Production of materials having an anisotropic structure
AssigneeJulius-Maximilians-Universitaet Wuerzburg
InventorsKai Stuckensen, Uwe Gbureck, Juergen Groll
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Abstract
The present invention relates to a monolithic multi-layered material having at least a first layer, from which anisotropic pores originate, and a second layer, in which the anisotropic pores continue. The present invention further relates to a monolithic medical material having at least a first layer, from which anisotropic pores originate, and a second layer, in which the anisotropic pores continue. The present invention further relates to a process for the production of a multi-layered material having anisotropic pores. It further relates to a multi-layered material which can be produced by the process according to the invention.
Claims33
A process for the production of a multi-layered material having anisotropic pores, the process comprising the steps of:
- (a) providing a temperature gradient between two temperature-controllable bodies arranged opposite one another;
- (b) arranging in the temperature gradient a first substance which contains at least one sublimable compound and solidifying the first substance to form a first layer;
- (c) arranging in the temperature gradient a second substance which contains at least one sublimable compound adjacent to the first substance and solidifying the second substance to form a second layer adjacent to the first layer;
- (d) subliming the at least one sublimable compounds of the adjacent first and second layers to form a monolithic support matrix of the first and second layers having anisotropic pores generated by the subliming, the pores originating in the first layer and continuing into the second layer so as to extend continuously across the boundary between the first and second layers of the support matrix;
- and
- (e) consolidating the first and second layers.
Dependencies are inferred from the claim text.