INTRODUCTION
Hair styling products can be classified in 4 categories: sprays, gels, mousses and novelties including products like wax,pomade, lotion etc. The global hair styling market is dominated by hair spray products, including aerosol based productsand pump sprays. A multitude of spray formulations is offered on the market fulfilling different needs: Regulatory rulesconcerning volatile organic compound (VOC) concentration, consumer needs depending of the hair structure and theclimatic conditions, consumer preference and styling trends. To satisfy a variety of complex requirements throughout theworld, a wide range of styling polymers is proposed for spray formulations. Traditionally, the styling polymers are based onvinylpyrrolidone, vinyl acetate or acrylate chemistry. ...