US PATENT SUBCLASS 162 / 158
.~ Non-fiber additive

Current as of: June, 1999
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162 /   HD   PAPER MAKING AND FIBER LIBERATION

100  DF  PROCESSES AND PRODUCTS {31}
158.~ Non-fiber additive {16}
159  DF  .~.~> Fire proofing agent
160  DF  .~.~> Preservative or antioxidant {1}
162  DF  .~.~> Coloring agent
163  DF  .~.~> Fiber supplied constituent
164.1  DF  .~.~> Synthetic resin {9}
170  DF  .~.~> Natural hydrocarbon gum (rubber)
171  DF  .~.~> Bitumen
172  DF  .~.~> Wax
173  DF  .~.~> Hydrocarbon
174  DF  .~.~> Protein
175  DF  .~.~> Carbohydrate {3}
179  DF  .~.~> Fat, fatty oil, or higher fatty acid
180  DF  .~.~> Natural resin
181.1  DF  .~.~> Inorganic {5}
182  DF  .~.~> With preparatory chemical treatment of fiber
183  DF  .~.~> Incorporation procedures {1}

DEFINITION

Classification: 162/158

(under subclass 100) Processes and products in which a nonfibrous material, other than the suspending water is added, either to the fibrous material prior to deposition, or to the deposited fibrous product prior to the final drying thereof, and the fibrous products so produced.

(1) Note. The added material need not remain in the ultimate product, but may be merely transitory. Processes and products are, in general, classified in this and indented subclasses on the basis of the particular additive, subclass 183 providing for processes which involve some particular manipulation of incorporation (many by way of cross references).

(2) Note. The scope of indented subclasses providing for particular additives is determined by the definition of the class or subclass providing for the particular additive, per se, e.g., Classes 23, Chemistry: Physical Processes and 260, Chemistry of Carbon Compounds.

(3) Note. This subclass includes the products under "E." of the class definition of this class.

SEE OR SEARCH THIS CLASS, SUBCLASS:

10+, for processes of chemically liberating or purifying fiber combined with incorporating a nonfiber material in the final product. 135+, for processes of forming a fibrous web combined with incorporating a nonfiber material after final drying of the fibrous web or article.

SEE OR SEARCH CLASS

428, Stock Material or Miscellaneous Articles, appropriate subclasses, for a coated, impregnated, or bonded stock material product, not elsewhere provided for, and appropriate subclasses for a fiber or fiber containing single or plural layers stock material product with either internal structure (e.g., crimped fiber) or external structured (e.g., corrugated or pleated) where the sole disclosed method of manufacture is some process (e.g., air-laying) other than a process of fiber deposition from a liquid suspension.