E.i. Dupont De Nemours and Company

Henkel Ag & Company, Kgaa

Ball Packaging Europe Gmbh

Bernd Struck

Dietmar Dudek

Andreas Kunz

Wolfgang Schneider

Holger Endres

Konrad Hinz

Patrick Podwoiski

A photopolymerizable mixture for photopolymerizable printing plates with an improved resistance to UV-hardenable printing inks, contains 10-45% by weight of at least one thermoplastic, elastomeric, block copolymer comprising of two or more polymer blocks comprising aromatic vinyl units and one or more polymer blocks comprising isoprene and/or isoprene/butadiene units. The block copolymer has a vinyl bond content not above 70%, a glass transition temperature not above 20.degree. C., and a peak temperature of a primary dispersion of tan .delta. not above 30.degree. C.

Flexographic printing forms having resistance to UV-hardenable printing

Photopolymerizable printing plates with an improved resistance to UV-hardenable printing inks, have an elastomeric layer containing at least one thermoplastic, elastomeric, block copolymer comprising two or more polymer blocks comprising aromatic vinyl units, and one or more polymer blocks comprising isoprene and/or isoprene/butadiene units. The block copolymer has a vinyl bond content not above 70%, a glass transition temperature not above 20.degree. C., and a peak temperature of a primary dispersion of tan .delta. not above 30.degree. C.

Flexographic printing forms for UV-hardenable printing inks

Growing community of inventors

Dreieich, Germany

Bernd Struck