KEYWORDS: Hair styling polymer, polyurethane, water-based styling formulations, high humidity resistance, 3-point bending force, flexibility.
ABSTRACT: Polyurethane-35 is a new generation of polyurethane hair fixative polymer, designed for use in waxes, creams mousses and other water-based styling products. Formulations with this new polymer exhibit very strong hold, unmatched high humidity resistance and excellent shape memory effect without compromising aesthetics. In addition, styling properties and aesthetics are not affected at high humidity conditions, allowing the use of Polyurethane-35 in arid and in humid climatic conditions as well.

INTRODUCTION
Grooming routines are changing around the world, leading to new consumer demands for hair styling products.  Many of them still contain traditional hair fixative polymers, such as Polyvinyl pyrrolidone (PVP)-based polymers, which are mainly responsible for styling performance. Although these traditional hair fixative polymers impart strong hold, there is still room for improvement. They tend to ha ...
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