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Solar Shelter Spray Emulsion



Published September 1, 2005
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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.

Properties
Measured 24 hours after formulation completed:
pH: 6.2 - 6.8
Viscosity: 4000 - 4500 cps
(Brookfield DV-I+, Spindle RV-3, 10 rpm - wait 1 minute).

More Information
National Starch & Chemical, 10 Finderne Ave., Bridgewater, NJ, 08807
Tel: (888) 331-6212; Fax: (908) 707-3664; Website: www.personalcarepolymers.com


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