US PATENT SUBCLASS 523 / 108
.~.~.~.~ Polymer of a heterocyclic N-vinyl polymerizable compound

Current as of: June, 1999
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523 /   HD   SYNTHETIC RESINS OR NATURAL RUBBERS -- PART OF THE CLASS 520 SERIES

*  DD  SYNTHETIC RESINS (Class 520, Subclass 1) {1}
1  DF  .~ PROCESSES OF PREPARING A DESIRED OR INTENTIONAL COMPOSITION OF AT LEAST ONE NONREACTANT MATERIAL AND AT LEAST ONE SOLID POLYMER OR SPECIFIED INTERMEDIATE CONDENSATION PRODUCT, OR PRODUCT THEREOF {71}
105  DF  .~.~ Nonmedicated composition specifically intended for contact with living animal tissue or process of preparing; other than apparel {7}
106  DF  .~.~.~ Contact lens making composition {2}
108.~.~.~.~ Polymer of a heterocyclic N-vinyl polymerizable compound

DEFINITION

Classification: 523/108

Polymer of a heterocyclic N-vinyl polymerizable compound:

(under subclass 106) Subject matter wherein said composition contains a polymer derived from a heterocyclic N-vinyl monomer (e.g., N-vinyl lactam, etc.).