Colorants containing copolymerizable vinyl groups and sulfonamide linkages

US6620858B2 · kind B2 · utility

Assignee

• Eastman Chemical Company · US

Inventors

• Michael John Cyr · Kingsport, US
• Max A. Weaver · Kingsport, US
• Gerry Foust Rhodes · Elizabethton, US
• Jason Clay Pearson · Kingsport, US
• Phillip Michael Cook · Kingsport, US
• Jos Simon De Wit · Kingsport, US
• Larry K. Johnson · Kingsport, US

Key dates

• Filing date: Aug 1, 2001
• Grant date: Sep 16, 2003
• Expiry date: Aug 3, 2021

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C09J4/00
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

Disclosed are thermally-stable, colored, photopolymerizable compounds containing a vinyl group which are capable of being copolymerized with reactive vinyl monomers to produce colored compositions such as polyacrylates, polymethacrylates, polystyrene, etc. The compounds exhibit good thermal stability, fastness (stability) to UV-light, good solubility in the reactive monomers and good color strength.