Radiation-polymerizable mixture including crosslinkable...

Details Radiation-polymerizable mixture including crosslinkable... Radiation-polymerizable mixture including crosslinkable...

G - Physics

03

F

96/172, 400/4022

G03F 7/26 (2006.01) B23K 35/22 (2006.01) G03F 7/027 (2006.01) G03F 7/032 (2006.01)

Patent

CA 1185389

ABSTRACT OF THE DISCLOSURE A radiation-polymerizable mixture is described comprising a) a compound which has at least two terminal ethylenically unsaturated groups and which can form a crosslinked polymer by means of free radical initiated chain addition polymerization, b) a polymeric binder, c) a radiation-activatable polymerization initiator which can be activated by radiation, and d) a compound which is thermally crosslinkable with the polymeric binder (b), with the polymerization product of compound (a) and/or with itself and which, if its crosslinking groups are epoxy groups, has at least three epoxy groups. A photo- polymerizable copying material is also disclosed having a flexible transparent temporary support and a transferable thermoplastic photopolymerizable layer comprising the foregoing radiation-polymerizable mixture. The photopolymerizable layer, after photocrosslinking, can be additionally cured by thermal crosslinking and is therefore suitable for the manufacture of solder resists and high performance printing plates.

409020

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