US PATENT SUBCLASS 526 / 266
.~.~ From monomer containing oxygen as part of a heterocyclic ring

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

*  DD  SYNTHETIC RESINS (Class 520, Subclass 1) {8}
72  DF  .~ POLYMERS FROM ONLY ETHYLENIC MONOMERS OR PROCESSES OF POLYMERIZING, POLYMERIZABLE COMPOSITIONS CONTAINING ONLY ETHYLENIC MONOMERS AS REACTANTS OR PROCESSES OF PREPARING {43}
266.~.~ From monomer containing oxygen as part of a heterocyclic ring {5}
267  DF  .~.~.~> Polymer contains coumarone and indene
268  DF  .~.~.~> From cyclic ether which is bridged or fused to a ring system
269  DF  .~.~.~> Hetero-oxygen ring compound contains a carbonate group, i.e., -O-C(=O)-O as ring atoms
270  DF  .~.~.~> 5-membered heterocyclic ring compound contains at least one oxygen atom {1}
273  DF  .~.~.~> 3-membered heterocyclic ring contains at least one oxygen atom

DEFINITION

Classification: 526/266

(under subclass 72) Subject matter wherein an unsaturated monomer contains at least one or more carbon atoms covalently bonded in a ring system with at least one hetero atom of oxygen, selenium or tellurium and there are no other atoms in the ring, with the proviso that at least one of the hetero atoms is oxygen.

SEE OR SEARCH THIS CLASS, SUBCLASS:

260, for a 5- or 6-membered heterocyclic ring containing at least one atom of oxygen and nitrogen therein.

275, for a ring compound containing a phosphorus atom in the ring.