Polyols

Oligomeric and polymeric polyols are an important group of functional resins used in the manufacture of many products. They are typically viscous liquids or waxy solids, depending on molecular weight, backbone type, and hydroxyl content. The five most important types of polyols are polyether, polyester, polybutadiene, polycarbonate and polyacrylate polyols. The latter two are used on a much smaller scale because they are more expensive and are typically chosen where superior weather and/or heat resistance is important.
Polyols are very important components of polyesters and polyurethanes. As chain extenders, they greatly control the mechanical, thermal and physical properties and can reduce the overall cost. For example, oligomeric polyether polyols are known to greatly improve the flexibility and stiffness of polyesters and polyurethanes, while monomeric polyols are known to produce tougher polymers due to their low equivalent weight.
FEATURES
Since the term generic polyol derives only from the chemical nomenclature and indicates the presence of only a few hydroxyl groups, common properties cannot be assigned to all polyols. The performance properties of polyurethanes are sometimes modified by various additives, for example to increase strength, stiffness or flexibility. However, it is generally highly viscous (when polymeric) at room temperature.
usage areas
Polyols are alcohols with more than one hydroxyl group and form one of the main raw materials for polyurethane production.
Polyether Polyols are useful in the manufacture of high strength, flexible molded foams and can be used to formulate coatings, adhesives, sealants and elastomers.
Polyether Polyols facilitate compliance with regulatory standards and offer excellent fire retardant properties, ultra-low emissions and increased comfort levels in flexible foams for furniture, bedding and seating applications.
Active Additive Polyols help reduce or eliminate catalyst addition while forming consistent, high-quality bonds and providing resistance to serious elements such as moisture, heat, fog, oil and water exposure.