This book includes reviews on the ozone influence on natural and synthetic rubbers, interactions between micro-organisms and polymers, chitosan (natural polysaccharide) oxidation, nano-phases and kinetic model of chain reactions of polypropylene with peroxides, heat stability of vinylchloride polymers subjected intensive force influences of the pressure with shear type, bio-damages of materials and adhesion of micro-organisms on materials surface, intensification of dust removal process, stationary kinetics of the linear polymerisation till the high conversions, stationary kinetics of 3D polymerisation till the high conversions, and the study of the grossing process in the grosses of fluted type.