US PATENT SUBCLASS 162 / 168.5
.~.~.~.~.~ Heterocyclic N or S or epoxy component


Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999      Terms of Use



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  DF  .~.~.~.~ Nitrogen containing compound {2}
168.5.~.~.~.~.~ Heterocyclic N or S or epoxy component


DEFINITION

Classification: 162/168.5

Heterocyclic N or S epoxy component:

Subject matter under subclasss 168.2 wherein one component of the polymer contains a heterocyclic nitrogen or sulfur containing group or an epoxy group as below: [figure]