ELECTRICAL ASSEMBLY WITH COATING Russian patent published in 2017 - IPC B05D7/00 B32B27/08 H05K3/28 

FIELD: chemistry.

SUBSTANCE: conformal coating obtained by a process comprising: (a) plasma polymerizing the compounds of formula , where R₁ is C₁-C₃ alkyl or C₂-C₃ alkenyl group, a R₂, R₃, R₄, R₅ and R₆ independently denote hydrogen atom, C₁-C₃ alkyl or C₂-C₃ alkenyl group, and the precipitation of the polymer obtained on at least one surface of the assembly; and (b) fluorocarbon plasma polymerization and deposition of the resulting polymer the polymer obtained in step (a). Also described is a version in which the hydrofluorocarbon polymer is precipitated first, and then it is precipitated polymer prepared from a compound of formula (I).

EFFECT: resulting coating has improved performance characteristics.

15 cl, 8 dwg, 3 tbl, 8 ex