Monosubstituted dithiooxamide compounds and their use

Details Monosubstituted dithiooxamide compounds and their use Monosubstituted dithiooxamide compounds and their use

1989-11-17

1992-06-23

Hess, Bruce H.

Record receiver having plural interactive leaves or a colorless

Having a colorless color-former, developer therefor, or...

Identified organic electron acceptor other than phenolic resin

427150, 503201, 503210, 503211, 503212, 503216, 503218, B41M 5132

Patent

active

051243083

ABSTRACT:
This invention concerns monosubstituted dithiooxamides, and a preferred class comprises those wherein the substituent is such that the resulting dithiooxamide derivative is substantially nonvolatile at about room temperature. Preferred materials are those for which when the monosubstituent dithiooxamide is complexed with a transition metal cation, the resulting polymer is substantially a dark, i.e., preferably blue or blue-black color. Carbonless paper constructions involving use of N-(monosubstituted)dithiooxamides to advantage are described.

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