Abstract:
A polymerizable thioxanthone according to Formula (I):
wherein, A represents a thioxanthone moiety; R1 and R2 are independently selected from the group consisting of a hydrogen, an alkyl group, an alkenyl group, an alkynyl group, an aryl group and a heteroaryl group; n represent 1 or 2; and R3 represents a moiety comprising at least one free radical polymerizable group selected from the group consisting of an acrylate, a methacrylate, an acrylamide, a methacrylamide, a styrene group, a maleate, a fumarate, an itaconate, a vinyl ether, a vinyl ester, an allyl ether and an allyl ester.
Abstract translation:根据式(I)的可聚合噻吨酮:其中,A表示噻吨酮部分; R 1和R 2独立地选自氢,烷基,烯基,炔基,芳基和杂芳基; n表示1或2; 并且R 3表示包含至少一个选自丙烯酸酯,甲基丙烯酸酯,丙烯酰胺,甲基丙烯酰胺,苯乙烯基,马来酸酯,富马酸酯,衣康酸酯,乙烯基醚,乙烯基醚的自由基可聚合基团的部分 酯,烯丙基醚和烯丙基酯。
Abstract:
An inkjet printing method including the steps of: a) jetting a radiation curable inkjet ink on a polymeric surface wherein the polymer of the polymeric surface is selected from the group consisting of a polyolefin, a polyester and copolymers thereof; and b) curing the radiation curable inkjet ink on the polymeric surface; wherein the radiation curable inkjet ink includes at least 5 wt% of a (meth)acrylated silicone surfactant based on the total weight of the radiation curable inkjet ink; and wherein the viscosity of the radiation curable inkjet ink is smaller than 30 mPa.s at 25°C and at a shear rate of 1,000 s -1 .
Abstract:
A radiation curable liquid including at least one free radical polymerizable monomer or oligomer, at least one diffusion hindered acetalysation catalyst and at least one diffusion hindered hydroxyl containing compound. The radiation curable liquid applied to a substrate prevents migration of very low viscous monomers, such as vinyl ether acrylate monomers, into the substrate.
Abstract:
A system and a method for cleaning a printhead by providing from a first slot a laminar flow of cleaning fluid that flows through a pretensioned brush for brushing the nozzleplate and collecting debris. The cleaning fluid with the debris are drained by a first slit having a first underpressure and next by a second slot that has a second underpressure that is greater than the first underpressure.
Abstract:
The present invention relates to a curable jettable fluid for making a flexographic printing master characterized in that the jettable fluid comprises a monofunctional (meth)acrylate monomer, a polyalkylene glycol di(meth)acrylate monomer of which the polyalkylene glycol chain has a MW of at least 300 and at least 1 wt.% of a difunctional (meth)acrylate monomer according to Formula I or II,
wherein k and m in Formula I is an integer ranging from 0 to 5, l in Formula I is an integer ranging from 1 to 20, n in Formula II is 1, 2, 3 or 4, R in Formula I and II is H or CH 3 , and R' in Formula II is H or an alkyl group.