SELF-EXTINGUISHING POLYURETHANES

The flame-retardant polyurethanes of the invention contain, as flameproofing agent, mixtures of hydroxyalkoxy-carrying oligomeric phosphoric acid esters of the formula I in which q is an average chain length of from 0.5 to 10, R1 is a hydroxyl-containing radical of the formula II a, R2 is a radical...

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Bibliographic Details
Main Authors STAENDEKE HORST DR, SICKEN MARTIN DR
Format Patent
LanguageEnglish
Published 12.07.1995
Edition6
Subjects
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Summary:The flame-retardant polyurethanes of the invention contain, as flameproofing agent, mixtures of hydroxyalkoxy-carrying oligomeric phosphoric acid esters of the formula I in which q is an average chain length of from 0.5 to 10, R1 is a hydroxyl-containing radical of the formula II a, R2 is a radical of the formula III R3 is a radical of the formula II b, R4 = R1 or R3; R5, R6 and R7 are a hydrogen atom or an alkyl radical from 1 to 6 carbon atoms, m is 0 to 4, and n is 1 to 4.
Bibliography:Application Number: CZ19940003175