Peg/Ppg-15/15 Acetate Dimethicone is an inorganic chemical compound, a Dimethicone by-product.

The name describes the structure of the molecule:

• PEG/PPG-15/15 indicates the presence of polyethylene glycol (PEG) and polypropylene glycol (PPG), with an average molecular weight corresponding to 15 ethylene oxide units and 15 propylene oxide units. Both PEG and PPG are polymers used in cosmetics for their solubilizing and hydrating properties.
• Acetate refers to acetate, an ester of acetic acid. Acetate in this context indicates that the PEG/PPG has been esterified with acetic acid.
• Dimethicone is a type of silicone, known for its emollient and protective properties. It is commonly used in skin and hair care products to create a protective barrier and to provide softness and shine.

Description of Raw Materials and Their Functions

Polyethylene Glycol (PEG) and Polypropylene Glycol (PPG). Synthetic polymers used to enhance the water solubility and emollient properties of dimethicone.

Acetate. A functional group used to further modify the properties of the polymer, improving its compatibility with other cosmetic ingredients.

Dimethicone. As above. A silicone polymer used as the base for the formation of the compound. It is known for its softness and slipperiness properties.

Industrial Chemical Synthesis of Peg/Ppg-15/15 Acetate Dimethicone

Chemical Modification. The process begins with the chemical modification of dimethicone with PEG and PPG to form a mixed polymer structure.

Acetylation Reaction. Subsequently, the polymer is acetylated to introduce acetate groups into the molecular structure.

Reaction Control. The modification and acetylation reaction is monitored to ensure it occurs correctly and the final product has the desired properties.

Purification. After the reaction, Peg/Ppg-15/15 Acetate Dimethicone is purified to remove impurities and by-products.

Quality Control and Packaging. The purified Peg/Ppg-15/15 Acetate Dimethicone undergoes quality checks to ensure it meets the required standards. After quality control, it is packaged for use in cosmetic and personal care products, where it utilizes its properties as an emulsifier and conditioning agent.

Form and Color 

Peg/Ppg-15/15 Acetate Dimethicone is typically a viscous, colorless or very light-colored liquid.

What it is used for and where

Cosmetics

Light stabilizer. It prevents light from degrading light-sensitive components and slows down degradation reactions that have already begun. The mechanism is, in a way, similar to antioxidants and the effectiveness depends on the.complexity of the formulation and the density of the product.

Surfactant - Cleansing agent. Cosmetic products used to cleanse the skin utilise the surface-active action that produces a lowering of the surface tension of the stratum corneum, facilitating the removal of dirt and impurities.

Surfactant - Emulsifying agent. Emulsions are thermodynamically unstable and are used to soothe or soften the skin and emulsify, so they need a specific, stabilising ingredient. This ingredient forms a film, lowers the surface tension and makes two immiscible liquids miscible. A very important factor affecting the stability of the emulsion is the amount of the emulsifying agent. Emulsifiers have the property of reducing the oil/water or water/oil interfacial tension, improving the stability of the emulsion and also directly influencing the stability, sensory properties and surface tension of sunscreens by modulating the filmometric performance.

CAS: 68037-64-9

Safety

Dimethicone ((polydimethylsiloxane) is a chemical compound, a high molecular weight polymer derived from silicone, a chemically inert mixture of linear methylated siloxane polymers. The term 'dimeth' denotes two methyl groups bonded to the silicone molecule that provide the formation of dimethicone. It possesses a pronounced viscoelasticity characteristic and is hydrophobic, thus adding shine and slipperiness when applied to hair or skin. It forms a kind of barrier that prevents exogenous substances from entering the stratum corneum and at the same time prevents water loss. It is also UV-resistant, non-greasy and cost-effective. At low concentrations it is considered by the US FDA (Food and Drug Administration) to be a skin protector with a good degree of safety.

It is therefore considered safe when formulated to be non-irritating in cosmetic products as, given its high molecular weight, it is poorly absorbed by the skin or scalp.

And now let us talk about PEGs.

Since the PEG (Polyethylene glycol) family is very numerous and can be found in cosmetic, industrial, pharmaceutical, medical and other products, we need to make an introductory statement on the subject, which is rather complex from a safety point of view because these products not only come into contact with the skin, but, as in the case of medical products, are ingested.

PEGs (polyethylene glycol) polymerise condensed ethylene oxide and water and are referred to as polyethylene glycols, but are actually complex chemical components, polymers bonded together. For example, plastic is polyethylene and has a hard consistency, while polyethylene combined with glycol forms a liquid. PEGylation is produced not only as etherification, but also as transesterification, which is the transformation of an alcohol by an ester.

The number appearing after the abbreviation PEG represents the molecular weight and the higher this number is, the less it penetrates the skin.

PPG

PPG (polypropylene glycol) in small amounts is a safe, biocompatible, biodegradable polymer that produces pyruvic acid, a metabolite that our body uses to produce metabolic energy.