US PATENT SUBCLASS 526 / 124.1
.~.~.~.~.~ Contains nontransition elemental metal, hydride thereof, or carbon to non-transition metal 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}
90  DF  .~.~.~ Material contains transition metal or compound thereof {15}
123.1  DF  .~.~.~.~ Material contains compound of Group IA (Li, Na, K, Rb, Cs, Fr) or Group IIA (Be, Mg, Ca, Sr, Ba, Ra) metal wherein IA or IIA metal is not bonded to hydrogen or to carbon {1}
124.1.~.~.~.~.~ Contains nontransition elemental metal, hydride thereof, or carbon to non-transition metal atom bond {1}
124.2  DF  .~.~.~.~.~.~> Contains a magnesium compound as the Group IIA metal compound {1}

DEFINITION

Classification: 526/124.1

(under subclass 123.1) Subject matter wherein the specified material contains a nontransition metal in elemental form, or contains a hydride of a nontransition metal, or contains a compound of a nontransition metal wherein the nontransition metal is directly bonded to a carbon atom.

(1) Note. Examples of substances provided for herein as contained in the specified material are lithium metal, MgH2, Al(C2[end

subscrpt]H5)3[end subscrpt], and C2H5[end subscrpt]MgCl.