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  Various Hexaarylbiimidazoles(HABIs) were newly synthesized. The authors studied the photoinitiation efficiency of HABI and hydrogen donor(HD) photoinitiator system and found the efficiency was improved by using electron-negative HABI and electron-releasing HD. Comparing the energy between and HOMO(HD) for a studied system, it was sugges

The surface of polystyrene was modified by the introduction of CN groups. The modification was achieved by irradiating the polymer with UV light (254 nm) in the presence of gaseous cyanogen bromide (BrCN). FTIR showed that CN groups were covalently bound to the polymer surface after irradiation. Quantitative XPS analysis revealed that upon prolonge

The Japanese economy was still on the decline in 1998 and this brought about an imbalance between supply and demand in many industries. As a result the capital investment for extension of capacity has also been in decline. This trend is exceptional where the capital investment brings higher value added products, where the new process enable the man

IKEA is a home furnishing company. Our vision is to contribute to a better everyday life for the many people. We do this by offering a wide range of home furnishing items of good design and function, at prices so low that the majority of people can afford to buy them. This is our business idea. Low price with a meaning. IKEA aims to have as short a

UV processes have a curing 'process window', where the appropriate UV level in the correct partsof the spectrum is required to activate the formulation to a sufficient level to be considered'cured'. This paper discusses some recent improvements in the measurement of UV radiationused in various curing processes and practical methods for acquiring re

Radiation curable powder coatings are now in the early stages of commercialisation. For years, the coating industry has sought ways to lower the curing temperature of powder coatings. The recently developed UV-curable powder coatings offer the possibility to cure powder coatings at temperatures is low as 100 -120°C. Another advantage of these radia

Detailed analyses of photo-cured vinyl ether blends with epoxysilicone polymers have confirmed prior reports that such compositions are useful radiation-cure release coating systems. We have found that release performance of such blended coatings are consistent with coatings' organic content, micromorphology, and thermomechanical properties. Reacti

It is well recognized that the photoinitiator represents the key component of any light curable formulation through radical process. Indeed, the photoinitiator is responsible for the absorption of the incident light radiation producing the primary radical species that initiate the conversion of multifunctional monomers, prepolymers and oligomers to