US PATENT SUBCLASS 106 / 170.11
.~.~.~.~.~ Chalcogen hetero atom

Current as of: June, 1999
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106 /   HD   COMPOSITIONS: COATING OR PLASTIC

*  DD  COATING OR PLASTIC COMPOSITIONS {40}
162.1  DF  .~ Carbohydrate or derivative containing {15}
163.01  DF  .~.~ Cellulosic material {11}
168.01  DF  .~.~.~ Cellulose ester or salt thereof {21}
170.1  DF  .~.~.~.~ With nitrogen hetero ring compound {1}
170.11.~.~.~.~.~ Chalcogen hetero atom

DEFINITION

Classification: 106/170.11

Chalcogen hetero atom:

(under subclass 170.1) Compositions wherein the hetero ring compound has both nitrogen and chalcogen (i.e., oxygen, sulfur, selenium, and tellurium) as hetero atoms in the same hetero ring or has a hetero ring containing nitrogen attached directly or indirectly to a hetero ring containing chalcogen.