US PATENT SUBCLASS 556 / 427
.~.~ Sulfur attached indirectly to silicon by nonionic bonding


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

*  DD  ORGANIC COMPOUNDS (Class 532, Subclass 1) {3}
400  DF  .~ SILICON CONTAINING {19}
427.~.~ Sulfur attached indirectly to silicon by nonionic bonding {2}
428  DF  .~.~.~> Chalcogen bonded directly to sulfur
429  DF  .~.~.~> The sulfur is part of a -SH or -SC(=X)- group, wherein X is chalcogen (H of -SH may be replaced by a substituted or unsubstituted ammonium ion or a Group IA or IIA light metal)


DEFINITION

Classification: 556/427

(under subclass 400) Compounds in which sulfur is attached indirectly to silicon by nonionic bonding.