US PATENT SUBCLASS 526 / 90
.~.~.~ Material contains transition metal or compound thereof

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.~.~.~ Material contains transition metal or compound thereof {15}
91  DF  .~.~.~.~> In presence of water {2}
95  DF  .~.~.~.~> Material contains transition metal oxide (other than peroxide) {9}
108  DF  .~.~.~.~> Contains one or more elemental transition metal atoms {3}
113  DF  .~.~.~.~> Two or more diverse transition metal atoms in distinct compounds or in the same compound {2}
118  DF  .~.~.~.~> Material contains two or more different compounds of same transition metal {1}
120  DF  .~.~.~.~> Material contains compound of non-transition heavy metal wherein non-transition heavy metal is not bonded to hydrogen or carbon {1}
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}
126  DF  .~.~.~.~> Material contains silicon atom {2}
131  DF  .~.~.~.~> Material contains boron atom {2}
135  DF  .~.~.~.~> With non-metal N, P, O, S, Se, Te, or halogen material other than nitrogen gas {4}
148  DF  .~.~.~.~> Contains two or more diverse non-transition elemental metals, different non-transition hydride compounds, different carbon to non transition metal compounds, or mixture thereof {3}
154  DF  .~.~.~.~> Material contains aluminum compound wherein aluminum atom is not bonded to hydrogen or carbon atom {1}
159  DF  .~.~.~.~> Material contains non-transition elemental metal, hydride thereof, or carbon to non-transition metal atom bond {11}
170  DF  .~.~.~.~> Transition metal bonded to carbon atom {1}
172  DF  .~.~.~.~> Transition metal compound has at least one atom of P, S, N or O therein

DEFINITION

Classification: 526/90

(under subclass 89) Subject matter wherein the specified material contains at least one transition metal atom.

(1) Note. "Transition metal" for purposes of this subclass is limited to elements of atomic numbers 21-29, 39-47, 57-79, and 89 and higher and does not include Zn, Cd, and Hg. "Nontransition metal" as used throughout this schedule is intended to include all metals other than the transition metals.

(2) Note.

(a)

Nontransition metal atom-to-carbon bond as used throughout this schedule includes all compounds that contain at least one carbon atom bonded to at least one nontransition metal atom.

(b)

Nontransition metal hydride as used through this schedule includes all compounds that contain at least one hydrogen atom bonded to at least one nontransition metal. (c)

Included within the scope of compounds encompassed by the definition of 2(a) and 2(b) above are those compounds having two or more nontransition metal atoms wherein additionally one of said atoms is bonded to a carbon or hydrogen atom and wherein one of said nontransition metal atoms is not bonded to a hydrogen or carbon atom.

(3) Note.

(a)

Metal borohydrides (e.g., LiBH4, Ti(BH4)3, etc.) are classified as if they are hydrides of boron and of the metal atom.

(b)

Mixed metal hydrides (e.g., NaA1H4, (CaALH4)2, etc.) are classified as if they are hydrides of aluminum and of the other metal.

(c)

In those instances where a carbon atom has replaced at least one or more hydrogen atoms of compounds as elaborated in 3(a) above, then classification is made as if these compounds are alternatively bonded to a boron atom and to a metal, and in those cases wherein a carbon atom has replaced at least one or more hydrogen atoms of compounds as elaborated in 3(b) above, then classification is made as if these compounds are alternatively bonded to either one of the metal atoms.

SEE OR SEARCH THIS CLASS, SUBCLASS:

132, for a mixture of LiBH4 and Ti Cl4. 159, for a mixture of NaAl H4 and Ti Cl4.