Clariant International Ltd

Universiteit Utrecht Holding B.v.

Anton Kaiser

Matthias Krull

Michael Feustel

Hans Joachim Metz

Dirk Leinweber

Christoph Kayser

Franz Xaver Scherl

Michael Schaefer

Michael Schäfer

Pieter Cornelis Antonius Bruijnincx

Bert Marc Weckhuysen

Rashod Smith

Fiona Kirby

This invention relates a wax inhibitor for hydrocarbon oils comprising an esterified copolymer having repeating structural units derived from an esterified ethylenically unsaturated dicarboxylic acid and &#x3b1;-olefins having at least 18 carbon atoms, whereof at least 3 mol-% of the &#x3b1;-olefins have 30 or more carbon atoms, and wherein the ethylenically unsaturated dicarboxylic acid has been esterified with a mixture of alcohols comprising

Polymeric pour point depressants for waxy crude oils

The invention relates to a method for preparing polyglycerol, comprising &#x2014;providing a catalyst salt on a support, the catalyst salt having catalytic activity with respect to an etherification reaction of a polyol selected from the group of glycerol and oligoglycerols, &#x2014;contacting the catalyst salt on the support with a fluid phase comprising a polyol selected from the group of glycerol and oligoglycerols, &#x2014;and subjecting the polyol in the fluid phase to an etherification reaction in the presence of the catalyst salt, thereby forming the polyglycerol.

Preparation of polyglycerols

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Muehldorf am Inn, Germany

Anton Kaiser