US PATENT SUBCLASS 524 / 399
.~.~.~.~.~.~ Heavy metal or aluminum (atomic no. 13, 30-33, 48-51, 80-83)

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}
80  DF  .~.~.~ DNRM which is other than silicon dioxide, glass, titanium dioxide, water, halohydrocarbon, hydrocarbon, or elemental carbon {4}
81  DF  .~.~.~.~ Organic DNRM {21}
394  DF  .~.~.~.~.~ Oxygen atom or metal atom DNRM, e.g., metal stearate, etc. {6}
399.~.~.~.~.~.~ Heavy metal or aluminum (atomic no. 13, 30-33, 48-51, 80-83)

DEFINITION

Classification: 524/399

Heavy metal or aluminum (atomic no. 13, 30-33, 48-51, 80-83):

(under subclass 394) Subject matter wherein the metal compound contains at least one heavy metal or aluminum atom.

(1) Note. The metal atoms limited to this subclass have atomic numbers 13, 30-33, 48-51, and 80-83.