US PATENT SUBCLASS 526 / 175
.~.~.~.~ Contains two or more separate chemical entities containing atoms of the same alkali metal, with at least one atom in elemental form, or in the form of a hydride, or has an alkali metal to carbon atom bond

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

*  DD  SYNTHETIC RESINS (Class 520, Subclass 1) {8}
72  DF  .~ POLYMERS FROM ONLY ETHYLENIC MONOMERS OR PROCESSES OF POLYMERIZING, POLYMERIZABLE COMPOSITIONS CONTAINING ONLY ETHYLENIC MONOMERS AS REACTANTS OR PROCESSES OF PREPARING {43}
89  DF  .~.~ Polymerizing in the presence of a specified material other than monomer {28}
173  DF  .~.~.~ Material contains elemental alkali metal, hydride thereof, or alkali metal to carbon atom bond (Li, Na, K, Rb, Cs, Fr) {9}
175.~.~.~.~ Contains two or more separate chemical entities containing atoms of the same alkali metal, with at least one atom in elemental form, or in the form of a hydride, or has an alkali metal to carbon atom bond

DEFINITION

Classification: 526/175

(under subclass 173) Subject matter wherein the specified material contains (1) an elemental alkali metal admixed with a compound of the same alkali metal; or (2) wherein an alkali metal hydride or compound containing an alkali metal-to-carbon bond is admixed with another compound of the same alkali metal (e.g., Na and sodium t-dodecyl mercaptide, or butyl lithium, and LiH, etc.).