US PATENT SUBCLASS 264 / 331.12
.~.~.~.~.~ Polymer having heterocyclic group or polymer derived from monomer having heterocyclic group except heterocyclic derived solely from carboxylic acid (i.e., cyclic imide, lactam, lactone, or anhydride)

Current as of: June, 1999
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264 /   HD   PLASTIC AND NONMETALLIC ARTICLE SHAPING OR TREATING: PROCESSES

239  DF  MECHANICAL SHAPING OR MOLDING TO FORM OR REFORM SHAPED ARTICLE {10}
299  DF  .~ Shaping against forming surface (e.g., casting, die shaping, etc.) {10}
319  DF  .~.~ Applying heat or pressure {6}
330  DF  .~.~.~ Organic material shaping {1}
331.11  DF  .~.~.~.~ Synthetic resin containing {7}
331.12.~.~.~.~.~ Polymer having heterocyclic group or polymer derived from monomer having heterocyclic group except heterocyclic derived solely from carboxylic acid (i.e., cyclic imide, lactam, lactone, or anhydride)

DEFINITION

Classification: 264/331.12

Polymer having heterocyclic group or polymer derived from monomer having heteocyclic group except heterocyclic derived solely from carboxylic acid (i.e., cyclic imide, lactam, lactone, or anhydride):

(under subclass 331.11) Processes in which the synthetic resin is a polymer having or polymer derived from a monomer having a heterocyclic group, i.e., an organic compound wherein one or more carbon atoms are covalently bonded in a ring system with at least one hetero atom of oxygen, sulfur, nitrogen, selenium, or tellurium and there are no other different atoms in the ring, except heterocyclic derived solely from carboxylic acid, i.e., cyclic imide, lactam, lactone, or anhydride.

(1) Note. See subclass 331.13 for the definition of ethylenic group.

SEE OR SEARCH THIS CLASS, SUBCLASS:

331.15+, for ethylenically unsaturated carboxylic acid derivatives, i.e., lactams, cyclic imides, lactones, or anhydrides.

331.19, for lactams or cyclic imides not containing an ethylenic group.

331.21, for lactones or anhydrides not containing an ethylenic group.