COAT SYSTEM FOR ARTICLES OF COLD DARK COLOUR, AND METHOD TO CONTROL ARTICLE TEMPERATURE INCREASE Russian patent published in 2011 - IPC B05D5/06 

FIELD: process engineering.

SUBSTANCE: invention relates to dark-colour coats with minimum absorption of radiation in near IR spectrum, and may be used in automotive coats, construction paints, industrial coats, spacecraft coats and flexible coats. Proposed system comprises first IR-reflecting layer that contains IR-reflecting pigments in gummy binder. Second layer absorbing visible radiation features dark colour and is IR-translucent. Second layer comprises a shade in gummy binder and nano-sized pigments with mean particle size of 100 nm. Coated article comprises multilayer coat system. Method of controlling temperature increase in substrate subjected to IR radiation comprises applying composition of IR-reflecting coat on substrate, to make the first layer, and applying second layer of composition absorbing visible radiation and identical to second layer in multilayer dark composition. In compliance with second version, aforesaid shade may also have maximum milkness of 1 %, while coat system features blackness index of, at least, 240. Coated article comprises above described coat system.

EFFECT: coat system does not absorb IR-radiation.

22 cl, 1 dwg, 6 tbl, 16 ex