CURABLE FILM-FORMING COMPOSITIONS CONTAINING LITHIUM SILICATES AS THE CORROSION INHIBITORS AND COATED MULTI-LAYER METAL SUBSTRATES Russian patent published in 2019 - IPC C09D5/08 B32B15/08 C08K3/34 C09D7/61 C08K3/105 C08L63/00 

FIELD: metallurgy.

SUBSTANCE: invention relates to the multilayer metal substrate with a coating comprising the metal substrate; deposited onto the said metal substrate the first curable film-forming composition; and the second curable film-forming composition applied above, of at least part of the first curable film-forming composition. First and second cured film-forming compositions independently comprise: curable organic film-forming binder component and containing lithium silicate, magnesium oxide and/or azole the corrosion inhibiting component.

EFFECT: lithium compound (lithium silicate and/or lithium salt), magnesium oxide and/or an azole containing corrosion inhibitor introduction into the curable film-forming compositions enables the multilayer composite coatings increased corrosion resistance.

4 cl, 21 tbl