MULTILAYER INSULATION MATERIAL Russian patent published in 2024 - IPC E04B1/88 B32B5/22 

FIELD: construction materials.

SUBSTANCE: invention relates to the field of construction materials, in particular to the field of materials for heat insulation and insulation of frame-tent structures, and concerns a multilayer heat- and sound-absorbing material. Material includes one or more interconnected multilayer heat-insulating mats, which include one or more inner layers of insulation and one or more outer protective layers, wherein one or more inner layers of insulation are located between the outer protective layers, wherein the total number of layers in the multilayer heat-insulating mat is from 2 to 50, the total thickness of one mat is from 30 mm to 300 mm, insulation is made of material based on a mixture of fibres of two types or more, linear density of fibres in insulation is in range of 1.0⋅10^-5 to 1.5⋅10^-3 g/m, outer protective layer is made on the basis of material selected from polypropylene, glass fabric, polyvinyl chloride, tent fabric, synthetic fabric, natural fabric or mixed fabric, wherein inner layers of insulation and outer protective layers are jointed together by fasteners.

EFFECT: invention enables to obtain insulating materials for heat insulating frame-tent structures, which simultaneously combine high thermal resistance and sound absorption, stability of functional properties in various climatic conditions, safety during storage, handling and transportation, as well as simplicity and convenience of installation.

33 cl, 2 dwg, 2 tbl, 9 ex