US PATENT SUBCLASS 524 / 548
.~.~.~.~ From heterocyclic monomer

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

*  DD  SYNTHETIC RESINS (Class 520, Subclass 1) {1}
*  DD  .~ 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 (Class 523, subclass 1) {17}
1  DF  .~.~ Adding a NRM to a preformed solid polymer or preformed specified intermediate condensation product, composition thereof; or process of treating or composition thereof {31}
543  DF  .~.~.~ Polymer derived from ethylenic reactants only {11}
548.~.~.~.~ From heterocyclic monomer {1}
549  DF  .~.~.~.~.~> Five-membered oxygen ring, e.g., coumarone-indene, etc.

DEFINITION

Classification: 524/548

From heterocyclic monomer:

(under subclass 543) Subject matter wherein the solid polymer is derived from an ethylenic monomer containing at least one heterocyclic ring.

(1) Note. See the Class 520 Glossary for the definition of the term "heterocyclic".