Polysilicone-15
Synonyms
Diethylbenzylidene malonate dimethicone;
Diethylmalonylbenzylidene oxypropene dimethicone;
Dimethicodiethylbenzalmalonate;
Siloxanes and silicones, dimethyl, 3-(4-(2,2-di(ethoxycarbonyl)ethenyl)phenoxy)propen-2-yl methyl, 3-(4-(2,2-di(ethoxycarbonyl)ethenyl)phenoxy)propen-1-yl methyl, trimethylsilyl terminated;
Category
Silicone Surfactant
> Non-ionic Silicone Surfactant
>> Alkenyl (Substituted Alkenyl) Silicone Polymer
Chemical Numbering System
CAS: 207574-74-1
EINECS: 426-000-4
Molecular Formula & Molecular Weight
Molecular Formula: N/A
Molecular Weight: N/A
Structure
Schematic formula:
Properties
Appearance (1), colorless to pale yellow liquid.
Solubility insoluble in water.
Stability stable.
Risk Liquid form: irritation, irritation to skin, eye, respiratory system.
GHS label: 
Ecology may be hazardous to environment. Water body should be given special attention.
Biodegradability biodegradable.
Characteristics excellent film-forming, UV absorbing, dispersing, adsorbing abilities. UVB band.
Synthesis
Quality Standards & Test Methods
1, Physical and chemical indexes
|
Item |
Physical and chemical indexes |
|
Liquid |
|
|
Actives, %, ≥ |
95.0 |
Test Methods
(1), Actives
2, Hazardous substances indexes
|
Item |
Hazardous substances indexes |
|
Liquid |
|
|
Heavy metals (as Pb), mg/kg, ≤ |
20 |
|
As, mg/kg, ≤ |
3 |
Test Methods
(1), Heavy metals (as Pb)
Safety and Technical Standards for Cosmetics (2015 Edition)
GB/T 30799 The test method of food detergents -- Determination of heavy metals
(2), As
Safety and Technical Standards for Cosmetics (2015 Edition)
GB/T 30797 The test method of food detergents -- Determination of total arsenic
3, Further explanation
(a), On physical and chemical indexes: firstly, shall be indicated carbon atom distribution; secondly, shall be indicated average molecular weight.
(b), Used in cosmetics, should be test for harmful substances or furtherly test for microorganisms, according to local regulations and standards.
Major Uses
1, Typical applications
Use as film-forming agent.
Use as UV absorbing agent.
2, Personal care products
UV absorbing agent, UV filter, light stabilizer in personal care products.
Further information:
(1), In accordance with Safety and Technical Standards for Cosmetics (2015 Edition) of China, be included in the allowable UV filters.
Maximum concentration is 10%.
(2), In accordance with EU regulations (EC) 2009/1223, directive 2002/34/EC, be included in Annex VI/26.
Maximum concentration is 10%.
Manufacturers
Update: 20140828(1); 20200918(2);