US PATENT SUBCLASS 585 / 726
.~.~.~ B-containing

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

700  DF  SATURATED COMPOUND SYNTHESIS {11}
709  DF  .~ By condensation of a paraffin molecule with an olefin-acting molecule, e.g., alkylation, etc. {11}
721  DF  .~.~ Using extraneous nonhydrocarbon agent {6}
726.~.~.~ B-containing

DEFINITION

Classification: 585/726

B-containing:

(under subclass 721) Subject matter wherein the agent comprises boron in elemental or combined form.

(1) Note. This subclass contains a boron compound, alone or in admixture or combination with other substance, except in admixture with hydrogen fluoride.

SEE OR SEARCH THIS CLASS, SUBCLASS:

725, for an alkylation process in which hydrogen fluoride is used with a boron, nitrogen, or phosphorus compound or element, e.g., HF + BF3, etc.