US PATENT SUBCLASS 585 / 512
.~.~.~.~ Al-and transition metal-containing

Current as of: June, 1999
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585 /   HD   CHEMISTRY OF HYDROCARBON COMPOUNDS

500  DF  UNSATURATED COMPOUND SYNTHESIS {14}
502  DF  .~ By addition of entire unsaturated molecules, e.g., polymerization, etc. {8}
510  DF  .~.~ Definite molecular weight product, e.g., dimer, etc. {4}
511  DF  .~.~.~ Using catalyst containing metal bonded to or complexed with C, C-containing compound, or H {1}
512.~.~.~.~ Al-and transition metal-containing {1}
513  DF  .~.~.~.~.~> And N-, P-, or S-containing

DEFINITION

Classification: 585/512

Al- and transition metal-containing:

(under subclass 511) Subject matter wherein the catalyst contains aluminum and a transition metal, either metal or both metals appearing in a hydride, carbon compound, or complex.

(1) Note. A transition metal is one in which an inner electron shell, rather than an outer shell, is partially filled. In the periodic table transition metals include elements 21 through 30 (scandium through zinc), 39 through 48 (yttrium through cadmium), 57 through 80 (lanthanum through

mercury), and 89 through 103 (actinium through lawrencium).