Ultraviolet-curable polymer molding composition for continuous finishing, used for extrudate or composite, e.g. tube, fiber or profile, contains silane and covalent carbon-carbon cure enhancers and p-dodecylbenzophenone as photoinitiator

摘要

UV-curable polymer molding composition contains 80-98.4 (wt.)% polymer(s) (A), 0.5-8% enhancer(s) (B) for UV-silane cure with (A), 0.5-8% enhancer(s) (C) for UV-covalent carbon-carbon cure with (A), 0.5-8% p-dodecylbenzophenone as photoinitiator (D) and 0.1-15% additive(s) (E), such that continuous finishing by plasticizing, molding and UV cure gives inter- and/or intramolecular crosslinks of both types with (A) to a degree of crosslinking of 65-98%. An independent claim is also included for a process for UV cure of the composition.