US PATENT SUBCLASS 558 / 165
.~.~.~.~.~.~.~ Divalent chalcogen, bonded directly to two carbons or to carbon and hydrogen, attached indirectly to phosphorus by acyclic nonionic bonding (wherein the hydrogen may be replaced by substituted or unsubstituted ammonium, or by a Group IA or IIA light metal)

Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999      Terms of Use


558 /   HD   ORGANIC COMPOUNDS -- PART OF THE CLASS 532-570 SERIES

*  DD  ORGANIC COMPOUNDS (Class 532, Subclass 1) {21}
70  DF  .~ Phosphorus esters (i.e., compounds having the phosphorus ester group, wherein trivalent or pentavalent phosphorus and carbon are bonded directly to the same divalent chalcogen, and wherein the carbon may be single bonded to any atom but may be multiple bonded only to carbon) {18}
155  DF  .~.~ Plural phosphori attached directly or indirectly to each other by nonionic bonding {1}
156  DF  .~.~.~ Plural phosphorus ester groups {4}
161  DF  .~.~.~.~ Divalent chalcogen double bonded directly to pentavalent phosphorus {2}
163  DF  .~.~.~.~.~ Plural phosphori attached indirectly to each other by an acyclic chalcogen containing chain {1}
164  DF  .~.~.~.~.~.~ Plural chalcogens in the acyclic chain {1}
165.~.~.~.~.~.~.~ Divalent chalcogen, bonded directly to two carbons or to carbon and hydrogen, attached indirectly to phosphorus by acyclic nonionic bonding (wherein the hydrogen may be replaced by substituted or unsubstituted ammonium, or by a Group IA or IIA light metal)

DEFINITION

Classification: 558/165

(under subclass 164) Compounds wherein a divalent chalcogen (i.e., oxygen, sulfur, selenium, or tellurium), which is bonded directly to two carbons or to carbon and hydrogen, is attached indirectly to phosphorus by acyclic nonionic bonding, wherein the hydrogen may be replaced by substituted or unsubstituted ammounium, or by a Group IA or IIA light metal.

(1) Note. Examples of compounds provided for herein are: [figure] [figure]