Method of preparing a composition based on hyaluronic acid
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United States of America Patent
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Nov 21, 2017
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app pub date -
Jun 14, 2013
filing date -
Jun 15, 2012
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Abstract
The invention relates to a method of preparing a composition, the composition comprising a crosslinked first polymer, optionally a second polymer, which may be crosslinked or non-crosslinked, and water, wherein the first and the second polymer are selected from a polysaccharide, comprising at least steps (i) to (iv):
- (i) crosslinking a mixture comprising the first polymer and water;(ii) subsequent to the crosslinking in step (i), terminating the crosslinking;(iii) optionally blending the product obtained in step (ii) with the second polymer;(iv) subjecting the product obtained in step (iii) to dialysis.
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