Refractive Index：1.4472 [25ºC]
Vapor Pressure：0.0299mmHg at 25°C
CAS No. 18001-97-3 is a polyethylene glycol-polypropylene glycol copolymer (PEG-PPG) that is a white, waxy solid at room temperature. This synthetic polymer has a molecular weight of about 12,000 Daltons and is soluble in water, alcohols and other organic solvents. It is used as a thickener and suspending agent in a variety of industrial applications, including coatings, inks, adhesives, lubricants and cosmetics.
PEG-PPG copolymer has excellent compatibility with various ingredients and can form protective films on surfaces. It is used in coatings as a leveling agent, to reduce brush/roller marking, to improve coverage, and to reduce surface tension. In inks, PEG-PPG copolymer helps to suspend pigments in the vehicle and to improve flow and leveling. As an adhesive, it improves adhesion and flexibility of the adhesive. In lubricants, it helps to reduce friction, wear and corrosion. In cosmetics, it is used as a thickener and emulsion stabilizer.
PEG-PPG copolymer is also used in other applications, such as in textile processing, rubber compounding, and metalworking fluids. It has excellent thermal stability and can be used in applications exposed to high temperatures. It is also resistant to most acids, bases and organic solvents.
Overall, PEG-PPG copolymer is an effective synthetic polymer with a variety of uses in the industrial and consumer markets. It is a versatile additive that can improve performance in a number of applications. It is safe to use and has excellent thermal, chemical and mechanical stability.