US PATENT SUBCLASS 530 / 226
.~.~ 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.)

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.~.~ 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  DF  .~.~.~> Metal, halogen, or silicon containing material used in the process, or product thereof (e.g., using clay, zeolites, etc.)

DEFINITION

Classification: 530/226

(under subclass 210) Processes wherein rosin or a derivative thereof is subjected to heat treatment in the absence of any additional nonrosin organic reactant, or products of such processes.

(1) Note. This subclass provides, among other things, for certain disproportionation reactions. See the search note below for a description of the disproportionation reaction.

SEE OR SEARCH THIS CLASS, SUBCLASS:

219, (2) Note for a description of the disproportionation reaction.