| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a production method of a low-odor sugar alcohol-modified silicone which is substantially odorless and in which development of odor over time is restricted, to provide external preparations or cosmetics using the low-odor sugar alcohol-modified silicone, and to provide a method for accurately and easily quantifying a carbonyl compound that is a causative substance of odor of a sugar alcohol-modified silicone. <P>SOLUTION: The present invention provides: the production method of a sugar-alcohol modified silicone including a step of treating a sugar alcohol-modified silicone using an acidic substance; the external preparation and the cosmetic containing the sugar alcohol-modified silicone; and a method for measuring a carbonyl value of a sugar alcohol-modified silicone containing a carbonyl compound by using an absorbance of a reaction solution obtained by reacting the sugar alcohol-modified silicone with 2,4-dinitrophenylhydrazine in a reaction medium containing a lower monovalent alcohol and water. <P>COPYRIGHT: (C)2013,JPO&INPIT |
