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Keratotic Plug Remover

Published November 14, 2005
Related Searches: skin patent acid polymer
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● Patent No. US 6,607,719 B2: Japanese
researchers for Kao Corp. patented a
method to remove keratotic plugs from
skin using a cosmetic article comprised
of a woven cloth, nonwoven cloth and a
plastic film. On the cloth, there is a
layer consisting of an alkyl vinyl ether
copolymer and maleic acid and maleic
anhydride or a copolymer salt.

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