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
CHEMISTRY
COMPOSITIONS BASED THEREON
COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
METALLURGY
ORGANIC MACROMOLECULAR COMPOUNDS
THEIR PREPARATION OR CHEMICAL WORKING-UP
USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS
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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