US PATENT SUBCLASS 162 / 164.6
.~.~.~ Nitrogen containing

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}
164.6.~.~.~ Nitrogen containing

DEFINITION

Classification: 162/164.6

Nitrogen containing:

(under subclass 164.1) Subject matter wherein the synthetic resin molecules include the element nitrogen.

(1) Note. The synthetic resin may be, e.g., polyamide, a polyamine, a polyimine, etc.