METHOD OF OBTAINING POROUS POLYMER BIODEGRADABLE PRODUCTS FOR OSTEANAGENESIS Russian patent published in 2008 - IPC C08G63/08 C08L101/16 A61L27/58 

Abstract RU 2327709 C2

FIELD: chemistry.

SUBSTANCE: effect is achieved by using compositions based on different stereoregular amorphous biodegradable polymers - polylactides and copolymers of lactides with glycolides (18-72 mass ratio) as the second component of biocompatible mineral filler - hydroxyapatite with particle size of the main fraction of 1-12 mcm (8-41 mass ratio), as well as an organic solvent with boiling temperature equal to or higher than softening temperature by 3-20°C (20-41 mass ratio). After preparation of a homogenous mixture, the composition is undergoes thermal treatment at 80-130°C in a vacuum in a shaping vessel with the required shape. A porous product is obtained due to removal of solvent. Density of the obtained porous product is about 0.4-0.8 g/cm3.

EFFECT: design of a method of obtaining porous biodegradable composite polymer products based on polylactides or copolymers of lactides and gylcolides.

3 cl, 3 ex

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RU 2 327 709 C2

Authors

Krasnov Aleksandr Petrovich

Afonicheva Ol'Ga Vladimirovna

Solov'Eva Vera Aleksandrovna

Shorstov Jakov Viktorovich

Topol'Nitskij Orest Zinov'Evich

Volozhin Aleksandr Il'Ich

Ul'Janov Sergej Aleksandrovich

Tarabukhina Anastasija Ivanovna

Dates

2008-06-27Published

2006-06-23Filed