Knowledge base

During the past year, a new UV Powder resin system, developed for applications on wood, was presented on several 23 The technological benefits and performance of this system on MDF (pigmented textured finish), natural wood and veneered composite board (matt / semi-gloss clearcoat) have been published in the September issue of "The European Coatings

 Interpenetrating polymer networks (IPN) can be readily synthetized by crosslinking polymerizationof two multifunctional monomers or telechelic oligomers that polymerize by different mechanisms, e.g. radical and cationic types. The main advantage of IPNs is to combine in a single material the properties of the two kinds of polymer networks. An

A blend of 4 - benzoyl biphenyl (BBP) and a maleimide (Ml) was found to be an excellent photoinitiator for curing a variety of formulations. It was found that a combination of the BBP I Ml blend and an oligomeric amine synergist resulted in a very efficient photoinitiating system. It was found that for some formulations, cure speeds obtained using

In recent years photo-polymerization has attracted much attention because of its increasing technical importance in, various. Much effort has been devoted to free radical photoinitiatedpolymerization, mainly due to the availability of a wide range of photoinitiators. For specificapplications this key component has often to be adapted. The spectral

In radiation curing, typical reactive sites accessible to conversion are acrylate double bonds, vinyl groups oroxirane moieties. In a photoinitiated polymerisation reaction the reactive sites are consumed during chaininitiation and propagation until all reactive sites have been reacted, or more realistically, until conversion hasstopped. In the lat

The current work concerns using the Photo-DSC technique to study the rates of photoinitiator free copolymerisation of donor/acceptor pair involving N-vinylpyrrolidinone (NVP), an electron-rich donor and a water-soluble N-substituted maleimide (MI) in the presence of hydrogen donors, in order to evaluate their efficiencies as hydrogen donors. The pr

Vinyl ethers are well established as radiation curable materials exhibiting a wide diversity of chemistry 1]. A good selection of reactive monomers and prepolymers is commercially available. These materials possess several attractive features such as low toxicity and high reactivity. The cationic cure (both uv and eb initiated) of these materials i

       Surface coatings have two functions: to decorate and to protect. So that coatings perform these functions for as long as possible we to try to devise ways of minimizing the mechanical erosion towhich they are subjected. Radiation-cured systems have made big gains in the coatings market inrecent years. Today