| abstract |
FIELD: chemistry. n SUBSTANCE: invention discloses a composition Binder for lignocellulosic material or mineral fibres, which contains an organic polyisocyanate obtained from diphenylmethane diisocyanate (MDI) and/or their oligomers, compound, reactive for isocyanate, representing an aromatic compound oligoetherpolyol, water and an alkali metal salt of carboxylic acid as catalyst accelerating isocyanate trimerization. Invention also discloses a method of producing Binder composition, method of producing bound mineral fibre product and method of producing bound lignocellulose product. Also described is a product of mineral fibre. n EFFECT: technical result consists in obtaining finished material with improved resistance and/or strength. n 15 cl, 1 tbl, 1 ex |