US PATENT SUBCLASS 546 / 351
.~.~.~.~.~ Stabilized alkenyl pyridines

Current as of: June, 1999
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546 /   HD   ORGANIC COMPOUNDS -- PART OF THE CLASS 532-570 SERIES

*  DD  ORGANIC COMPOUNDS (Class 532, Subclass 1) {1}
*  DD  .~ HETEROCYCLIC CARBON COMPOUNDS CONTAINING A HETERO RING HAVING CHALCOGEN (I.E., OXYGEN, SULFUR, SELENIUM, OR TELLURIUM) OR NITROGEN AS THE ONLY RING HETERO ATOMS (Class 540, subclass 1) {1}
1  DF  .~.~ Hetero ring is six-membered consisting of one nitrogen and five carbons {24}
348  DF  .~.~.~ Unsubstituted or hydrocarbyl substituted only, or salt thereof {3}
350  DF  .~.~.~.~ Unsaturated hydrocarbyl side chain {2}
351.~.~.~.~.~ Stabilized alkenyl pyridines

DEFINITION

Classification: 546/351

Stabilized alkenyl pyridines:

(under subclass 350) Compounds which are alkenyl substituted pyridines that have been stabilized against polymerization.

(1) Note. This stabilization is normally accomplished by adding to the alkenyl pyridine a polymerization inhibiting amount of certain compounds, such as an alkali-metal polysulfide, an iron halide, an indigo, etc.