Premixing of polyol for the production of flame-resistant polyurethane foams
Номер патента: DE3362102D1
Опубликовано: 27-03-1986
Автор(ы): Franz-Josef Dr Dany, Horst Dr Staendeke, Joachim Dr Kandler
Принадлежит: Hoechst AG
Опубликовано: 27-03-1986
Автор(ы): Franz-Josef Dr Dany, Horst Dr Staendeke, Joachim Dr Kandler
Принадлежит: Hoechst AG
Реферат: The disclosure relates to a storable polyol pre-mixture for making flame-retardant polyurethane foam plastics consisting of a mixture of a polyester polyol or polyether polyol and an ammonium polyphosphate as a flame-retardant agent. The pre-mixture contains more particularly an ammonium polyphosphate which corresponds to the general formula (I) H(n-m)+2(NH4)mPnO3n+1 (I) in which n stands for an integral average value of 100 to 1000, m stands for a whole number of up to n+2 and m/n stands for a value of about 1, has an acid number of 0.01 to about 5 mg KOH/g, contains 0.01 to 0.5 mass % water and 0.5 to about 15 mass % water-soluble fractions in water at 25 DEG C.
Reduced-friability, highly cross-linked, flame- resistant, polyurethane foams
Номер патента: CA1090048A. Автор: Donald L. Vargo,Henry S. Hopkins, Jr.. Владелец: General Latex and Chemical Ltd. Дата публикации: 1980-11-18.