US PATENT SUBCLASS 560 / 331
.~.~ With preservative or stabilizer

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

*  DD  ORGANIC COMPOUNDS (Class 532, Subclass 1) {17}
330  DF  .~ Isocyanate esters (i.e., compounds containing the isocyanate group, -N=C=O, bonded directly to carbon, which carbon may be single bonded to any atom but may be multiple bonded only to carbon) {7}
331.~.~ With preservative or stabilizer {2}
332  DF  .~.~.~> Nitrogen containing preservative or stabilizer
333  DF  .~.~.~> Phosphorus, silicon, or phenolic hydroxy containing preservative or stabilizer

DEFINITION

Classification: 560/331

(under subclass 330) Products which contain an isocyanate ester in admixture with a preserving or stabilizing agent whose sole function is to prevent physical or chemical change.