Method for preparing an open porous polymer material and an open porous polymer material
AssigneeArtimplant AB
InventorsPer Flodin, Carl-Johan Aurell
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Abstract
A method for preparing an open pourous polymer material, comprises forming of a polymer solution, addition of a porogen to the polymer solution and precipitation with water of polymer from the polymer solution, and the method then comprises removal of solvent and porogen from the polymer material wherein the precipitation is homogenous through that the water is in form of crystal water and that the crystal water is bonded to the porogen, wherein the porogen is a sugar hydrate. An open porous polymer material, a mixture comprising a sugar hydrate and a polymer solution, and a designed material, and uses thereof are also disclosed.
Claims11
A method for preparing an open porous polymer material, comprising the steps of:
- forming a polymer solution;
- adding a porogen to said polymer solution;
- precipitating a polymer material from said polymer solution with water;
- and
- removing solvent and porogen from said polymer material to form said open porous polymer material, characterized in that precipitating said polymer material is homogenous by using water in crystal water form, and that said crystal water is bonded to said porogen, wherein said porogen is a sugar hydrate.
A mixture comprising:
- a porogen;
- and
- a polymer solution, wherein,
- the porogen is a sugar hydrate containing bonded crystal water,
- the polymer solution comprises a polymer dissolved in a solvent,
- the polymer precipitates in the presence of water, and
- the mixture is obtained by adding the porogen to the polymer solution.
Dependencies are inferred from the claim text.