METHOD OF PRODUCING BIOCIDAL FILM FROM COLLAGEN WITH PECTIN Russian patent published in 2025 - IPC C08J5/18 A61L15/18 A61L15/28 A61L15/32 

FIELD: chemistry.

SUBSTANCE: invention relates to production of materials based on natural polymers. Method of producing a film with biocidal properties involves mixing water, collagen, pectin and RbTe_1.5W_0.5O₆ powder in a stream of argon for 15-20 minutes, and then in a current of argon for 5.0-5.5 hours while irradiating using a LED visible radiation lamp, 30 W, then solid powder is separated by centrifugation for 30 minutes, water phase is decanted, obtained film-forming solution is applied on levelled glass plate and dried to constant weight. Components are mixed at the following ratio, wt.%: distilled water – 89.53-89.50, collagen – 4.80-5.00, pectin – 4.80-5.00, RbTe_1.5W_0.5O₆ powder – 0.67-0.70.

EFFECT: method makes it possible to simplify production of biostable material due to simple equipment, to reduce cost of process due to reduction of concentration of particles of special additive, and also provides broader biocidal properties, antibacterial properties and effectiveness against spores of micromycetes of the obtained film.

1 cl, 3 dwg, 2 ex