BINDERS AND ASSOCIATED PRODUCTS Russian patent published in 2018 - IPC C07H5/04 C03C25/26 

FIELD: chemistry.

SUBSTANCE: invention relates to a method for manufacturing heat insulating materials using a pre-reacted binder composition. Proposed method comprises producing a water-soluble pre-reacted binder composition comprising the reaction products of reducing sugar and primary polyamine, being a prepolymer having a molecular weight of 1 to 500 kDa, in an amount of at least 2 wt%, based on the total weight of the composition, with a weight ratio of reducing sugar and polyamine of 0.5:1–30:1, said composition in the form of a solution or dispersion with a concentration of not more than 80 wt.% are applied to a plurality of different materials selected from mineral fibers, slag wool fibers, basalt wool fibers, glass fibers, aramid fibers, ceramic fibers, metallic fibers, polyester fibers, wood shavings, sawdust, wood pulp, wood pulp, wood chips, wood sheets, wood chips, jute, flax, hemp, straw, veneer, chips and wood shavings, and is further heated. Proposed is a novel effective method for producing heat insulating materials comprising using a binder composition that is well stored and transported, as well as new products obtained by said method.

EFFECT: binders and associated products are proposed.

14 cl, 18 dwg, 10 tbl, 8 ex