SINGLE-STEP METHOD OF PRODUCING POLYLACTIDE-BASED NONWOVEN MATERIAL AND NONWOVEN MATERIAL Russian patent published in 2013 - IPC C08G63/00 C08G63/08 C08G63/80 B82B3/00 

Abstract RU 2500693 C1

FIELD: chemistry.

SUBSTANCE: method is realised via polylactide-based melt electrospinning. Catalytic synthesis of (co)polylactide is carried out in an extruder reaction zone. The starting monomer used is lactides or mixtures thereof with glycolides. The obtained nonwoven material consists of polymer fibres with average diameter from 1 to 20 mcm and is characterised by surface density of 5-50 mg/cm2 packing density of 0.05-0.25 g/cm3.

EFFECT: obtaining fine-fibred biodegradable nonwoven material which does not contain a residual solvent, using a single-step continuous melt electrospinning process.

7 cl, 1 dwg, 2 tbl

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RU 2 500 693 C1

Authors

Chvalun Sergej Nikolaevich

Belousov Sergej Ivanovich

Malakhov Sergej Nikolaevich

Sedush Nikita Gennad'Evich

Grigor'Ev Timofej Evgen'Evich

Dates

2013-12-10Published

2012-11-30Filed