PROTECTIVE COATING COMPOSITION Russian patent published in 2010 - IPC C09D127/12 

FIELD: chemistry.

SUBSTANCE: invention relates to polymer compositions based on fluorine-containing polymers for making weather-resistant coatings used for protecting structures made from aluminium, magnesium alloys and steel, polymer composite materials (PCM). The protective coating composition contains the following, pts. wt: fluoropolymer 0.9-0.95, epoxy-diane resin with molecular weight 900-1800 or fluoroepoxy resin 0.05-0.01, hardener - polyisocyanatebiuret 0.07-0.19, γ-aminopropyltriethoxysilane 0.01-0.04 and organic solvent - mixture of xylene and ethyl cellosolve with a solvent selected from a group comprising buthylacetate, ethylglycolacetate, methoxypropylacetate or their mixture 0.5-1.0. To further increase resistance to UV radiation, the composition may contain a light stabiliser in amount of 0.1-0.3 pts. wt, and to increase corrosion resistance in aggressive media, as well as imparting decorative properties to surfaces of objects, pigments are added in amount of 0.5-1.5 pts. wt.

EFFECT: polymer coating hardens fast, has high impact strength, low water absorption, increased resistance to UV radiation, water resistance.

5 ex, 2 tbl