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Amcol Patents Sunscreen



Published November 14, 2005
Related Searches: international polymer patent sunscreen
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l Patent No. US 6,500,411 B2: Amcol International, Arlington Heights, IL, earned a patent for a multifunctional additive to improve the efficacy of a sunscreen active material containing a particulate material and a natural polymer other than carboxymethyl cellulose or xanthan gum.


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