METHOD FOR PRODUCING POLYURETHANE PRECURSOR POLYOLS FROM NATURAL AND RENEWABLE RESOURCES, AND POLYURETHANES AND DEGRADABLE AND BIODEGRADABLE COMPOSITES PRODUCED THEREBY

摘要

The present invention relates to a method for producing polyurethane precursor polyols, comprising different synthesis products and mixtures thereof, followed by steps of dissolution and emulsification of monosaccharides, disaccharides and/or polysaccharides and/or mixtures and derivatives thereof, and use of micronised thermoplastics. The present invention describes the reaction of polyol with polyisocyanate to produce polyurethane, as well as the polyol for the polyurethane produced by said reaction of polyol with polyisocyanate, and compositions and products obtained after foaming, such as: disposables, packaging for the food industry, agro-industrial products, such as seedling growth and storage media, foam for flower arrangements, industrial filters, absorbents for chemicals, spill containment barriers, products for pets, such as cat and dog urine absorbent media, and raw materials for producing ceramic filters, inter alia.