Polymerizable photoinitiators and radiation curable compositions

US8492452B2 · kind B2 · utility

Assignee

• AGFA GRAPHICS NV · BE

Inventors

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

Key dates

• Filing date: Dec 1, 2009
• Grant date: Jul 23, 2013
• Expiry date: Mar 29, 2030

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07C2602/42
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

A polymerizable photoinitiator is represented by Formula (I):wherein R1, R2 and R3 are independently selected from the group consisting of a hydrogen, an optionally substituted alkyl group and an optionally substituted aryl group or R1 and R3 represent the necessary atoms to form a five to eight membered ring; p, w, y and z are all integers with y representing a value 1 to 6; p representing the sum of w and z; p representing a value of 1 to 6; w=1 to (p−z) and z=0 to (p−w); L represents an optionally substituted (p+y)-valent linking group comprising 1 to 14 carbon atoms; A represents a radically polymerizable group selected from the group consisting of an acrylate group, a methacrylate group, a styrene group, an acryl amide group, a methacryl amide group, a maleate group, a fumarate group, an itaconate group, a vinyl ether group, an allyl ether group, an allyl ester group and a vinyl ester group; and X represents a photoinitiating moiety including at least one group capable of initiating a free radical polymerization reaction upon exposure to actinic radiation.