US PATENT SUBCLASS 524 / 63
.~.~.~.~ Coke additive

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}
59  DF  .~.~.~ Coal, bituminous additive, extract, or derivative thereof; or oil shale; or fatty still residue DNRM {10}
63.~.~.~.~ Coke additive

DEFINITION

Classification: 524/63

Coke additive:

(under subclass 59) Subject matter wherein the DNRM is coke.

(1) Note. Coke for purposes of this subclass is the carbonaceous reside (70-78%) remaining after the volatile constituents have been removed by destructive distillation from coal, petroleum, pitch, or other carbonaceous material.