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Wacker SiliconeWacker-Belsil Formula for Beauty
Dr. Koini / 14.10.199
Vo lati le Sil icones
fo r
Personal Care
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Wacker SiliconeWacker-Belsil Formula for Beauty
Dr. Koini / 14.10.199
Volati le Sil icone Fluids
Product INCI Designation Common Name
Wacker-Belsil CM 040 Cyclopentasiloxane Pentamer or D5Wacker-Belsil DM 0.65 Hexamethyldisiloxane Dimethicone 0.65 cstWacker-Belsil DM 1 plus Dimethicone
Properties / Benefits
Low Surface Tension - good spreading characteristics
Low Bp/High Vapor Pressure - Rapid evaporation- completely dry between 25 sec. - 100 min. @ 25 C
Low Heat of Vaporization - 30 - 46 cal/g (Ethanol = 210 cal/g)- no cooling or stinging effect
Soluble in Solvent Alcohols, Organic Esters, and some Natural Oils- formulation flexibility
Gas Permeable, Physiologically Inert- non-irritating, non-occlusive on skin
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Wacker SiliconeWacker-Belsil Formula for Beauty
Dr. Koini / 14.10.199
Volatile Silicones in Personal Care
Glob al Sales Data
0
10000
20000
30000
40000
50000
60000
1996 1997 1998 1999 (est.)
MetricTons
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Wacker SiliconeWacker-Belsil Formula for Beauty
Dr. Koini / 14.10.199
Evaporation rates according to DIN 53249
0
20
40
60
80
100
0 20 40 60 80 100 120
Time (min)
Evaporatio
n(%)
CM 040 (= D5)
D4/D5 (=80/20 wt-%)
D4
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Wacker SiliconeWacker-Belsil Formula for Beauty
Dr. Koini / 14.10.199
Evaporation rates according to DIN 53249
0
20
40
60
80
100
0 20 40 60 80 100 120
Time (min)
Evaporatio
n(%)
DM 0.65
DM 1
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Wacker SiliconeWacker-Belsil Formula for Beauty
Dr. Koini / 14.10.199
0
20
40
60
80
100
0 20 40 60 80 100 120
Time (min)
Evaporatio
n(%)
Water
Isopropanol
Ethanol
Evaporation rates according to DIN 53249
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Wacker SiliconeWacker-Belsil Formula for Beauty
Dr. Koini / 14.10.199
Evaporation rates according to DIN 53249
0
20
40
60
80
100
0 20 40 60 80 100 120
Time (min)
Evaporatio
n(%)
DM 0.65
CM 040 (= D5)
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Wacker SiliconeWacker-Belsil Formula for Beauty
Dr. Koini / 14.10.199
Evaporation rates according to DIN 53249
0
20
40
60
80
100
0 20 40 60 80 100 120
Time (min)
Evaporation(%)
DM 0.65
CM 040 (= D5)
D4/D5 (=80/20 wt-%)
D4
Water
DM 1 plus
DM 1
K inetics / DM 1 plus:
Time [min] Rate of evaporation [%/min]
0 - 10 10
30 0.5
>60 0.15
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Wacker SiliconeWacker-Belsil Formula for Beauty
Dr. Koini / 14.10.199
Typical properties of volatile silicones:
CM 040
(=D5)
D4/D5 D4 DM 0.65 DM 1 DM 1 plus
Appearance clear,
colourless
clear,
colourless
clear,
colourless
clear,
colourless
clear,
colourless
clear,
colourlessViscosity, approx.
[mm2/s]
4.2 3.0 2.5 0.65 1.0 1.0
Density at 25C [g/cm3] 0.96 0.95 0.96 0.76 0.81 0.83
Melting Point [C] -45 -14 17 -68
Boiling Point [C] 205 180 172 100 152 153
Flash Point,closed cup [C]
77
DIN51758
>70 55 4
DIN 53169
40
DIN53213
32
DIN51795
Surface Tension, at20C [mN/m], approx.
18.0 18.0 17.8 15.9 17.4 17.3
Refractive Index,at 25C, approx.
1.397 1.395 1.394 1.375 1.382 1.385
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Wacker SiliconeWacker-Belsil Formula for Beauty
Dr. Koini / 14.10.199
Volatile Silicones in Hair Care
Use levels
Diluent, carrier for silicone gums 1.0 - 75%Reduction in wet combing forces
No build-up potentialTransient shineDelivery system for cuticle coats, shine spraysReduced drying timesPrevention of clogging of pumps and valvesResin plasticizer
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Wacker SiliconeWacker-Belsil Formula for Beauty
Dr. Koini / 14.10.199
Hair Care:
Volatile Silicones as solvents for polydimethylsiloxane fluids:
Benefits: - improved spreadability- durable conditioning- improved feel- reduction of wet and dry combing forces- enhanced shine
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Wacker SiliconeWacker-Belsil Formula for Beauty
Dr. Koini / 14.10.199
Volatile Silicones in Skin Care
Use Level
Diluent, carrier, delivery system 0.5 - 10%Transient emollientImproves rub-in and spreading characteristicsDetackifier
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Wacker SiliconeWacker-Belsil Formula for Beauty
Dr. Koini / 14.10.199
Skin Care:
Volatile Silicones as solvents for polydimethylsiloxane fluids:
Benefits: - soft, smooth feel emolliency
- anti - whitening- anti - soaping- hydrophobicity- breathable barrier
Volatile Silicones as solvents for surface active silicones:
Benefits: - preparation of W/O-, W/Si-emulsions- light, non-greasy impression- low irritation potential
Volatile Silicones as solvents for silicone resins:
Benefits: - hydrophobicity- film former- smooth feel- long-lasting effect
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Wacker SiliconeWacker-Belsil Formula for Beauty
Dr. Koini / 14.10.199
Use levels
Carrier, delivery system 1.0 - 65%Rapid dry without cooling or stinging effectLubricant for aerosol actuators, roller ballsTransient emollientDetackifier
Volatile Silicones in Antiperspirants / Deodorants
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Wacker SiliconeWacker-Belsil Formula for Beauty
Dr. Koini / 14.10.199
An tiperspirants / Deodorants:
Volatile Silicones as solvents for polydimethylsiloxane fluids:
Benefits: - anti whitening- lubricant (also for volves, pumps)- nice skin feel
Volatile Silicones as solvents for surface-active silicones:
Benefits: - light, non-greasy impression- low irritation potential
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Wacker SiliconeWacker-Belsil Formula for Beauty
Dr. Koini / 14.10.199
Use Levels
Improves pigment distribution 1.0 - 10%Improves rub-in characteristicsTransient emollientControlled evaporation sets pigments in placeCarrier for film-forming resinsImproves flow (nail polishes)
Volatile Silicones in Color Cosmetics
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Wacker SiliconeWacker-Belsil Formula for Beauty
Dr. Koini / 14.10.199
Color Cosmet ics :
Volatile Silicones as solvents for silicone resins:
Benefits: - long lasting effect- sweat proof- reduction of pigment transfer- reduction of pigment agglomeration
Volatile Silicones as solvents for polydimethylsiloxane fluids:
Benefits: - improved spreadability- soft, smooth film- hydrophobicity
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Wacker SiliconeWacker-Belsil Formula for Beauty
Dr. Koini / 14.10.199
Environmental Considerations
- volatile silicones
- not found in soil or water (high vapor pressure, extremely low water solubility)
- in the atmosphere: oxidative chemical degradation
=> ultimately converted to SiO2, H2O, CO2
- VOC exempt (are not VOC ozone precursors)