US PATENT SUBCLASS 162 / 14
.~ Including recovery of organic by-product

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

1  DF  PROCESSES OF CHEMICAL LIBERATION, RECOVERY OR PURIFICATION OF NATURAL CELLULOSE OR FIBROUS MATERIAL {33}
14.~ Including recovery of organic by-product {2}
15  DF  .~.~> From digester relief gases
16  DF  .~.~> From waste liquor

DEFINITION

Classification: 162/14

(under subclass 1) Processes combined with the recovery of an organic constituent from the raw fibrous material or a reaction product derived from such constituent, in addition to the liberated fiber.

(1) Note. The organic material recovered must originate or be formed from the fibrous material. Mere separation of the organic material is sufficient unless it is destroyed or discarded.

SEE OR SEARCH THIS CLASS, SUBCLASS:

29+, for digestion or chemical treating processes in which the digestion liquor or treating agent is recovered or reused for treatment of further quantities of fibrous material.

SEE OR SEARCH CLASS

106, Compositions: Coating or Plastic, particularly

123.11+, for processes of preparation of plastic or coating composition wherein a cellulose liberation liquor is employed.

435, Chemistry: Molecular Biology and Microbiology,

251, and 252 for processes of fermenting cellulose liberation waste liquor not combined with a fiber liberation.

530, Chemistry: Natural Resins or Derivatives; Peptides or Proteins; Lignins or Reaction Products Thereof,

205+, for tall oil and its reaction products, and subclasses 500+ for lignins and reaction products thereof.