US PATENT SUBCLASS 524 / 780
.~.~.~.~ Heavy metal


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}
700  DF  .~.~ Preparation of intentional or desired composition by formation of a solid polymer (SP) or SICP in presence of a designated nonreactant material (DNRM) other than solely water, hydrocarbon, silicon dioxide, glass, titanium dioxide or elemental carbon, composition thereof; or process of treating or composition thereof {23}
779  DF  .~.~.~ Elemental metal or metal compound not containing silicon DNRM {3}
780.~.~.~.~ Heavy metal {3}
781  DF  .~.~.~.~.~> Copper
783  DF  .~.~.~.~.~> Group IV or Group IIB, i.e., Ge, Sn, Pb, Zr, Ti, Hf, Zn, Cd, Hg {1}
785  DF  .~.~.~.~.~> Group VIII, i.e., Fe, Ru, Os, Co, Rh, Ir, Ni, Pd, Pt


DEFINITION

Classification: 524/780

Heavy metal:

(under subclass 779) Subject matter wherein the metal or metal compound is or contains a metal atom having a specific gravity greater than four.