TEGO SUN T 805. Hydrophobically Modified Microfine Titanium Dioxide. Technical Information. Intended use

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1 Absrobance Technical Information TEGO SUN T 805 Hydrophobically Modified Microfine Titanium Dioxide Intended use UV filter Benefits at a glance Has a high UVB absorption and a one-star rating for UVA protection Provides a synergistic SPF improvement in combination with organic UV filters No alumina coating no complex formation with Butyl Methoxydibenzoylmethane (BMDM) Facilitates excellent water resistance INCI (PCPC name) Titanium Dioxide; Trimethoxycaprylylsilane C hemical and physical properties ( not part of specifications) Form powder TiO2 content [%] > 95 ph value (4% in water) hydrophobic coating also boosts the waterresistance of the micropigment and provides a high level of photostability. The appearance of sun screen products containing up to 10% TEGO Sun T 805 shows no whitening and is transparent on skin after rub-in. TEGO Sun T 805 can be easily dispersed into any common cosmetic oil by using high shear dispersing tools. The coating has a strong adhesion to the pigment and therefore cannot be washed away or evaporate. It covers the TiO2 particles and makes them compatible with Zinc Oxides. It can be used in formulations that contain the UVA filter Butyl Methoxydibenzoylmethane without recrystallization of the organic filter and thereby influencing its efficacy. TEGO Sun T 805 provides a superior UVB absorption with a maximum at 320 nm and additionally UVA absorption between 340 and 380 nm (Fig. 1). 1,2 1 0,8 Primary particle size [nm] 20 0,6 0,4 Pr operties 0,2 TEGO Sun T 805 is a unique microfine hydrophobic coated Titanium Dioxide with a high level of UV-B absorption. Due to its strongly hydrophobic coating, TEGO Sun T 805 offers additional benefits to the formulator. Thus, it is easily compatible with Carbomer containing O/W formulations. The Wavelength (nm) Fig. 1: UV/VIS absorption spectrum of TEGO Sun T 805 Ev onik Industries AG T EGO SUN T 805 April 2012 Page 1/6

2 Combinations of TEGO Sun T 805 with organic UV absorbers and Zinc Oxide have shown powerful synergistic effects (e.g. Ethylhexyl Methoxycinnamate, Ethylhexyl Triazone, Phenylbenzimidazole Sulfonic Acid, Bis- Ethylhexyloxyphenol Methoxyphenyl Triazine, Diethylhexyl Butamido Triazone, Octocrylene). By utilizing TEGO Sun T 805, lower amounts of organic filters can be used to achieve the same SPF. Consumers' exposure to organic sun screen filters can be minimized. Hence, TEGO Sun T 805 offers an excellent way to provide good broad spectrum protection together with an aesthetically superior appearance. TEGO Sun T 805 is characterized by its high purity and an extremely low content of heavy metals. A pplication O/W and W/O sunscreens Sun protection for kids Face care products Pr ocessing hints W/O and O/W formulations are produced according to the common practice. To achieve the best SPF response and highest transparency, it is recommended to disperse TEGO Sun T 805 directly into the oil phase of the emulsion applying high shear rates. Due to the extremely hydrophobic character, TEGO Sun T 805 has no tendency to penetrate into the water phase. O/W Emulsions stirring - a a W/O emulsion can be formed in the heat. This can be recognized by a high viscosity and a transparent/gel-like appearance. This emulsion can invert phases during the cooling process to obtain a finely dispersed O/W emulsion. While following this routine it can be helpful to.reduce the speed of the homogenizer or/and to reduce the temperature during the homogenization process. Recommended usage concentration 1-25% TEGO Sun T 805 Packaging 315 kg pallet (21 x 15 kg) A pproval In Europe the Cosmetics Directive 76/768/EEC, Annex VI and in the United States the OTC Sunscreen Monograph allows the use of up to 25% Titanium Dioxide in sunscreen formulations. It is not manufactured under GMP conditions. A GMP consistent quality is available under the name of TEGO Sun T 805 G. Hazardous goods classification Information concerning classification and labeling according to regulations for transport and for dangerous substances protective measures for storage and handling measures in accidents and fires toxicity and ecological effects is given in our material safety data sheets. TEGO Sun T 805 has to be dispersed into the oil phase. Care should be taken, that the emulsion will not be excessively homogenized during the processing when common O/W emulsifiers are used, esp. if they are not - as an example - ionic or ethoxylated. The particle size of the dispersed oil droplets of these emulsions should be approx. 1-5.m. A stronger homogenisation may lead to conversion into a water-in-oil emulsion with coarse particle size. When processing with ethoxylated emulsifiers according to the following routine - the hot water phase is added slowly to the hot oil phase while Evonik Industries AG T EGO SUN T 805 April /6

3 Guideline formulations O /W High Endurance Sports Sun Lotion Ma 38/05 1/3 UVA in vitro SPF* 15 AXOL C 62 Pellets 3.00% (Glyceryl Stearate Citrate) TEGO Alkanol 1618 (Cetearyl Alcohol) 1.00% ABIL WAX 9840 (Cetyl Dimethicone) 0.20% TEGOSOFT TN 4.80% (C12-15 Alkyl Benzoate) TEGOSOFT TIS (Triisostearin) 1.00% TEGOSOFT DEC 6.00% (Diethylhexyl Carbonate) TEGO Sun T % Tocopheryl Acetate 0.50% Ethylhexyl Methoxycinnamate 5.00% Butyl Methoxydibenzoylmethane 2.50% TEGO Carbomer 141 (Carbomer) 0.20% Xanthan Gum 0.40% GluCare S 0.10% (Sodium Carboxymethyl Beta-Glucan) Glycerin 2.00% Water 69.70% Sodium Hydroxide (10% in water) 0.60% Preservative, perfume q.s. Pr eparation: 1. Heat phase A and B separately to approx. 80 C. 2. Disperse the pigment in phase A. 3. Add phase A to phase B with stirring1). 4. Homogenize. 5. Cool with gentle stirring below 40 C and add phase C. O /W Sun Care Spray for Kids SG 12/07-8 1/3 UVA in vitro SPF* 50+ TEGO Alkanol CS 20 P 1.00% (Ceteareth-20) TEGOSOFT TN 6.00% (C12-15 Alkyl Benzoate) TEGOSOFT TIS (Triisostearin) 1.50% REWOPAL PIB 1000 (Polyisobutene) 1.00% TEGO Sun T % Bis-Ethylhexyloxyphenol Methoxyphenyl Triazine 5.00% Butyl Methoxydibenzoylmethane 5.00% Diethylhexyl Butamido Triazone 2.00% Ethylhexyl Methoxycinnamate 1.00% Ethylhexyl Salicylate 5.00% Homosalate 6.00% Octocrylene 5.00% TEGO Carbomer 341 ER 0.50% (Acrylates / C10-30 Alkyl Acrylate Crosspolymer) Tocopheryl Acetate 0.50% Phenylbenzimidazole Sulfonic Acid 10.00% (20%) EDTA 0.10% Glycerin 5.00% Water 38.90% Preservative q. s. Phase D Alcohol 5.00% Phase E Sodium Hydroxide (10% in water) q. s. 1) Important: If phase A has to be charged first into the vessel, phase B must be added without s tirring. * Optometrics SPF 290S; PMMA slide; 1 mg/cm² Evonik Industries AG T EGO SUN T 805 April /6

4 Pr eparation: 1. Heat phase A and B separately to approx. 80 C. 2. Disperse the pigment in phase A. 3. Add phase A to phase B with stirring 1). 4. Homogenize. 5. Cool with gentle stirring to approx. 40 C and add phase C an D while stirring. 6. adjust the ph with phase E 7. Homogenize until viscosity is approx mpas. 1) Important: If phase A has to be charged first into the vessel, phase B must be added without stirring. * Optometrics SPF 290S; PMMA slide; 1 mg/cm² W/O Sun Face Fluid (Shake Shake) SG 21/10-2 in vitro SPF* 20 ABIL EM 90 (Cetyl PEG/PPG-10/1 1.00% Dimethicone) TEGOSOFT XC (Phenoxyethyl 11.00% Caprylate) TEGOSOFT DEC (Diethylhexyl 2.50% Carbonate) TEGO Sun T 805 (Titanium Dioxide; 2.00% Trimethoxycaprylylsilane ) Cyclomethicone 12.00% Octocrylene 6.00% Ethylhexyl Salicylate 2.00% Butyl Methoxydibenzoylmethane 0.80% Bis-Ethylhexyloxyphenol 1.50% Methoxyphenyl Triazine (Tinosorb S) VP/Hexadecane Copolymer (Antarone 0.50% V-216 Water 4.43% Sodium Hydroxide 0.07% Phenylbenzimidazole Sulfonic Acid 0.50% (Eusolex 232) Water 46.40% Glycerin 6.00% Distarch Phosphate (MAIS PO4 PH"B") 1.50% Alcohol 1.00% Phase D Dipropylene Glycol; Methylparaben; 0.80% Ethylparaben; Aqua; Methylisothiazolinone (Microcare MEM) Parfum q. s. Evonik Industries AG T EGO SUN T 805 April /6

5 Pr eparation: 1. Heat phase A to approx. 85 C. 2. Disperse TEGO Sun T 805 in phase A. 3. Prepare phase B (neutralization of Eusolex 232). 4. Add phase C to phase B. 5. Add phase B/C (80 C or room temperature) slowly while stirring to phase A. 6. Homogenize for a short time. 7. Cool with gentle stirring and add phase D below 40 C. 8. Homogenize again below 30 C. * Labsphere 2000S; 1.0 mg/cm2, on PMMA slide Light O /W Sun Care Lotion with High SPF (UVA) C L 22/11-8 in vitro SPF* 42 AXOL C 62 Pellets (Glyceryl Stearate 2.50% Citrate) TEGO Alkanol 1618 (Cetearyl Alcohol) 1.00% TEGOSOFT XC (Phenoxyethyl 8.00% Caprylate) Butyloctyl Salicylate 2.00% Tocopheryl Acetate 0.20% Diisopropyl Adipate 1.00% Dimethicone 1.00% Butyl Methoxydibenzoylmethane 1.50% Diethylamino Hydroxybenzoyl Hexyl 4.00% Benzoate Octocrylene 8.00% Ethylhexyl Salicylate 5.00% Ethylhexyl Triazone 2.00% TEGO Sun T 805 (Titanium Dioxide; 1.00% Trimethoxycaprylylsilane) EDTA 0.02% Glycerin 3.00% Water 58.78% Phase D TEGO Carbomer 341 ER 0.10% (Acrylates/C10-30 Alkyl Acrylate Crosspolymer) TEGOSOFT XC 0.90% Phase E Sodium Hydroxide (10% in water) q.s. Phase Z Preservative, perfume q.s. Evonik Industries AG T EGO SUN T 805 April /6

6 Pr eparation 1. Heat phases A and C separately to approx. 80 C. 2. Add phase B to phase A and disperse the pigment. 3. Add phase AB to phase C with stirring. 1) 4. Homogenize. 5. Cool with gentle stirring and add phase D below 50 C. 6. Cool with gentle stirring and add phases E and Z below 40 C. 1) Important: If phase AB has to be charged into the vessel first, phase C must be added without s tirring. * Labsphere 2000S; 1.0 mg/cm2, on PMMA slide H 04/12 Especially concerning Active Ingredients This product information is not intended to provide legal or regulatory advice about product uses or claims in any jurisdiction and should not be relied upon for such guidance (especially in the United States, Canada, and Mexico). Since global regulatory requirements differ, parties accessing this information are solely responsible for determining whether the products and/or claims comply with applicable local laws and regulations, including but not limited to import and export regulations. Please contact your local Evonik representative for more product information. Evonik assumes no liability for any use of our products that is not in compliance with the requirements of the country of the user. This information and all further technical advice is based on our present knowledge and experience. However, it implies no liability or other legal responsibility on our part, including with regard to existing third party intellectual property r ights, especially patent rights. In par ticular, no warranty, whether express or implied, or guarantee of product properties in the legal sense is intended or implied. We r eserve the right to make any changes according to technological progress or further developments. The customer is not released fr om the obligation to conduct careful inspection and testing of incoming goods. Performance of the pr oduct described herein should be verified by testing, which should be carried out only by qualified experts in the sole responsibility of a customer. Reference to trade names used by other companies is neither a r ecommendation, nor does it imply that similar products could not be used. (Status: April, 2008) Evonik Industries A G Goldschmidtstraße Essen, Germany P.O.BOX Essen PHONE FAX personal-care@evonik.com