Personal Care. Cremophor A Grades. Technical Information

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1 Technical Information November 2010 Supersedes issue dated March 2008 Cremophor A Grades 04_050402e-03/Page 1 of 8 = Registered trademark of BASF group Nonionic emulsifiers for the manufacture of cosmetic O/W emulsions. Personal

2 04_050402e-03 November 2010 Page 2 of 8 Cremophor A Grades Chemical nature The Cremophor A grades are non-ionic emulsifiers produced by reacting higher saturated fatty alcohols with ethylene oxide. Cremophor A 6 also contains free stearyl alcohol. Grades Cremophor A 6 is a pharmaceutical grade, Cremophor A 25 is a cosmetic grade. Product INCI name CAS No. PRD-No.* Cremophor A 6 Ceteareth-6 (and) Stearyl Alcohol , Cremophor A 25 Ceteareth * BASF`s commercial product numbers. Properties Cremophor A 6 is a whitish waxy substance. Cremophor A 25 is supplied in the form of free-flowing, non-dusting micro-granules. The information in the following table is correct at the time of going to press. It does not necessarily form part of the product specification. Cremophor Unit A 6 A 25 Denstity at 60 C g/cm³ approx approx Viscosity at 60 C mpa s < 20 approx. 70 ph value, 5% aqueous Concentration % Congealing point C approx. 39 approx. 38 Dropping point C approx. 38 approx. 43 Surface tension, 1 g/l at 23 C mn/m approx. 33 approx. 42 HLB value Molecular weight g/mol approx. 520 approx Specification See separate document: Standard Specification available via BASF`s World Account: (registered access). Solubility The Cremophor A grades dissolve in water and alcohol to form either a colloid or a clear solution. They are soluble in vegetable and mineral fats and oils. The warm emulsifiers can be mixed with mineral, vegetable, and synthetic fats and oils, as well as with fatty alcohols, fatty acids, mono- and di-stearates, and with polyethylene glycols. Stability In aqueous solution, the Cremophor A grades are largely resistant to acids, bases and salts. The presence of these electrolytes does not impair the products` efficiency as emulsifying agents. Emulsion preparations must be preserved. Preservation must take further additives and production conditions into account. Shelf life The Cremophor A grades are stable for at least 2 years if stored in the original sealed containers in a dry place at room temperature.

3 04_050402e-03 November 2010 Page 3 of 8 Cremophor A Grades Storage a) The Cremophor A grades should be stored indoors in a dry place. Storerooms must not be overheated. b) Cremophor A 25 should be stored in a dry place at room temperature not exceeding 30 C. It must be protected from sunlight to ensure that it does not form lumps. c) The Cremophor A grades are hygroscopic, and care needs to be taken to exclude moisture. Packaging must be tightly resealed each time they are opened. Safety An investigation of the raw material gave no indication of harmful effects to health if the substance is used for the stated applications and concentrations. Due to large variety of applications and possible combinations with other products, users are responsible for their own safety assessment of their products. Please refer to the latest safety data sheets for detailed information on classification, labelling and product safety. Application The Cremophor A grades are oil-in-water emulsifiers, which are used for the production of ointments, creams, liquid emulsions, gels and other cosmetic formulations. Combinations of Cremophor A 6 and Cremophor A 25 can emulsify oils with a wide range of polarities. Creams and lotions can be formulated easily. If Cremophor A 25 is used together with cetyl or stearyl alcohol or both, homogeneous ointment and cream bases are obtained that can absorb as much as 90% water. Cremophor A 25 is a very efficient protective colloid and can increase the stability of dispersed systems. In concentrations of 21 30%, Cremophor A 25 forms gel-like, brushable hydrates with water. The consistency of these gels can be adjusted from solid to liquid by adding small amounts of Luviskol K 17. Processing notes Conventional methods are suitable for preparing emulsions with Cremophor A grades. The emulsifying agents are melted at C, together with the oils and fats and the oil-soluble additives. The water phase is also heated to C, together with all the water-soluble additives. The oil phase is stirred slowly and thoroughly into the water phase. The time and temperature required for emulsification and homogenization depend on the type of emulsion, the consistency, and the nature of additives.

4 04_050402e-03 November 2010 Page 4 of 8 Cremophor A Grades Typical formulations Sun protection lotion, O/W No. 53/00135 % Ingredients Supplier INCI name A 2.00 Cremophor A 6 (1) Ceteareth-6, Stearyl Alcohol 2.00 Cremophor A 25 (1) Ceteareth Imwitor 960 K (11) Glyceryl Stearate SE 0.20 Abil 350 (44) Dimethicone 2.00 Uvinul M 40 (1) Benzophenone Uvinul MC 80 (1) Ethylhexyl Methoxycinnamate 0.50 Amphisol K (37) Potassium Cetyl Phosphate B 2.00 D-Panthenol 50 P (1) Panthenol, Propylene Glycol 2.00 Uvinul P 25 (1) PEG-25 PABA ,2 Propylene Glycol Preservative (1) Propylene Glycol Water dem. Aqua C 0.30 Carbopol 934 Polymer (6) Carbomer Miglyol 812 (11) Caprylic/Capric Triglyceride D 0.40 Triethanolamine (1) Triethanolamine E 1.00 Vitamin E-Acetate 0.20 DL-alpha-Tocopherol Perfume (1) Tocopheryl Acetate (1) Tocopherol Production: Properties: Heat phases A and B separately to approx. 80 C. Stir phase B into phase A whilst homogenizing and continue homogenizing for a while. Stir in phase C, neutralize with phase D and homogenize again. Cool to about 40 C, add phase E and homogenize again. Viscosity: approx. 2,000 mpa s, Haake Viskotester VT-02 ph value: approx. 7.0 Sun protection cream, O/W No. 53/00046 % Ingredients Supplier INCI name A Tegin (44) Glyceryl Stearate SE 1.00 Cremophor A 6 (1) Ceteareth-6, Stearyl Alcohol 1.00 Cremophor A 25 (1) Ceteareth Cremophor WO 7 (1) PEG-7 Hydrogenated Castor Oil Miglyol 812 (11) Caprylic/Capric Triglyceride Witconol APM (47) PPG-3 Myristyl Ether 3.00 Uvinul M 40 (1) Benzophenone-3 B 5.00 Uvinul P 25 (1) PEG-25 PABA 3.00 Glycerin 86 88% (20) Glycerin Preservative Water dem. Aqua C Perfume Production: Properties: Heat phases A and B separately to approx. 80 C. Stir phase B into phase A and homogenize. Cool to about 40 C, add phase C and homogenize again. Viscosity: approx. 50,000 mpa s Brockfield RVT ph value: approx. 7.5

5 04_050402e-03 November 2010 Page 5 of 8 Cremophor A Grades Body lotion No. 62/00068 % Ingredients Supplier INCI name A 2.00 Cremophor A 6 (1) Ceteareth-6, Stearyl Alcohol 2.00 Cremophor A 25 (1) Ceteareth Phytantriol (37) Phytantriol 8.00 Paraffin Oil Mineral Oil 3.00 Imwitor 960 K (11) Glyceryl Stearate SE 1.00 Lanette O (27) Cetearyl Alcohol 0.50 Abil 350 (44) Dimethicone B 4.00 D-Panthenol 50 P (1) Panthenol, Propylene Glycol ,2 Propylene Glycol Preservative (1) Propylene Glycol Water dem. Aqua C 0.30 Carbopol 934 Polymer (6) Carbomer 7.00 Luvitol EHO (1) Cetearyl Ethylhexanoate D 0.30 Triethanolamine (1) Triethanolamine E 2.00 Vitamin E-Acetate Perfume (1) Tocopheryl Acetate Production: Properties: Heat phases A and B separately to about. 80 C. Stir phase B into phase A whilst homogenizing and continue homogenizing for a while. Stir in phase C, neutralize with phase D and homogenize again. Cool to about 40 C, add phase E and homogenize again. Viscosity: approx. 6,000 mpa s Haake Viskotester ph value: approx. 6.5

6 04_050402e-03 November 2010 Page 6 of 8 Cremophor A Grades Vitamin lotion, Type O/W No. 62/00073 % Ingredients Supplier INCI name A 2.00 Cremophor A 6 (1) Ceteareth-6, Stearyl Alcohol 2.00 Cremophor A 25 (1) Ceteareth Cutina GMS (27) Glyceryl Stearate 3.00 Lanette 16 (27) Cetyl Alcohol Luvitol EHO (1) Cetearyl Ethylhexanoate Paraffin Oil Mineral Oil 0.50 Abil 350 (44) Dimethicone 0.20 Phytantriol (37) Phytantriol B ,2-Propylene Glycol Preservative (1) Propylene Glycol Water dem. Aqua C 3.00 Vitamin E-Acetate 0.10 DL-alpha-Tocopherol Perfume (1) Tocopheryl Acetate (1) Tocopherol Production: Properties: Heat phases A and B separately to about 80 C. Stir phase B into phase A and homogenize. Cool to about 40 C, add phase C and homogenize again. Viscosity: 4,500 mpa s Brookfield RVD VII+ ph value: 6.0 Suppliers 1. BASF SE Ludwigshafen, Germany Tel.: +49(621) 60-0 Fax: +49(621) The Lubrizol Corporation Lakeland Boulevard, Wickliffe, Ohio 44092, USA Tel.: +1(440) Sasol Germany GmbH Witten Arthur-Imhausen-Str. 92, Witten/Ruhr, Germany Tel.: +49(2302) Fax: +49(2302) Merck KGaA Frankfurter Straße 250, Darmstadt, Germany Tel.: +49(6151) Fax: +49(6151) Givaudan S.A. 5 chemin de la Parfumerie, CH-1214 Vernier-Geneve, Switzerland Tel.: +41(22) Fax: +41(22)

7 04_050402e-03 November 2010 Page 7 of 8 Cremophor A Grades 27. Cognis Deutschland GmbH Chemicals Henkelstraße 67, Düsseldorf-Holthausen, Germany Tel.: +49(211) Fax: +49(211) DSM Nutritional Products Ltd Branch PENTAPHARM Engelgasse 109, CH-4002 Basel, Switzerland Tel.: +41(61) Fax: +41(61) Evonik Goldschmidt GmbH Goldschmidtstraße 100, Essen, Germany Tel.: +49(201) Fax: +49(201) Witco Corporation 1 American Way, CT Greenwich, USA Tel.: +1(203) Fax: +1(203) Note This document, or any answers or information provided herein by BASF, does not constitute a legally binding obligation of BASF. While the descriptions, designs, data and information contained herein are presented in good faith and believed to be accurate, it is provided for your guidance only. Because many factors may affect processing or application/use, we recommend that you make tests to determine the suitability of a product for your particular purpose prior to use. It does not relieve our customers from the obligation to perform a full inspection of the products upon delivery or any other obligation. NO WARRANTIES OF ANY KIND, EITHER EXPRESS OR IMPLIED, INCLUDING WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, ARE MADE REGARDING PRODUCTS DESCRIBED OR DESIGNS, DATA OR INFORMATION SET FORTH, OR THAT THE PRODUCTS, DESIGNS, DATA OR INFORMATION MAY BE USED WITHOUT INFRINGING THE INTELLECTUAL PROPERTY RIGHTS OF OTHERS. IN NO CASE SHALL THE DESCRIPTIONS, INFORMATION, DATA OR DESIGNS PROVIDED BE CONSIDERED A PART OF OUR TERMS AND CONDITIONS OF SALE. November 2010

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