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2,3-Dibromo-2-butene-1,4-diol (DBBD) was found to be one of the most effective bromine ame retardants (FR) used to prepare re-resistant polyurethane foams (PU).The production and application of DBBD is environmentally friendly.The compositions of DBBD with other ame retardants available on market: tri(2-chloropropyl)phosphate and 2-(2-hydroxyethoxy)ethyl-2hydroxypropyl-3,4,5,6-tetrabromophthalate were investigated.The environmentally friendly blowing agent -pentane was applied.Computer Statgraphics 2.0 programme was applied for generation of variable quantities of ame-retardants used to prepare PU foams.The obtained foams had characteristics of good re-resistant materials without worsening of other useful properties.Four stop-burning chemical structures: aliphatic bromine, aromatic bromine, phosphorus and also aliphatic chlorine caused synergistic effects in re-extinguishing.
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Brzozowski et al. (2002) studied this question.
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