US PATENT SUBCLASS 252 / 188.1
REDUCTIVE BLEACHANT, DEOXIDANT, REDUCTANT, OR GENERATIVE

Current as of: June, 1999
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252 /   HD   COMPOSITIONS

188.1REDUCTIVE BLEACHANT, DEOXIDANT, REDUCTANT, OR GENERATIVE {4}
188.2  DF  .~> Sulfur containing reductant, bleachant, deoxidant, or generative {1}
188.25  DF  .~> Hydrogen generating
188.26  DF  .~> Hydride containing {1}
188.28  DF  .~> Deoxidant or oxygen scavenging

DEFINITION

Classification: 252/188.1

REDUCTIVE BLEACHANT, DEOXIDANT, REDUCTANT, OR GENERATIVE:

(under the class definition) Composition which contains substances for use in bleaching by chemical reduction, in deoxygenation, or in other chemical reductions of extraneous substances or in generating hydrogen, or in making substances for such use, or in processes of making such compositions or mere method of using such compositions.

(1) Note. A material qualifies as a reducing agent either if it is so claimed, disclosed or otherwise art-recognized as such.

(2) Note. This subclass and its indents take compositions which are claimed as detergents, but which recite only a reductant and do not recite detergent-type ingredients.

SEE OR SEARCH THIS CLASS, SUBCLASS:

70, for a reversible, heat generating composition containing a reductant or deoxygenating material.

178, for water softening or purifying or scale inhibiting agent containing a deoxidant.

184, for compositions which are also chemically yielding. 372+, for gaseous compositions containing a reductant (e.g., H2 + CO).

410+, for compositions containing a reductant and claimed or solely disclosed as a catalyst. Included herein are oxygen scavenging or deoxidant compositions which function by physical adsorption or absorption; where the absorptive or adsorptive process in unclear or unspecified as being either physical or chemical, the assumption will be made that the process is physical.

SEE OR SEARCH CLASS

8, Bleaching and Dyeing: Fluid Treatment and Chemical Modification of Textiles and Fibers,

101+, for processes of bleaching or decolorizing textiles and which are other than the mere application of a novel reducing bleach composition.

44, Fuel and Related Compositions, appropriate subclasses for those reducing agents which can be considered fuels.

75, Specialized Metallurgical Processes, Compositions for Use Therein, Consolidated Metal Powder Compositions, and Loose Particulate Mixtures, appropriate subclasses for loose mixtures of metal powders.

149, Explosive and Thermic Compositions or Charges, appropriate subclasses for fuel intended for blasting, firearms, jet propulsion of rockets, vehicles, rapidly filling automotive passenger restraining gas bags, chemical lasers, etc. Included in this class are propellants which, upon initiation, are capable of undergoing a chemical change at a relatively high rate of speed. The class also provides for compositions which utilize a reducing agent to produce usable heat in an irreversible or nonregenerating manner.

210, Liquid Purification or Separation,

749+, for processes of chemically treating a liquid for the purpose of purifying the liquid using a deoxygenating or reducing composition; subclass 750 for a method of removing dissolved oxygen from water using alkylhydrazines.

260, Chemistry of Carbon Compounds, appropriate subclasses for organic compounds, per se, which may be reductive and admixtures of such compounds with agents designed to improve the stability of such a compound.

420, Alloys or Metallic Compositions, appropriate subclasses for powder of a single metal and for powder of an alloy or metallic composition. 423, Chemistry of Inorganic Compounds,

265+, for an inorganic compound, which may be reductive, admixed with an agent designed to improve the stability of such a compound.

510, Cleaning Compositions for Solid Surfaces, Auxiliary Compositions Therefor, or Processes of Preparing the Compositions, for cleaning compositions, particularly

247+, for deoxidant containing descaling agents and subclasses 302+ and 367+ for compositions including a chemical bleach component which is a reducing agent.

520, Synthetic Resins or Natural Rubber, appropriate subclasses for treating a resin with a reducing agent.