US PATENT SUBCLASS 252 / 301.27
.~.~ Azole containing

Current as of: June, 1999
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252 /   HD   COMPOSITIONS

301.16  DF  ORGANIC LUMINESCENT MATERIAL CONTAINING COMPOSITIONS {6}
301.21  DF  .~ Optical brightening compositions {6}
301.27.~.~ Azole containing {2}
301.28  DF  .~.~.~> Thiazoles or oxazoles
301.29  DF  .~.~.~> Tri- or tetrazoles

DEFINITION

Classification: 252/301.27

(under subclass 301.21) Compositions which contain a heterocyclic compound having a five-membered ring having at least two hetero atoms, at least one of which is a nitrogen atom.

SEE OR SEARCH CLASS

548, Organic Compounds,

100+, for azole compounds, per se.