Interaction between hypophosphorous acid salts and isocyanates and possibilities of using them as flame retardants for rigid polyurethane foams

Synthesis of phosphorylated esters and o

Synthesis of phosphorylated esters and oligoesters, prepared from unsaturated acids and glycols, and their use as flame retardants for rigid polyurethane foams

✍ G. Borisov; V. Doseva; K. Todorov 📂 Article 📅 1988 🏛 Elsevier Science 🌐 English ⚖ 262 KB

A~tract--Unsaturated esters and oligoesters of itaconic and methacrylic acid have been synthesized through transesterification of dimethyl itaconate and methyl methacrylate with ethylene glycol and diethylene glycol. Dialkyl phosphites and bis(~o-hydroxyethoxyethyl)phosphite have been added to the d