US PATENT SUBCLASS 530 / 227
.~.~.~ Metal, halogen, or silicon containing material used in the process, or product thereof (e.g., using clay, zeolites, etc.)


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}
210  DF  .~ Rosin or derivative used as starting material in process, or product thereof (e.g., using gum rosin, wood rosin, solid tall oil rosin, etc.) {10}
226  DF  .~.~ Heat treatment of rosin or derivative in the absence of nonrosin organic reactants, or product thereof (e.g., forming rosin oil; disproportionated, dehydrogenated, or isomerized rosin; etc.) {1}
227.~.~.~ Metal, halogen, or silicon containing material used in the process, or product thereof (e.g., using clay, zeolites, etc.)


DEFINITION

Classification: 530/227

(under subclass 226) Processes wherein a metal, halogen or silicon containing material is utilized, or products of such processes.