| 摘要 |
A method for producing a hollow profile comprising a cross-linked, gelatinous material, the hollow profile having a polygonal cross-section and comprising a wall, which surrounds a lumen, is provided, the method comprising: a) preparing an aqueous solution of a gelatinous material; b) partially cross-linking the gelatinous material in the solution; c) applying the solution to the surface of a shaped element which defines the lumen; and d) leaving the solution to dry at least partially on the shaped element, thus forming a hollow profile comprising the cross-linked, gelatinous material.
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