PROTECTIVE COATING COMPOSITION Russian patent published in 2010 - IPC C09D163/02 

FIELD: chemistry.

SUBSTANCE: invention relates to preparation of epoxy resin based protective polymer coatings which are meant for protecting components of structures made from aluminium alloys and steel from abrasive wear during operation. The protective coating composition contains the following (pts. wt): epoxy diane resin - 100.0, amine type hardener 10.0-50.0, modifier - low-molecular epoxyurethane, polysulphide or butadiene-acrylonitrile rubber in amount of 5.0-40.0 pts. wt, filler - fine-grained quasicrystalline metal filler of the Al-Cu-Fe system, micro-reinforcing filler in fibre or plastic form, selected from a group comprising natural or synthetic magnesium, aluminium or calcium silicates, quartz dust or their mixture in amount of 20.0-100.0 and an organic solvent 200.0-420.0. The amine type hardener is a polyamide resin or an organosilicon amine or their mixture. The composition can also contain flattening agents in amount of 15.0-35.0 pts. wt and pigments in amount of 5.0-40.0 pts. wt.

EFFECT: increased hardness, elasticity, moisture resistance, resistance of the coating to temperature differences of up to 150°C while retaining high level of adhesion to aluminium alloys, different steels, polymer composite materials and impact strength.

4 cl, 5 ex, 2 tbl