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Hand Sanitizing Gel

Published July 1, 2009
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Phase A
Deionized water
Carbopol Ultrez 20 Polymer (Lubrizol/Noveon) (Acrylates/C10-30 alkyl acrylate crosspolymer) or Carbopol Ultrez 21 Polymer (Lubrizol/Noveon)
Propylene glycol
SilSense Copolyol-1 Silicone (Lubrizol/Noveon) (PEG-33, PEG-8 dimethicone (and) PEG-14)
Triisopropanolamine (Dow Chemical)

Disperse Carbopol Ultrez Polymer by sprinkling on the surface of deionized water.  After polymer is wetted, mix slowly at low speed. Slowly add the propylene glycol and ethanol with gentle mixing. Allow as much air to escape as possible before proceeding. Add the SilSense Copolyol-1 Silicone with gentle mixing. Add the triisopropanolamine with gentle sweeping motion to minimize air entrapment. Mix until uniform. Add dye or fragrance if desired. The following water-soluble emollients are also recommended for use in this application. Use levels from 0.3-0.5% addition will have little effect on the final clarity.  Use of a non-water-soluble emollient will result in an opaque formulation: Glucam E-20  (Lubrizol Advanced Materials) (Methyl gluceth-20) or Glucam E-10 (Lubrizol Advanced Materials) (Methyl Gluceth-10). For more information, request TDS-255.

(initial values measured immediately): Carbpol Ultrez 21/Carbopol Ultrez 20 Appearance—Clear Gel/Clear Gel; pH—7.3-7.6/7.3-7.6; Viscosity (Brookfield RVT @20 rpm, 25°C #5 spindle)—(mPa·s) 8,000-12,000/4,000-6,000; Clarity (Brinkmann PC 920 Colorimeter, 420 nm) (%T)—90-95/97-100; Stability—Passed 45°C, Passed 3 months/Passed 45°C, 3 months

More Information
Lubrizol Advanced Materials Inc. (Noveon Consumer Specialties), Tel: (216) 447-5000, (800) 379-5389, More info: www.personalcare.noveon.com

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