US PATENT SUBCLASS 568 / 717
.~.~.~.~.~ Polyphenols


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

*  DD  ORGANIC COMPOUNDS (Class 532, Subclass 1) {4}
300  DF  .~ OXYGEN CONTAINING (E.G., PERCHLORYLBENZENE, ETC.) {11}
700  DF  .~.~ Hydroxy containing (H of -OH may be replaced by a Group IA or IIA light metal) {10}
715  DF  .~.~.~ Benzene ring containing {8}
716  DF  .~.~.~.~ Phenols (H of -OH may be replaced by a Group IA or IIA light metal) {14}
717.~.~.~.~.~ Polyphenols {4}
718  DF  .~.~.~.~.~.~> Three or more rings containing {3}
722  DF  .~.~.~.~.~.~> Two phenols bonded directly to the same carbon {1}
729  DF  .~.~.~.~.~.~> Two phenols bonded directly to two different carbons of an acyclic chain
730  DF  .~.~.~.~.~.~> Two phenols bonded directly to each other


DEFINITION

Classification: 568/717

Polyphenols:

(under subclass 716) Compounds which contain at least two benzene rings each having -OH or -OM bonded directly thereto (i.e., at least two phenolic nuclei).

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