US PATENT SUBCLASS 540 / 130
.~.~.~.~ Having -C(=X)-, wherein X is chalcogen, attached indirectly to ring carbon of the phthalocyanine ring system by nonionic bonding (e.g., phthalocyanine acetic acids, etc.)


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540 /   HD   ORGANIC COMPOUNDS -- PART OF THE CLASS 532-570 SERIES

*  DD  ORGANIC COMPOUNDS (Class 532, Subclass 1) {1}
1  DF  .~ HETEROCYCLIC CARBON COMPOUNDS CONTAINING A HETERO RING HAVING CHALCOGEN (I.E., OXYGEN, SULFUR, SELENIUM OR TELLURIUM) OR NITROGEN AS THE ONLY RING HETERO ATOMS {6}
121  DF  .~.~ Azaporphyrins {1}
122  DF  .~.~.~ Phthalocyanines {8}
130.~.~.~.~ Having -C(=X)-, wherein X is chalcogen, attached indirectly to ring carbon of the phthalocyanine ring system by nonionic bonding (e.g., phthalocyanine acetic acids, etc.)


DEFINITION

Classification: 540/130

(under subclass 122) Compounds wherein a - - group, in which X is a chalcogen (i.e., oxygen, sulfur, selenium, or tellurium), is attached indirectly to a ring carbon of the phthalocyanine ring system by nonionic bonding.

(1) Note. The structure below is an example of a compound provided for herein, wherein CuPc is a copper phthalocyanine radical. [figure]