Low-stringiness thickener and cosmetic material admixed with said thickener
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United States of America Patent
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Sep 13, 2022
Grant Date -
Feb 8, 2018
app pub date -
Oct 16, 2017
filing date -
Oct 9, 2013
priority date (Note) -
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Abstract
Aqueous compositions can be thickened without increasing stringiness, by using polymers of polyacrylic acid, poly(2-acryamide-2-methylpropanesulfonate), or salts thereof, having a weight average molecular weights of 500,000 to 8,000,000 as thickeners. The polymers contain no more than 10 mass % of polymers having a molecular weight of 10,000,00 or more, and/or contain no more than 10 mass % of polymers having more than three times the weight average molecular weight. Aqueous solutions of these polymers exhibit a low degree of stringiness, and are particularly useful as thickeners for cosmetics.
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