HOMOGENEOUS POLYMER MIXTURE, METHOD OF ITS PREPARATION AND ITS APPLICATION Russian patent published in 2024 - IPC C08L1/14 C08L67/02 C08K3/36 C08K5/10 B65D65/38 

FIELD: homogeneous polymer mixture.

SUBSTANCE: group of inventions relates to a homogeneous polymer mixture containing a polymer composition, its application, as well as to a transparent material for packaging products containing a homogeneous polymer mixture, a packaging product and a method for manufacturing a packaging product. A homogeneous polymer mixture for the manufacture of a packaging product contains a polymer composition, where the specified composition contains cellulose acetate propionate (APC) in an amount from 55 to 95 wt.% and polybutylene succinate (PBS) in an amount from 5 to 40 wt.%. The total amount of said cellulose propionate acetate and said polybutylene succinate is at least 80 wt.%, based on the total weight of the polymer composition, while the specified homogeneous mixture is obtained by processing the specified polymer composition at a temperature of at least 210 °C, while the specified cellulose acetate propionate has an average the molecular weight is from 85,000 to 110,000 Da, and the acetyl content is from 0.8 to 2.0 wt.%, and/or propionyl content from 30 to 51 wt.%, and/or hydroxyl content from 1.0 to 2.5 wt.%, and at the same time, the specified polybutylene succinate has an average calculated molecular weight from 30,000 to 100,000 Da.

EFFECT: technical result is the provision of a homogeneous polymer mixture based mainly on renewable materials, the properties of which are similar or better than those of packaging materials based only on fossil resources, in addition, an environmentally safe version of the packaging material is provided.

40 cl, 1 dwg, 9 tbl, 12 ex