US PATENT SUBCLASS 524 / 78
.~.~.~ Residue of undetermined constitution derived from destructive distillation of a plant or animal source or plant or animal extract of undetermined constitution DNRM

Current as of: June, 1999
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524 /   HD   SYNTHETIC RESINS OR NATURAL RUBBERS -- PART OF THE CLASS 520 SERIES

*  DD  SYNTHETIC RESINS (Class 520, Subclass 1) {1}
*  DD  .~ PROCESSES OF PREPARING A DESIRED OR INTENTIONAL COMPOSITION OF AT LEAST ONE NONREACTANT MATERIAL AND AT LEAST ONE SOLID POLYMER OR SPECIFIED INTERMEDIATE CONDENSATION PRODUCT, OR PRODUCT THEREOF (Class 523, subclass 1) {17}
1  DF  .~.~ Adding a NRM to a preformed solid polymer or preformed specified intermediate condensation product, composition thereof; or process of treating or composition thereof {31}
78.~.~.~ Residue of undetermined constitution derived from destructive distillation of a plant or animal source or plant or animal extract of undetermined constitution DNRM

DEFINITION

Classification: 524/78

Residue of undetermined constitution derived from destructive distillation of a plant or animal source or plant or animal extract of undetermined constitution DNRM:

(under subclass 1) Subject matter wherein a solid polymer or specified intermediate condensation product is admixed with a designated nonreactant material, which material is a residue of undetermined constitution and is obtained from a destructive distillation process or from solvent extraction of a plant or animal source, e.g., pine tar, wood tar, or pitch, etc.

(1) Note. The residue obtained must be the material obtained directly by the destructive distillation or solvent extraction step. Any subsequent step to remove by solvent extraction or by any other means in order to obtain a fraction which may yield a residue, such as by evaporation of the solvent, is not proper herein and will be classified below on the particular fraction obtained.

SEE OR SEARCH THIS CLASS, SUBCLASS:

485, for a DNRM which is turpentine, turpentine oil, oil of turpentine, or spirits of turpentine.