This oil-in-water sunscreen milk provides broad spectrum sun protection. HallBrite® BHB (Butyloctyl Salicylate) in HallBrite® EZ-FLO TDX contributes a very good dispersion for Titanium Dioxide. This formula was subjected to in vitro analysis which indicates SPF ~53, PFA (PPD) ~20 performance with critical wavelength 379 nm.
| Phase | INCI Name [INN/USAN] (Other Information) | Trade Name | % Wt | Function |
|---|---|---|---|---|
| A | Water (Aqua) | up to 100 | Volatile Carrier | |
| Butylene Glycol | 3.00 | Humectant | ||
| Acrylates/C10-30 Alkyl Acrylate Crosspolymer | 0.20 | Thickener (Aqueous) | ||
| B | Disodium EDTA | 0.05 | Chelating Agent | |
| Potassium Cetyl Phosphate | 0.50 | Emulsifier | ||
| C | Octocrylene [Octocrilene] | 9.00 | UV Filter / Sunscreen Agent | |
| Ethylhexyl Salicylate [Octisalate] | 5.00 | UV Filter / Sunscreen Agent | ||
| Butyloctyl Salicylate, Titanium Dioxide (nano) [Titanium Dioxide] (40%), Triceteareth-4 Phosphate, Dimethicone Crosspolymer, Silica | HALLBRITE® EZ-FLO TDX | 10.20 | UV Filter/Sunscreen Agent / Carrier System | |
| VP/Hexadecene Copolymer | 2.00 | Film Former | ||
| D | Butyl Methoxydibenzoylmethane [Avobenzone] | 3.00 | UV Filter / Sunscreen Agent | |
| E | Triethanolamine | 0.40 | pH Adjuster | |
| Preservative | a.n. | Preservative |
PREPARATIVE PROCEDURE
| 1 | To the main vessel add liquids of phase A, start mixing and disperse the alkylate polymer with strong mixing for 20-30 minutes. |
| 2 | Heat this dispersion with gentle mixing to 55-60 °C, add phase B to it, and mix until dissolved. |
| 3 | To a secondary vessel add phase C, start mixing and heat to 55- 60°C. The add phase D and mix until uniform. |
| 4 | When both phases are homogeneous and at their designated temperatures, add phase CD to phase AB. |
| 5 | Strongly mix, without aeration, phase ABCD for three minutes and then start to cool it. |
| 6 | When this batch is below 50°C add phase E with mixing, replace any water lost and mix until smooth. |
PRODUCT CHARACTERISTICS (25°C)
| Appearance (25°C) | White thin liquid |
| Viscosity (Brk, RV4, Sp 4, 20 rpm, after 24 h at room temperature; mPa·s) | 900 - 1400 |
| pH (as is) | 6.5 - 7.5 |
*Patented and Patent Pending
The information presented herein is believed to be accurate and reliable, but no warranty or guarantee, expressed or implied, is made regarding the information or the performance of any product. Further, nothing contained herein shall be taken as any inducement or recommendation to use, manufacture or sell that may infringe any patents or any other proprietary rights now or hereafter in existence, nor to imply compliance with any regulatory requirements
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