US PATENT SUBCLASS 106 / 31.18
.~.~.~.~.~.~ Phenolic hydroxy compound as the developer

Current as of: June, 1999
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106 /   HD   COMPOSITIONS: COATING OR PLASTIC

*  DD  COATING OR PLASTIC COMPOSITIONS {40}
31.01  DF  .~ Marking {14}
31.13  DF  .~.~ Inks {6}
31.14  DF  .~.~.~ Invisible {4}
31.16  DF  .~.~.~.~ Chromogenic (i.e., color formation by reaction of color former with color developer) {2}
31.17  DF  .~.~.~.~.~ Specified developer (i.e., electron acceptor) {1}
31.18.~.~.~.~.~.~ Phenolic hydroxy compound as the developer {1}
31.19  DF  .~.~.~.~.~.~.~> With specified color former

DEFINITION

Classification: 106/31.18

Phenolic hydroxy compound as the developer:

(under subclass 31.17) Compositions wherein the specified developer is a phenolic hydroxy compound.

(1) Note. A phenolic hydroxy compound is a compound wherein a hydroxy group is bonded directly to a substituted or unsubstituted benzene ring.