Patent ID: 8669039
Filing Date: 2014-03-11
Classification: B05D,B29C,B32B,B41C,B41N,C08K,C08L,G03F,Y10T

Abstract:
1. A flexographic printing plate precursor or a flexographic printing sleeve precursor, comprising an infrared radiation ablatable layer comprising an elastomer, a carbon black in an amount of at least 1 weight % to and including 20 weight % and an inorganic filler, wherein the weight ratio of the carbon black to the inorganic filler is from 1:20 to and including 1:5, all based on the total dry weight of the infrared radiation ablatable layer, wherein the infrared radiation ablatable layer comprises a mixture of a high molecular weight ethylene-propylene-diene terpolymer (EPDM) and a low molecular weight ethylene-propylene-diene terpolymer (EPDM), and the high molecular weight EPDM has a molecular weight of from about 250,000 to about 500,000, and the low molecular weight EPDM has a molecular weight of from about 2,000 to about 8,000.