Patent · US Active

Multifunctional type II photoinitiators and curable compositions

US8362101B2 · kind B2 · utility

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14Claims

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Assignee

AGFA GRAPHICS NV · BE

Inventors

Johan Loccufier · Zwijnaarde, BE
Jaymes Van Luppen · Wilrijk, BE

Key dates

Filing date	May 28, 2009
Grant date	Jan 29, 2013
Priority date	—
Expiry date	Mar 1, 2030

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC09D11/101
WIPO fieldOrganic fine chemistry
WIPO sectorChemistry

Abstract

A multifunctional Type II photoinitiator according to Formula (I):wherein X represents a structural moiety according to Formula (II):wherein:A represents a Norrish Type II initiating group; and L represents a divalent linking group positioning the Norrish Type II initiating group A and the CR2R3-group in a 1-5 to a 1-9 position wherein position 1 is defined as the first atom in the aromatic or alicyclic ring of A to which L is covalently bonded and the position 5 to 9 is defined as the carbon atom of the CR2R3-group to which L is covalently bonded, with the proviso that L does not contain an amine. Radiation curable compositions and inks include the multifunctional Type II photoinitiator.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.