METHOD OF PRODUCING POLYMER MATERIAL Russian patent published in 2009 - IPC C08G79/04 C07F9/09 C08K5/521 C08L85/02 C09K21/12 

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