US PATENT SUBCLASS 558 / 293
.~.~ Three oxygens attached directly to the same boron by nonionic bonding


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

*  DD  ORGANIC COMPOUNDS (Class 532, Subclass 1) {21}
286  DF  .~ Borate esters (i.e., compounds having boron and carbon each single bonded to the same oxygen, which carbon may be single bonded to any atom but may be multiple bonded only to carbon) {4}
293.~.~ Three oxygens attached directly to the same boron by nonionic bonding {3}
294  DF  .~.~.~> Benzene ring attached indirectly to boron by nonionic bonding
295  DF  .~.~.~> Nitrogen or chalcogen attached indirectly to boron by acyclic nonionic bonding
296  DF  .~.~.~> Trialkyl borates (i.e., compounds having the structure (RO)B(OR)(OR), wherein the R's represent the same or diverse alkyl groups {1}


DEFINITION

Classification: 558/293

(under subclass 286) Compounds wherein a boron is attached directly to three oxygens by nonionic bonding.

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