US PATENT SUBCLASS 162 / 164.5
.~.~.~ Sulfur 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}
164.5.~.~.~ Sulfur containing

DEFINITION

Classification: 162/164.5

Sulfur containing:

Subject matter under 164.1 wherein the synthetic resin molecules include the element sulfur.

(1) Note. The synthetic resin may be, e.g., a polysulfonium resin, etc.