US PATENT SUBCLASS 558 / 93
.~.~.~.~.~.~ And nitrogen bonded directly to the phosphorus in the phosphorus containing reactant

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}
87  DF  .~.~ Processes {19}
89  DF  .~.~.~ Forming the phosphorus ester group {7}
90  DF  .~.~.~.~ Reactant having halogen attached directly to phosphorus by nonionic bonding {3}
92  DF  .~.~.~.~.~ And reactant having alcoholic or phenolic -XH group, wherein X is chalcogen (and wherein H of -XH may be replaced by substituted or unsubstituted ammonium, or by a Group IA or IIA light metal) {7}
93.~.~.~.~.~.~ And nitrogen bonded directly to the phosphorus in the phosphorus containing reactant

DEFINITION

Classification: 558/93

(under subclass 92) Processes in which the phosphorus in the phosphorus containing reactant is attached directly to four or five halagens by nonionic bonding.