THE USE OF BUTYLENE OXIDE (BO) BASED POLYOLS TO IMPROVE THE COMPATIBILITY OF PENTANE AND CYCLOPENTANE IN RIGID POLYURETHANE FOAMS
摘要
The present invention is a formulated polyether or polyester polyol blend that is useful for preparing polyurethane and polyisocyanurate foams. The formulated polyol blend 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.
申请公布号
WO9827132(A1)
申请公布日期
1998.06.25
申请号
WO1997US23803
申请日期
1997.12.19
申请人
THE DOW CHEMICAL COMPANY;BHATTACHARJEE, DEBKUMAR;LATHAM, DWIGHT, DAVID;NELSON, GILBERT, L.;LEIGON, C., R.
发明人
BHATTACHARJEE, DEBKUMAR;LATHAM, DWIGHT, DAVID;NELSON, GILBERT, L.;LEIGON, C., R.