Dsm IP Assets B.v.

Amoena Medizin-orthopadie-technik Gmbh

Technische Hochschule Rosenheim

Dirk Muscat

Rudolfus Antonius Theodorus Maria Van Benthem

Jacobus Adriaan Antonius Vermeulen

Willem Grisnich

Stefan Moser

Vitus Zenz

Nicole STRÜBBE

Michaela Reusch

The invention relates to a method to produce a modified hyperbranched polyesteramide, containing at least two &#x3b2;-hydroxylamide ester groups and optionally also a hydroxyalkylamide endgroup, wherein (a) a hydroxy-, or aminefunctional monomer, oligomer or polymer is contacted with a first molar excess of a cyclic carboxylic acid anhydride, forming a mixture of an acid functional ester, respectively an acid functional amide and a cyclic carboxylic acid anhydride; (b) the mixture is contacted with an amount of alkanediolamine, wherein the amount is a second molar excess with respect to the first molar excess. The invention further relates to a modified hyperbranched polyesteramide containing at least two &#x3b2;-hydroxylamide ester groups and optionally also a hydroxyalkylamide endgroup with a degree of polymerisation of more than 19, as well as the use of these polyesteramides as rheology modifier in gas-oil or in diesel.

Oil soluble hyperbranched polyesteramides

The invention relates to a process for the preparation of a heat curable paint binder composition containing a compound comprising hydroxyalkylamide groups. At first a compound comprising hydroxyalkyl amide units and carboxylic acid units is obtained by reacting a cyclic anhydride and an alkanolamine in a mixing device and that secondly the binder composition is obtained by mixing the compound and a polymer in a second mixing device.

Process for the preparation of a heat curable paint binder composition

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Munich, Germany

Dirk Muscat