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Use of bo polyols to improve compatibility of pentane and cyclopentane in rigid polyurethane foams
Use of bo polyols to improve compatibility of pentane and cyclopentane in rigid polyurethane foams
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机译:使用硼多元醇改善硬质聚氨酯泡沫中戊烷和环戊烷的相容性
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摘要
The present invention is a polyol mixture that is useful for preparing polyurethane and polyisocyanurate foams. The polyol mixture of the present invention includes: a polyol that is derived from butylene oxide; and a hydrocarbon blowing agent such as pentane or cyclopentane, for example. Use of butylene oxide polyols of the present invention allow inclusion of a sufficient amount of a hydrocarbon blowing agent to produce foams having low density, without incorporating a higher concentration of water into a polyurethane foam formulation.
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