Title:
PROCESS FOR PREPARING A POROUS LAYER
Document Type and Number:
WIPO Patent Application WO/2014/049055
Kind Code:
A3
Abstract:
The present invention relates to a process for preparing a porous layer of biocompatible polymer, having a uniform density and porosity, comprising the following steps: - a) a quantity Qp of solution of the said polymer, having a viscosity Vp, is poured into a mould in order to form a first sublayer, the surface of the first sublayer being left to the open air; - b) a quantity Qs of solvent, having a viscosity Vs, lower than Vp, is spread uniformly over the surface of the first sublayer so as to form a second sublayer; - c) the first and second sublayers are subjected to a step of lyophilisation, in which the said polymer is a polysaccharide chosen from hyaluronic acid, alginic acid and chitosan, salts thereof and mixtures thereof.
Inventors:
LADET SÉBASTIEN (FR)
PROST NICOLAS (FR)
PROST NICOLAS (FR)
Application Number:
PCT/EP2013/070070
Publication Date:
December 24, 2014
Filing Date:
September 26, 2013
Export Citation:
Assignee:
SOFRADIM PRODUCTION (FR)
International Classes:
C08J9/28; A61L27/20; A61L27/56; A61L31/04; A61L31/14; C08J5/18
Foreign References:
| US20080242850A1 | 2008-10-02 | |||
| US4034032A | 1977-07-05 |
Attorney, Agent or Firm:
CABINET GERMAIN & MAUREAU (Lyon Cedex 06, FR)
Download PDF:
Previous Patent: METHOD FOR PRODUCING AN OPTOELECTRONIC ASSEMBLY, AND OPTOELECTRONIC ASSEMBLY
Next Patent: FIBER-OPTIC CONVERSION MODULE
Next Patent: FIBER-OPTIC CONVERSION MODULE