US PATENT SUBCLASS 562 / 83
.~.~.~ Halogen attached indirectly to the sulfonate group by nonionic bonding

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

*  DD  ORGANIC COMPOUNDS (Class 532, Subclass 1) {41}
30  DF  .~ Sulfonic acids or salts thereof (i.e., compounds containing the sulfonate group, -S(=O)(=O)-O- wherein the single bonded oxygen is bonded directly to hydrogen, or to a group IA or IIA light metal or to substituted or unsubstituted ammonium) {15}
45  DF  .~.~ Benzene ring bonded directly to the sulfonate sulfur (e.g., purification and neutralization of benzene sulfonic acids, etc.) {11}
83.~.~.~ Halogen attached indirectly to the sulfonate group by nonionic bonding

DEFINITION

Classification: 562/83

(under subclass 45) Compounds wherein the sulfonate group is attached indirectly to halogen by nonionic bonding.

(1) Note. An example of a compound provided for herein is: [figure]