US PATENT SUBCLASS 264 / 29.1
CARBONIZING TO FORM ARTICLE

Current as of: June, 1999
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264 /   HD   PLASTIC AND NONMETALLIC ARTICLE SHAPING OR TREATING: PROCESSES

29.1CARBONIZING TO FORM ARTICLE {6}
29.2  DF  .~> Filaments
29.3  DF  .~> Agglomeration or accretion
29.4  DF  .~> From cellulosic material
29.5  DF  .~> With carbonizing, then adding carbonizable material and recarbonizing
29.6  DF  .~> In specific atmosphere (except vacuum or air)
29.7  DF  .~> Controlling varying temperature or plural heating steps

DEFINITION

Classification: 264/29.1

(under the class definition) Processes wherein a carbonaceous material is subjected to a heat treatment in a substantially nonoxidizing atmosphere to produce a product containing elemental carbon.

SEE OR SEARCH THIS CLASS, SUBCLASS:

105, for processes of molding or shaping electroconductive material, which material contains elemental carbon, at least in part.

603+, for firing, sintering or vitrifying operations on inorganic shaped materials which are not directed to carbonizing the material.

SEE OR SEARCH CLASS

44, Fuel and Related Compositions, 599, for a process of making a consolidated fuel solids composition which includes a step of carbonizing using a specified condition or technique.

201, Distillation: Processes, Thermolytic, appropriate subclass, for a process of thermolytic distillation of carbonaceous material, e.g., coking, etc.

423, Chemistry of Inorganic Compounds,

445+, for elemental carbon, per se, and its manufacturing processes involving a chemical reaction. For the line between 423 subclasses 445+ and this class concerning combined processes of molding and carbonizing, see the class definitions of this class, section II. A. 10).

427, Coating Processes,

307+, for coating processes including flame contact.

502, Catalyst, Solid Sorbent, or Support Therefor: Product or Process of Making, for a composition comprising a catalyst or sorbent, per se, which may be activated carbon. Activated carbon is proper for Class 502, rather than Class 423.