US PATENT SUBCLASS 585 / 7
.~ Component of indefinite molecular weight greater than 150

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

1  DF  PRODUCT BLEND, E.G., COMPOSITION, ETC., OR BLENDING PROCESS PER SE {5}
7.~ Component of indefinite molecular weight greater than 150 {4}
8  DF  .~.~> Reaction product of halogenated hydrocarbon
9  DF  .~.~> Wax
10  DF  .~.~> Polymer {2}
13  DF  .~.~> Mineral oil (petroleum) fraction

DEFINITION

Classification: 585/7

Component of indefinite molecular weight greater than 150:

(under subclass 1) Subject matter containing a component which (a) is not describable by an empirical formula free of numeric ranges and (b) has a molecular weight greater than 150.

(1) Note. Where the component is normally solid or is a

heavy, oily material, it is assumed to have a molecular weight greater than 150.

SEE OR SEARCH CLASS

252, Compositions,

67+, 70+, and 71+ for "functional fluids", that is, hydraulic transmission fluids, low freezing point fluids, etc., containing other than merely hydrocarbons.

508, Solid Antifriction Devices, Materials Therefor, Lubricant and Separant Compositions for Moving Solid Surfaces, and Miscellaneous Mineral oil Compositions, particularly

110+, for lubricant compositions which contain a nonhydrocarbon component or a solid synthetic hydrocarbon polymer component.