US PATENT SUBCLASS 524 / 59
.~.~.~ Coal, bituminous additive, extract, or derivative thereof; or oil shale; or fatty still residue DNRM

Current as of: June, 1999
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524 /   HD   SYNTHETIC RESINS OR NATURAL RUBBERS -- PART OF THE CLASS 520 SERIES

*  DD  SYNTHETIC RESINS (Class 520, Subclass 1) {1}
*  DD  .~ PROCESSES OF PREPARING A DESIRED OR INTENTIONAL COMPOSITION OF AT LEAST ONE NONREACTANT MATERIAL AND AT LEAST ONE SOLID POLYMER OR SPECIFIED INTERMEDIATE CONDENSATION PRODUCT, OR PRODUCT THEREOF (Class 523, subclass 1) {17}
1  DF  .~.~ Adding a NRM to a preformed solid polymer or preformed specified intermediate condensation product, composition thereof; or process of treating or composition thereof {31}
59.~.~.~ Coal, bituminous additive, extract, or derivative thereof; or oil shale; or fatty still residue DNRM {10}
60  DF  .~.~.~.~> With water additive DNRM {1}
62  DF  .~.~.~.~> With hydrocarbon DNRM additive which is nonresinous and which is nonbituminous, or noncoal derived, e.g., cutback asphalt, kerosene, paraffin wax, etc.
63  DF  .~.~.~.~> Coke additive
64  DF  .~.~.~.~> Asphaltene or maltene additive
65  DF  .~.~.~.~> Coal derived additive, e.g., lignite, etc. {1}
67  DF  .~.~.~.~> Oil shale
68  DF  .~.~.~.~> Two or more solid polymers, or graft or graft-type, or block or block-type solid copolymer
69  DF  .~.~.~.~> Solid polymer derived from ethylenic reactants only at least one of which contains a carboxylic acid or derivative
70  DF  .~.~.~.~> Solid polymer derived from ethylenic reactants only, at least one of which is propylene
71  DF  .~.~.~.~> Solid polymer derived from ethylenic reactants only, at least one of which is a hydrocarbon other than ethylene

DEFINITION

Classification: 524/59

Coal, bituminous additive, extract, or derivative thereof; or oil shale; or fatty still residue DNRM:

(under subclass 1) Subject matter wherein a solid polymer or specified intermediate condensation product is admixed with a designated nonreactant material which is coal or a derivative or extract thereof; or is a bituminous material or a derivative or extract thereof; or is a fatty still residue.

(1) Note. Included within the subclass are oil shale or shale material from which oil has or has not been recovered as well as stearine pitch, coke products, coal tar and pitches.

(2) Note. Chemical compounds which are the result of a synthesis reaction utilizing a petroleum or coal source as a reactant are not the type of material which will generally qualify as a DNRM under this subclass.

(3) Note. Included within this subclass are materials generally described as asphalt. Asphalt derived from natural deposits, e.g., gilsonite, etc., coal or petroleum is included herein.

(4) Note. Bitumen refers to solid or semisolid materials which are often black or dark brown and which occur naturally or are obtained by refining petroleum or are the components of coal which are soluble in organic solvents. The term also applies generically to include natural and synthetic asphalts, tar and pitches. For example, natural asphalts such as Trinidad, Bermuda, glisonite, grahamite and Cuban, etc. Petroleum asphalt may be used such as these obtained from California crudes, Smack over Arkansas crudes, Mid-Continental air-blown oils, Mexican petroleum asphalts, tarry residues known as cracked asphalts by-products during the cracking of gas oil, or other heavier petroleum fractions to obtain gasoline or other lighter fractions, etc. Further still, bituminous materials may be used such as coal tar, wood tar, petroleum pitches, and pitches obtained from various industrial processes such as a fatty acid pitch, etc.

(5) Note. Materials which are substantially known as to chemical constitution are excluded from this subclass and are classified below in the schedule on the basis of chemical constitution. If any doubt exists as to whether a material is of sufficient chemical identify so as to be classified as a specific DNRM, then such doubt is to be resolved by classifying the claim as an original in this area and cross-referencing to the appropriate DNRM area. Certain hydrocarbon materials which have been designated as not being proper herein are hydrocarbon waxes, fluxing oils, low molecular weight addition polymers, hydrocarbon petroleum distillation products, petroleum and petroleum crude oils.

SEE OR SEARCH THIS CLASS, SUBCLASS: 64, for a material designated as asphaltene.

474+, for a hydrocarbon DNRM which is derived from coal.