As one of the world's leading specialty chemical companies, Clariant contributes to valuecreation with innovative and sustainable solutions for customers from many industries. Ourportfolio is designed to meet very specific needs with as much precision as possible. At thesame time, our research and development is focused on addressing the key trends of ourtime. These include energy efficiency, renewable raw materials, emission-free mobility, andconserving finite resources.
Clariant's Special Solvent business offers a broad range of polyalkylene glycols diethers assolvents and additives for various applications in the chemical industry. In order to impart theadvantageous properties of polyglycol ethers to silicones and polymers, reactive polyglycolalkyl 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 polypropyleneglycols diethers. They do not contain any free hydroxyl functionalities which results in beingchemically inert and thermally stable in comparison to polar but protic solvents. Clariant'spolyglycol dialkyl ethers dissolve a wide range of organic compounds as well as stabilizemetal 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 allylmethyl ethers are reacted with silicon compounds to obtain polyether modified siloxanes. Inthis Platinum-catalyzed hydrosilylation reaction the allylic C=C bond of the functionalpolyglycol is reacted with the Si-H bond of the silicon compound.
Dipropylene glycol dimethyl ether (DPGDME) is a very versatile and environmentally friendlysolvent. It is not listed as a hazardous air pollutant (HAP), has low toxicity and offers analternative to solvents being phased out as result of the Clean Air Act. DPGDME is an aproticsolvent with excellent chemical stability and outstanding solvency for organic materials.