| 摘要 |
FIELD: chemistry. ^ SUBSTANCE: invention relates to a method of producing polymer material, enriched with phosphorus, which is used as a fireproof additive. A method is described for producing fireproof polymer material in two stages by reacting initial reagents in a reactor. The first stage involves reacting anhydrous phosphorous pentoxide with a second reagent, chosen from a group consisting of (a) diol, which is 1,3-propanediol and 1,4-butanediol, and (b) a mixture of cyclic ether and alcohol, obtaining polymer precursor material. The second stage involves reacting polymer precursor material with cyclic ether, for example ethylene oxide, propylene oxide and/or glycidol, obtaining the final product. Described also is a fireproof composition, which contains polymer material in form of a salt, obtained by reacting phosphoric ester with an amine, chosen from melamine and polyethylenimine. ^ EFFECT: obtaining water-insoluble intumescent polymer material which promotes reduction of flammability. ^ 47 cl, 3 dwg, 5 tbl, 13 ex |
