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Cationic Radiation curable silicones have been complemented by additional silicones in order to achieve special needs such as very low and stable release in front of agressive adhesives. We have developed epoxy silicone polymers with release values starting very low and increasing slightly with stripping speeds. The new system is targeted for use o

The accelerating effect of Lewis acids in photoinitiator free UV grafting and curing involving charge transfer (CT) complexes with cellulose and polypropylene (PP) as representative substrates has been investigated. The data have been compared with the use of photoiriitiators (Pis) in these systems, also the combined effects of P1 and Lewis acid. T

We investigated in this work the impact of particle size, size 'distribution, and siUca loading on film properties of UV-cured hybrid organic-inorganic thin coatings. Commercial silica organols ofhexanediol diacrylate monomer (HDDA) containing monodisperse silica nanospheres (13, 25 and 50 nanometers) were mixed with a polyester tetraacrylate (PEA)

Diacrylates are effective and frequently used reactive diluents in radiation curing formulations.Selection of an appropriate reactive diluent requires specific attention on the effects onviscosity cutting power, but also a careful assessment of the toxic and irritation potential of thediacrylate. Attention is directed in this presentation from conv

The previous paper has set out the basics of the chemistry for UV curing, outlined thebenefits and shown some market trends. This paper will demonstrate the requirements for the curing equipment needed for efficient polymerisation of the ink or coating chemistry..

Uv-curable powder is very well suited for coating 3-dimensional objects made from medium densityfibreboard (MDF), typically for use in kitchen, bathroom and general furniture applications. In thispaper, the advantagesand limitations of uv-powder over conventional adhesive laminates and liquiduv-coatings are outlined. The physical and chemical requi

The inhibitory effect of oxygen on the radical photopolymerization is well known. Oxygen reacts with carbon —centered propagating radicals at the diffusion-controlled limit to form peroxy radicals much less reactive towards double bond, thereby reducing the efficiency of initiation. This generally leads to significant retardation (or even inhibitio

Many polymers, especially those without functional groups like polyethylene PE, polypropylene PP,polytetrafluoroethylene PTFE etc., need a pretreatment to alter their surface properties in order to improve the adhesion to other materials which are applied by subsequent coating, printing or laminating process steps. Conventional surface modifying te