BASE WITH A COATING OBTAINED USING WATER-SOLUBLE STOP AND PRIMING COMPOSITIONS Russian patent published in 2019 - IPC C08F265/00 C09D175/04 C09D133/04 B05D5/00 B05D7/14 

FIELD: construction.

SUBSTANCE: present invention relates to bases with multilayer coating obtained using primer and/or filler compositions. Multilayer coating includes base (A), primer composition (B), filler composition (C) and at least one upper layer (D). Said primer and filler compositions (B) and (C) comprise an aqueous curable film-forming composition comprising (a) a first component comprising an aqueous pigment dispersion and polymer particles, (b) a second component comprising a polyisocyanate cross-linking agent and optionally (c) a hydroxyl-functional water-dispersible acrylic polymer. Polymer particles have nucleus-shell morphology and are particles with a urethane shell or particles with an acrylic shell. Urethane shell of said particles contains a polyurethane or a copolymer containing urethane and urea groups, and the core is obtained from a mixture of monomers containing hydrophobic ethylenically unsaturated monomers. Acrylic shell of said particles is obtained by polymerization in an organic solution from a mixture of monomers containing hydrophilic ethylenically unsaturated monomers, and the core is obtained from a mixture of monomers which includes hydrophobic ethylenically unsaturated monomers. Obtained multilayer coatings include a water-based filler and primer compositions, the use of which results in obtaining coatings with similar properties to those based on solvents.

EFFECT: disclosed are bases with a coating obtained using aqueous filler and primer compositions.

19 cl, 10 tbl, 9 ex