product thereof


Current as of: June, 1999
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530 /   HD   CHEMISTRY: NATURAL RESINS OR DERIVATIVES; PEPTIDES OR PROTEINS; LIGNINS OR REACTION PRODUCTS THEREOF

200  DF  NATURAL RESINS OR DERIVATIVES (E.G., WOOD OR PINE TAR; CATIVO RESIN DERIVATIVES, ETC.) {6}
230  DF  .~ Tall oil or derivative used as starting material in process, or product thereof (e.g., metal salts of tall oil fatty acids; tall oil pitch, etc.) dehydrogenated, or isomerized rosin; etc.) {3}
231.~.~ Nitrogen containing material used in the process, or product thereof


DEFINITION

Classification: 530/231

(under subclass 230) Processes which utilize a nitrogen containing material, or products of such processes.