Sun Care

O/W Lightweight Sunscreen Lotion SPF 30+

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By: TOM BRANNA

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O/W Lightweight Sunscreen Lotion SPF 30+
Ingredients
%

Phase A

  • Deionized Water
  • 50.65
  • Propylene Glycol (Wako Pure Chemical Industries)
  • 2.00
  • Phenonip (Clariant) (Phenoxyethanol (and) methylparaben (and) ethylparaben (and) butylparaben (and) propylparaben (and) isobutylparaben)
  • 1.00
  • Dissolvine (AkzoNobel) (NA2-S disodium EDTA)
  • 0.10
  • Carbopol 940 (Lubrizol Advanced Materials) (Carbomer)
  • 0.30
  • Demacryl AQF (45% active) polymer (AkzoNobel) (Acrylates copolymer)
  • 4.40

Phase B

  • Neo Heliopan 303 (Symrise) (Octocrylene)
  • 2.00
  • Neo Heliopan HMS (Symrise) (Homosalate)
  • 12.00
  • Neo Heliopan 357 (Symrise) (Avobenzone)
  • 3.00
  • Neo Heliopan BB (Symrise) (Benzophenone-3)
  • 4.00
  • Neo Heliopan OS (Symrise) (Ethylhexyl salicylate)
  • 5.00
  • Finsolv TN (Innospec) (C12-15 Alkyl Benzoate
  • 5.00
  • Arlacel 165 (Croda, Inc) (Glyceryl stearate (and) PEG-100 stearate)
  • 3.10

Phase C

  • Deionized water
  • 2.00
  • Triethanolamine-99% (Ashland Chemical)
  • 0.45

Phase D

  • DRY-FLO TS starch (AkzoNobel) (Tapioca Starch (and) polymethylsilsesquioxane)
  • 5.00

Procedure

Add deionized water with propylene glycol, disodium EDTA and Phenonip to main beaker and begin heating to 75-80°C with low homogenizer mixing (2000-3000 rpm). Once dispersed, sprinkle in Carbopol 940 and homogenize at low to moderate speed (2000-3000 rpm) until hydrated. Then add Dermacryl AQF to main beaker and mix until dispersed. Add phase B ingredients to side beaker and begin heating to 75-80°C with propeller mixing at 300 rpm. Once phases A and B reach desired temperatures, add phase B to phase A with moderate homogenization (4000 rpm) mixing for 10 minutes at 75-80°C. Begin cooling batch to 45°C. Pre-mix phase C and add to main beaker once temperature gets below 45°C Homogenize (4000 rpm) for 5 minutes until dispersed and uniform. Add phase D to main beaker and homogenize (4000 rpm) until fully dispersed and uniform. Switch batch to sweep blade and mix at 20 rpm while cooling to 25°C.

Properties

Appearance—Off-white cream; pH—6.25-6.75 pH meter; Viscosity—15000-21000 cps Brookfield RVT, Spindle C, Speed 10, 1 minute, 25°C.

More Information

Akzo Nobel Surface Chemistry LLC 800-906-9977 Email: [email protected] Website: www.akzonobel.com/PersonalCare

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