US PATENT SUBCLASS 44 / 553
.~.~ With synthetic organic polymer prepared by polymerizing specified monomer (e.g., polyacrylonitrile, urea-formaldehyde resins, etc.)

Current as of: June, 1999
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44 /   HD   FUEL AND RELATED COMPOSITIONS

550  DF  CONSOLIDATED SOLIDS (E.G., BRIQUETTE, ETC.) {5}
551  DF  .~ Containing specified binder {15}
553.~.~ With synthetic organic polymer prepared by polymerizing specified monomer (e.g., polyacrylonitrile, urea-formaldehyde resins, etc.)

DEFINITION

Classification: 44/553

With synthetic organic polymer prepared by polymerizing specified monomer (e.g., polyacrylonitrile, urea-formaldehyde resins, etc.):

(under subclass 551) Subject matter wherein a synthetic polymer or copolymer, prepared via polymerization of a specified monomer or copolymerization of specified monomers, is a component in a consolidated solid fuel composition.

(1) Note. The polymers will normally, but not necessarily, serve a binding function.

(2) Note. This subclass does not provide for consolidated solid fuel compositions solely because of the presence of a naturally-occurring polymeric substance which has been chemically modified.

SEE OR SEARCH THIS CLASS, SUBCLASS:

563, 573 and 579, for consolidated solid fuel compositions containing "resin" as a component.