Durable Protection Sunscreen Lotion

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By: TOM BRANNA

Editor

Durable Protection Sunscreen Lotion
Ingredients
%

Phase A

  • Mineral oil
  • 2.0

0

  • Polawax (Croda) (Emulsifying wax NF)
  • 5.0
  • Lipocol S-2 (Lipo) (Steareth-2)
  • 0.5
  • Lipocol S-21 (Lipo) (Steareth-21)
  • 1.0
  • Crodacol C-70 (Croda) (Cetyl alcohol)
  • 1.0
  • Uvinul MC 80 (BASF) (Octinoxate)
  • 7.5
  • Uvinul M 40 (BASF) (Oxybenzone )
  • 6.0
  • Neo Heliopan OS (Octisalate) Symrise
  • 5.0
  • Keltrol CG-T (CP Kelco) (Xanthan gum)
  • 0.3
  • Hybridur 875 (Air Products) (40% solids)(Polyurethane-2 and polymethyl methacrylate)
  • 2.5
  • Germaben II (ISP) (Propylene glycol, diazolidinyl urea, methylparaben, propylparaben)
  • 1.0

Phase B

  • Deionized water
  • 68.2

Procedure

Combine all phase A ingredients into a vessel while stirring mixture.  In another vessel add deionized water then slowly add xanthan gum while stirring. Continue to stir until clear homogenous mixture forms. Add other remaining phase B ingredients one by one to gum mixture while continuing to stir.  Begin heating both vessels until the temperature of both vessels is between 80-85°C. Once a 80-85°C temperature has been achieved add phase A to phase B slowly while continuing to stir the mixture. Remove from heat and homogenize the resulting emulsion for three minutes. Let the emulsion mix until it comes to a desired temperature.  Adjust the pH with triethanolamine (TEA 99%) and package.

Properties

Appearance—White emulsion; pH—6.3; Viscosity (cPs) (Spindle C @ 10 rpm)—12,900–14,000.

More Information

Air Products, Website: www.airproducts.com/personalcare