US PATENT SUBCLASS 526 / 126
.~.~.~.~ Material contains 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}
90  DF  .~.~.~ Material contains transition metal or compound thereof {15}
126.~.~.~.~ Material contains silicon atom {2}
127  DF  .~.~.~.~.~> Contains non-transition free metal, hydride thereof, or carbon to non-transition metal atom bond {2}
130  DF  .~.~.~.~.~> Silicon present in inorganic oxygen-containing compound

DEFINITION

Classification: 526/126

(under subclass 90) Subject matter wherein the specified material contains a transition metal compound which is in admixture with a silicon-containing material, or wherein the transition metal compound additionally contains at least one silicon atom therein.

(1) Note. Included herein are those processes that claim the use of silica.