US PATENT SUBCLASS 558 / 51
.~.~ Chalcogen attached indirectly to the sulfonate group by acyclic nonionic bonding

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}
44  DF  .~ Sulfonate esters (i.e., compounds having the sulfonate group, -O-S(=O)(=O) , wherein the single bonded oxygen is bonded directly to carbon, which carbon may be single bonded to any atom but may be multiple bonded only to carbon) {7}
51.~.~ Chalcogen attached indirectly to the sulfonate group by acyclic nonionic bonding {1}
52  DF  .~.~.~> The chalcogen, X, is in a -C(=X)- group

DEFINITION

Classification: 558/51

(under subclass 44) Compounds wherein the sulfonate group is attached indirectly to chalcogen (i.e., oxygen, sulfur, selenium, or tellurium) by acyclic nonionic bonding.

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