FIELD: construction.
SUBSTANCE: sandwich element comprises a first coating layer and a second coating layer, between which a polyurethane core is disposed. A sublayer is located between the foam plastic core and at least one of the coating layers. At least one sublayer is made of polyurethane and has a higher mass density than the mass density of the polyurethane core. At least one sublayer from the first reaction mixture is applied with a first mixing head and a pouring comb or a spray head separately from the second reaction mixture with a second mixing head and a pouring comb or a spray head to form the foam polyurethane core.
EFFECT: creating a composite structure for the thermal insulation of building walls, having high thermal insulation properties and increased mechanical rigidity.
14 cl, 3 dwg
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RU2604626C2 |
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RU2743348C1 |
