US PATENT SUBCLASS 526 / 118
.~.~.~.~ Material contains two or more different compounds of same transition metal

Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999      Terms of Use


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}
118.~.~.~.~ Material contains two or more different compounds of same transition metal {1}
119  DF  .~.~.~.~.~> Contains non-transition elemental metal, hydride thereof, or carbon to non-transition metal atom bond

DEFINITION

Classification: 526/118

(under subclass 90) Subject matter wherein the specified material contains at least two different transition metal compounds, each of said compounds containing the same transition metal atom.

(1) Note. Excluded from this subclass are compositions containing two or more distinct compounds of the same

transition elements when such compositions are the result of a reaction wherein a part of the original transition metal compound is converted to a different compound form (e.g., partial reduction of TiCl4 with AlR3) to form a mixture of TiCl4 and TiCl3[end subscrpt], etc. However, a patent claim wherein TiCl4 and TiCl3 are separately added would be proper herein.