METHOD FOR PRODUCING MULTILAYERED PAINT SYSTEM Russian patent published in 2018 - IPC B05D7/00 C08F283/00 C08F290/06 C08G18/08 C08G18/10 C08G18/32 C08G18/34 C08G18/42 

FIELD: paint industry.

SUBSTANCE: present invention relates to a process for producing a multilayer paint system on a metal substrate, where the base coating or several directly applied base coatings are directly produced on a metal substrate coated with hardened electroplating, a coating lacquer is applied directly to one base coating or to the uppermost of several base coatings, and then one or more base and varnish coatings cure together, and wherein at least one base coating material that is used to make the base coatings comprises at least one unbranched hydroxy-functional reaction product (R) which has an acid number that is less than 20 mg KOH/g, which comprises using at least one compound (v) comprising two functional groups (v.1) and an aliphatic or araliphatic hydrocarbyl radical (v.2), which is located between the functional groups and has 12 to 70 carbon atoms.

EFFECT: improved quality of coatings.

16 cl, 3 dwg, 6 tbl