Solar Shelter Spray Emulsion

By: TOM BRANNA

Editor

Ingredients

%

Phase A

Water
65.61

Pemulen TR-2 (Noveon)
0.20

Versene NA2 crystals (Dow Chemical)
0.04

Glycerin (J.T. Baker)
3.00

Phenonip (Clariant)
1.00

Dermacryl AQF (National Starch)
4.40

Phase B

Neo Heliopan AV (Symrise)
7.50

Neo Heliopan OS (Symrise)
5.00

Neo Heliopan HMS (Symrise)
10.00

Neo Heliopan 357 (Symrise)
2.00

Lanette O (Cognis)
0.30

Span 80 (Uniqema)
0.45

Phase C

DL-alpha-tocopheryl acetate (DSM)
0.50

TEA
99% q.s. pH 6.25-6.75

Procedure

Phase A— While stirring the water at 500-600 RPM, add Pemulen TR-2 and allow the polymer to fully disperse. Once Pemulen TR-2 is fully dispersed, add the remaining ingredients in Phase A. Continue stirring and heat to 80°C.

Phase B—Add all ingredients to a separate vessel and heat to 80 °C. Once both Phase A and Phase B have reached 80°C, slowly add Phase B to Phase A. Mix Phase AB at 75°C for 10 minutes. Turn off heat and continue to mix at 500-600 rpm until cooled to less than 30°C.

Phase C—Once the temperature of Phase AB is less than 30°C, add the tocopheryl acetate. Once the tocopheryl acetate is fully incorporated, pH adjust the formulation to 6.25 - 6.75 using triethanolamine.