Personal care compositions with improved solubility of a solid UV active
A technology of personal care and active substances, applied in skin care preparations, medical preparations containing active ingredients, cosmetics, etc.
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
example 1
[0130] Example 1 - The solvency of isosorbide diesters within the scope of the invention was tested relative to two conventional industry standard solvents. Using butylmethoxydibenzoylmethane (i.e. avobenzone, can 1789 commercially available from DSM) as solid UV actives were tested for the solvency of isosorbide dicaprylate, isopropyl lauroyl sarcosinate and C12-15 alkyl benzoate. Various ratios of solute:solvent were prepared by mixing solvent with solid sunscreen (solute) and heating to 70°C. After reaching 70°C, the examples can be mixed for about 10 minutes. The mixture was placed in a covered vial and cooled to storage temperature. Solubility was assessed on samples stored at room temperature for 24 hours after mixing. Solubility was also assessed on samples stored at 5°C for 7 days, followed by equilibration to ambient conditions. The results are shown in Table 1. The data show that the solvency power of isosorbide diester is equivalent to that of the main industr...
example 2
[0134] Example 2 - The solvency of isosorbide diesters within the scope of the invention was tested relative to two conventional industry standard solvents. Use of bis-ethylhexyloxyphenol methoxyphenyl triazine (i.e., betrazinol, can S (commercially available from BASF) were used as solid UV actives to test the solvency of isosorbide dicaprylate, isopropyl lauroyl sarcosinate and C12-15 alkyl benzoate. Various ratios of solute:solvent were prepared by mixing solvent (eg, magnetic stir plate and stir bar) with solid sunscreen (solute) and heating to 70 °C. After reaching 70°C, the examples can be mixed for about 10 minutes. The mixture was placed in a covered vial and cooled to storage temperature. Solubility was assessed on samples stored at room temperature for 24 hours after mixing. Solubility was also assessed on samples stored at 5°C for 7 days, followed by equilibration to ambient conditions. The results are shown in Table 2. The data show that the solvency of isoso...
PUM
Abstract
Description
Claims
Application Information
- R&D Engineer
- R&D Manager
- IP Professional
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com