The use of polyols based on butylene oxide (Bo) to improve the compatibility of pentane, cyclopentane polyurethane foams rìgidas, products obtained and processes for obtaining

摘要

"The use of polyols based on butylene oxide (Bo) to improve the compatibility of pentane, cyclopentane polyurethane foams ru00ecgidas, products obtained and processes of production.The present invention is a mixture of polyether or polyester polyols formulated that is useful for preparing polyurethane and polyisocyanurate foams.The mixture of polyols of the present invention includes: a formulated polyol that is derived from a butylene oxide; and a hydrocarbon sopramento agent such as pentane or cyclopentane.The use of butylene oxide polyols of this invention allows to include a sufficient amount of an agent of sopramento hydrocarbon to produce foams having a low density.Without incorporating a high concentration of water to the formulation of polyurethane foam.