Formulary

Inorganic Sunscreen Lotion SPF 15

July 1, 2010


Phase A
Water
66.15
Avicel PC 611 (FMC) (Microcrystalline cellulose, cellulose gum)
0.50
Simulgel I-NS (Seppic) (Hyrdroxyethyl acrylate/sodium acryloyldimethyl taurate copolymer/isohexadecane/polysorbate 60)
1.25
Disodium EDTA
0.10
Butylene glycol
2.00

Phase B
Brij S721 (Croda) (Steareth-21)
2.50
Brij S2 (Croda) Steareth-2
0.50
Crodacol (Croda) (C-70 cetyl alcohol)
2.50
Myrj S100 (Croda) (PEG-100 Stearate)
1.50
Sylaclear C75V (Arizona Chem.) (Bis-stearyl ethylenediame/neopentyl glycol/ stearyl hydrogenated dimer dilinoleate copolymer)
2.00
Liponate GC (Lipo Chemical) (Caprylic/capric triglyceride)
5.00

Phase C
GCP65HP1 (Kobo) (Zinc oxide, caprylic/capric triglyceride polyhydroxystearic acid, triethoxycaprylylsilane)
8.00
TNP50M170 (Kobo) (C12-15 alkyl benzoate, titanium dioxide alumina, methicone, polyhydroxystearic acid)
7.00

Phase D
Phenonip (Clariant) (Phenoxyethanol, propylparaben methylparaben, isobutylparaben, ethylparaben, phenoxyethanol)
1.00

Procedure
Disperse Avicel PC 611 and Simulgel i-NS into water. Mix until uniform. Add remaining phase A ingredients. Heat to 85-90°C. Mix until uniform. Combine phase B and heat to 85-90°C. Mix until uniform. Slowly add phase C to phase B keeping temperature at 85-90°C. Add phase B+C to phase A and mix at 4000 rpm for 2 minutes. Cool to 40°C with mixing. Add phase D to phase A+B+C. 11. Mix to room temperature.

Properties
Viscosity—5600cPs, Brookfield, SpindleTB, 5RPM; pH—7.37. Stable after 2 months at RT and 45°C.

More Information
Arizona Chemical Company
Email: tom.fontana@azchem.com
Website: www.arizonachemical.com
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