|As one of the world's leading specialty chemical companies, Clariant contributes to value
creation with innovative and sustainable solutions for customers from many industries. Our
portfolio is designed to meet very specific needs with as much precision as possible. At the
same time, our research and development is focused on addressing the key trends of our
time. These include energy efficiency, renewable raw materials, emission-free mobility, and
conserving finite resources.
Clariant's Special Solvent business offers a broad range of polyalkylene glycols diethers as
solvents and additives for various applications in the chemical industry. In order to impart the
advantageous properties of polyglycol ethers to silicones and polymers, reactive polyglycol
alkyl ethers containing a double bond are offered as well.
Polyalkyleneglycol Dialkyl Ethers as Solvents and Additives
Clariant's Special Solvent business offers a broad range of polyethylene and polypropylene
glycols diethers. They do not contain any free hydroxyl functionalities which results in being
chemically inert and thermally stable in comparison to polar but protic solvents. Clariant's
polyglycol dialkyl ethers dissolve a wide range of organic compounds as well as stabilize
metal ions in solution, lending themselves to being versatile solvents in chemical processes.
Reactive Polyalkylene Glycol Diethers
With their allyl double bond, the reactive glycol diethers ("Polyglycol AM and AB" types)
contain a reactive functional group. For a variety of different applications, the polyglycol allyl
methyl ethers are reacted with silicon compounds to obtain polyether modified siloxanes. In
this Platinum-catalyzed hydrosilylation reaction the allylic C=C bond of the functional
polyglycol is reacted with the Si-H bond of the silicon compound.
Dipropylene glycol dimethyl ether (DPGDME) is a very versatile and environmentally friendly
solvent. It is not listed as a hazardous air pollutant (HAP), has low toxicity and offers an
alternative to solvents being phased out as result of the Clean Air Act. DPGDME is an aprotic
solvent with excellent chemical stability and outstanding solvency for organic materials.