US PATENT SUBCLASS 162 / 168.2
.~.~.~.~ Nitrogen containing compound

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

100  DF  PROCESSES AND PRODUCTS {31}
158  DF  .~ Non-fiber additive {16}
164.1  DF  .~.~ Synthetic resin {9}
168.1  DF  .~.~.~ Polymerized unsaturated compound {4}
168.2.~.~.~.~ Nitrogen containing compound {2}
168.3  DF  .~.~.~.~.~> Acrylamide containing {1}
168.5  DF  .~.~.~.~.~> Heterocyclic N or S or epoxy component

DEFINITION

Classification: 162/168.2

Nitrogen containing compound:

(under subclass 168.1) Processes in which the unsaturated compound contains at least one atom of nitrogen.

SEE OR SEARCH THIS CLASS, SUBCLASS:

164.6, for similar processes wherein the nitrogen containing compound is not ethylenically unsaturated.

166+, for similar processes wherein the nitrogen containing compound is an amine, or amide-aldehyde.