Knowledge base

Powder coatings are very attractive, environmentally friendly alternatives to liquid finishes since they are VOC-free. Resins that cure under UV light have already been developed for applications in powder coatings. Most studies deal with acrylic materials or unsaturated polyesters for free radical mechanism and epoxy materials for cationic mechani

In the present work, the photopolymerization kinetics has been studied by real-time infrared spectroscopy (RT-FTIR) and in situ dielectric analysis (DEA) . We were able directly correlate the dielectric properties of resins studied and the monomer conversion during the irradiation time. By monitoring changes in the electrical properties of the UV c

Prime IT technology allows lamination of films on virtually any kind of plastic material, including critical cases of chemically incompatible polymers, which have to be sandwiched together and where conventional laminating adhesives fail. The benefits of radiation curable laminating adhesives includes 100% solventless systems, lower energy consumpt

UV dual cure systems are becoming more interesting especially when dealing with the latest activities developing UV curable automotive coatings. The shadow regions on 3D substrates can be cured by the UV independent thermal curing mechanism. Also the perspectives for pigmented UV coatings should increase. An isocyanato acrylate resin based on an al

UV-curable inks and varnishes have been one of the fastest growing technologies in the past two decades. This growth is forecast to continue well into the future with the development of new applications for UV curing, such as inks for food packaging. New raw materials are required to ensure that UV-technology can meet the challenging demands of low

Multifunctional thiols, when combined with either electron rich or electron poor enes polymerize rapidly and efficiently to give films with reduced adhesion problems and excellent mechanical properties. The main body of literature on thiol-ene photopolymerization is summarized in a detailed review article by Jacobine.' In general, thiol-ene systems

The implementation of the VOC Directive in the furniture sector is a big challenge for the industry.Companies must apply this regulation by October 2005 or, with an extension, by October 2007. At present, different countries are carrying out studies to determine the situation of the different sectors (home, kitchen, seats, office, contract.) Many c

Radiation-curable coatings based on polyether, polyester, or urethane acrylates offer a wide range of properties. The mechanical hardness and the elasticity of UV-coatings depend on the chemical type of acrylate resin. Polyester acrylates combine good abrasion resistance with high toughness, whereas polyether or urethane acrylates provide flexibili