FIELD: chemistry.
SUBSTANCE: composition for an emissive coating in dispersion contains, g/l: a) 50-300 at least one of transparent or translucent organic polymer substances of a binder, selected from dispersions based on ethylene-acrylic copolymer or hydroxylate acrylic emulsions and dispersion based on ethylene-acrylic copolymer, b) 30-300 layered silicate pigments which have a coefficient of thermal radiation the at least equal to 0.40, and have a distribution of particle size d50 in the range of 0.3 to 80 microns, and which were pulverized and/or disintegrated, and/or exfoliated to thin particles. The method of applying transparent or translucent and colourless emissive coating is described, especially for cold roofs on a metal surface, in which the composition of the invention is applied on a metal surface, where it is dried, and where this dried coating has a coating weight in the range of 0.2 to 2000 g/m2. An emissive coating, a cold element like cool roofing elements and applying transparent or translucent and colourless emissive coatings on various substrates are also described.
EFFECT: providing transparent or translucent emissive coatings with improved corrosion resistance and having a coefficient of heat radiation TE equal to 0,5 to 0,9, the full reflection of sunlight TSR is in the range of 0,6 to 0,8.
29 cl, 7 tbl
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Authors
Dates
2018-01-22—Published
2011-10-26—Filed