The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 10, 2009
Filed:
Nov. 11, 2005
Bernd Strehmel, Berlin, DE;
Harald Baumann, Osterode/Harz, DE;
Udo Dwars, Herzberg/Harz, DE;
Detlef Pietsch, Badenhausen, DE;
Axel Draber, Osterode, DE;
Michael Mursal, Horden, DE;
Bernd Strehmel, Berlin, DE;
Harald Baumann, Osterode/Harz, DE;
Udo Dwars, Herzberg/Harz, DE;
Detlef Pietsch, Badenhausen, DE;
Axel Draber, Osterode, DE;
Michael Mursal, Horden, DE;
Kodak Graphic Communications, GmbH, Osterode, DE;
Abstract
Lithographic printing plate precursor comprising (a) a lithographic substrate with a hydrophilic surface and (b) a radiation-sensitive coating on the hydrophilic surface comprising (i) one or more types of monomers and/or oligomers and/or polymers, each comprising at least one ethylenically unsaturated group accessible to a free radical polymerization, (ii) at least one sensitizer, and at least one coinitiator capable of forming free radicals together with the sensitizer (ii); characterized in that the at least one sensitizer is an oligomeric or polymeric compound comprising the following structural unit (Formula (I)), wherein πis an aromatic or heteroaromatic unit or a combination of the two so that a conjugated n-system is present between the two groups Z in structure (I), each Z independently represents a heteroatom, each Rand Ris independently selected from a halogen atom, an alkyl, aryl, alkylaryl or aralkyl group, a group —NRRand a group —OR, each R, Rand Ris independently selected from an alkyl, aryl, alkylaryl and aralkyl group, a and b independently represent 0 or an integer from 1 to 4, n has a value of >1 and AS is an aliphatic spacer.