Patent ID: 11884817
Assignee: PANARA, A.S.
Field: Macromolecular chemistry, polymers (Chemistry)
Classification: CPC C | IPC C

Claim 2:
3. The method for preparation of the biodegradable polymer blend of claim 2, further comprising a multiple step method of production, and hot-melt of the blend containing at least one component (A) and at least one component (B) without presence of component (D) is, without removal of an amount of water on output from the given blend step, cooled by liquid or gas, and granulated, and the produced pellets are fed to the next blending step, wherein also a polymer from the group (D) is added to the blend together with the pellets, or the polymer from the group (D) is added to the blend no later than the penultimate blending phase of the given blending step, and the amount of humidity is removed by atmospheric or vacuum degassing before the completion of the last blending step, prior to output from the blending device, and the produced blend in a form of hot-melt is then:
(i) cooled by liquid or gas and granulated
(ii) or lead to an extruder die for producing final products or intermediates.