US PATENT SUBCLASS 526 / 178
.~.~.~.~ Contains boron or silicon atom


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}
178.~.~.~.~ Contains boron or silicon atom


DEFINITION

Classification: 526/178

(under subclass 173) Subject matter wherein the specified material contains boron or silicon (e.g., LiBH4[end subscrpt]. etc.).