Monosubstituted dithiooxamide compounds and their use

US5124308A · kind A · utility

Inventors

• Loren D. Albin · Windom, US
• David R. Boston · Woodbury, US
• Derek R. Callaby · Oakdale, US
• Jacqueline M. Furlong · Oakdale, US
• Robert J. Lokken · Maplewood, US
• Roger A. Mader · Stillwater, US
• David B. Olson · North Branch, US
• Wayne O. Otteson · Woodbury, US
• Norman P. Sweeny · North Oaks, US
• Daryle Hadley Busch · Lawrence, US
• Nusrallah Jubran · Windom, US

Key dates

• Filing date: Nov 17, 1989
• Grant date: Jun 23, 1992
• Expiry date: Nov 17, 2009

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07C327/42
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

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.