BAGS CONTAINING WATER-SOLUBLE FILM MADE FROM POLYMER MIXTURES OF POLYVINYL ALCOHOLS Russian patent published in 2019 - IPC C11D17/04 B65D65/46 C08L29/04 C08K5/53 C08J5/18 

FIELD: chemistry.

SUBSTANCE: invention relates to bags containing water-soluble film and composition. Described is a bag for packaging compositions containing detergent for washing or dishwashing containing a water-soluble film and composition for domestic use, at least partially enclosed by a water-soluble film in at least one compartment, wherein the water-soluble film contains a mixture of polyvinyl alcohol resins (PVA), containing: first PVA-polymer containing carboxylated anionic monomer links and monomer units of vinyl alcohol, wherein the carboxylated anionic monomer link is present in the first PVA polymer in amount of 3 mol. % to 6 mol. %, and wherein the carboxylated anionic monomer link is obtained from the monoalkyl maleate; second PVA polymer consisting essentially of vinyl alcohol monomer units, wherein the first PVA-polymer is present in amount of 10 wt. %. up to 50 wt. % of total content of PVA-polymers in film.

EFFECT: technical result is bags have good solubility in water and proper strength.

20 cl, 3 ex, 10 tbl