ANTI-CORROSION COATING OF SELF-POLISHING TYPE WITH ENCAPSULATED BACTERIAL EXTRACT Russian patent published in 2023 - IPC C09D5/16 C09D193/04 C09D4/02 

FIELD: chemistry.

SUBSTANCE: invention relates to means of protection against fouling and corrosion and can be used in the chemical industry for the production of paint coatings to protect the underwater part of ships, oil platforms and berthing facilities. Self-polishing anti-fouling anti-corrosion coating based on rosin, acrylic copolymer, pigment selected from the range of TiO₂, Fe₂O₃, Cu₂O, ZnO, СаСО₃ filler, xylene solvent, contains as a biocide an extract of Pseudoalteromonas piscicida 2202 strain, whereas the extract of Pseudoalteromonas piscicida 2202 is used in the form of microcapsules with a shell of silica or urea-formaldehyde polymer with the following content of components per 10 ml of xylene: acrylic copolymer - 1.5 g, rosin - 2 g, pigment - 2 g, CaCO₃ - 1 g, microcapsules with bacterial extract - 5 by % of weight.

EFFECT: paint coating with a slow biocide release, which increases the service life of the coating.

1 cl, 2 ex