Amine co-initiators for radiation curable compositions

US8338499B2 · kind B2 · utility

Assignee

• AGFA GRAPHICS NV · BE

Inventors

• Johan Loccufier · Zwijnaarde, BE
• Roland Claes · Dendermonde, BE
• Jaymes Van Luppen · Wilrijk, BE

Key dates

• Filing date: Dec 17, 2007
• Grant date: Dec 25, 2012
• Expiry date: Dec 16, 2028

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08F2/50
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

A radiation curable composition comprising a curable compound, a photo-initiator and a co-initiator characterized in that said co-initiator is represented by Formula I,wherein MA is the residue of a mono- or oligofunctional Michael acceptor; L is a divalent linking group positioning the two tertiary amines in a 1-3 to 1-10 position, with the proviso that both amines are aliphatic; R1, R2 and R3 independently represent an optionally substituted alkyl group, an optionally substituted alkenyl group , an optionally substituted alkynyl group or an optionally substituted (hetero) alkaryl group; any two of R1, R2 and R3 may represent the necessary atoms to form a ring; any two of R1, R2 and R3 may represent the necessary atoms to form a ring with any of the atoms of the linking group L; n is an integer ranging from 1 to 6.