WATER-DISPERSIBLE THERMOPLASTIC COMPOSITION MOULDED BY CASTING UNDER PRESSURE Russian patent published in 2017 - IPC B29C45/00 C08J3/03 C08J3/18 C08J5/00 C08L1/08 C08L101/14 

FIELD: chemistry.

SUBSTANCE: invention relates to a water-dispersible composition for producing a moulded part of an article. The composition contains from 7 to 70 wt % of, at least, one cellulose derivative, where, at least, one cellulose derivative is hydroxypropyl methylcellulose; from 7 to 70 wt % of, at least, one synthetic water-soluble polymer and from 2 to 50 wt % of, at least, one plasticiser based on the total weight of the composition, where the ratio of the weighted proportion of synthetic water-soluble polymer and cellulose derivative is in the range of 0.1 to 10, additionally, where the composition is thermoplastic. The invention also relates to a moulded article comprising the said composition, and preferably where the moulded article is destroyed in immobile tap water for less than 18 hours. The moulded article is a tampon applicator. The invention also relates to a method of producing a part moulded by casting. The method includes the introduction of water-dispersible thermoplastic composition specified into the mould cavity and forming a thermoplastic composition into a moulded part inside the mould cavity. In addition, the method comprises applying a water insoluble coating to the part moulded under pressure.

EFFECT: improving the compound properties.

20 cl, 4 dwg, 8 tbl