Method of filtering UV- light
AssigneeCelanese Ventures GmbH
InventorsHolger Bengs, Alfred Braunagel
Life of this patent
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Abstract
The present invention relates to the utilisation of water-insoluble linear poly-α-glucan as UV filter, e.g., in sun protection products or in cosmetic as well as medical preparations. The invention also relates to a sun protection product which contains a biotechnically produced, water-insoluble linear poly-α-glucan as UV filter.
Claims4
A method of filtering UV light from a surface, the method comprising the step of applying to the surface a topical preparation comprising a UV filter composition containing as an active ingredient a water-insoluble linear poly-1,4-α-D-glucan having a degree of branching of less than or equal to 0.5% and being substantially free of by-products and/or having a homogeneous molecular weight distribution.
Dependencies are inferred from the claim text.