Multi-staged polymers represent fairly new technology that involves a mixture of polymers with different Tg ranges, resulting in a mix of hard and soft segments.
Current work is focused on controlling the interfacial barrier to produce systems in which reactive species can be isolated in the same solution and then mixed upon application.
A new generation of hybrid waterborne alkyd dispersions has been specifically designed and developed to provide the best protection on horizontal and some vertical wood surfaces.
Part one of this article discusses the theory of optimizing applied hiding and new techniques used to characterize applied paint films to determine the influence of rheology on application.