HEAT-INSULATING AND SOUND-INSULATING MATERIAL ON NON-PHENOL FORMALDEHYDE BINDER Russian patent published in 2016 - IPC C08L29/04 C08L3/04 C03C25/10 C03C25/26 C03C25/32 D04H1/64 

FIELD: technological processes.

SUBSTANCE: invention relates to heat-insulation and sound-insulation material and method for its production. Material contains mineral fibres with diameter from 0.5 to 10.0 mcm and binding agent produced by hardening aqueous composition containing polyvinyl alcohol, modified starch, silane, waterproofing emulsion, sealer and nano- or microparticles. Heat- and sound-insulating material contains said components at following ratio, wt%: mineral fibres 92.0-98.0, binder 0.95-7.00, including polyvinyl alcohol 0.72-4.00, modified starch 0.01-3.00, silane 0.01-0.20, waterproofing emulsion 0.10-1.40, sealer 0.10-1.00, nano-or microparticles 0.01-1.00. Nano- or microparticles are made of at least one material selected from a group comprising graphite, fullerenes, carbon nanotubes, clay, particles of metals and their alloys, carbides and oxides, silicon dioxide. Binder may additionally contain a cross-linking agent. Described also is a method of producing heat- and sound-insulating material by application of composition of binding on mineral fibre and its hardening in presence of a cross-linking agent at temperature of 210-240 °C.

EFFECT: high water resistance and mechanical strength of material, compression strength after sorption moistening, as well as high heat-insulating properties due to reduction of its thermal conductivity.

8 cl, 10 tbl, 7 ex