Akzo Nobel N.v.

Plantics B.v.

Plantics Holding B.v.

Wridzer Jan Willem Bakker

Ferry Ludovicus Thys

Matthias Wessling

Albert Henderikus Alberts

Martinus Mathilda Pieter Zieverink

Johannes Theodorus Faustinus Keurentjes

Wilhelmus Louisa Petrus Maria Rutten

Lucas Gerardin

Beer Holthuis

The invention pertains to a layered high-void-fraction material comprising a composite surface layer comprising structural material and a polyester derived from an aliphatic polyol with 2-15 carbon atoms and an aliphatic polycarboxylic acid with 3 to 15 carbon atoms, wherein the surface layer is connected to a high-void-fraction layer of structural material. As compared to a high-void-fraction material without the composite surface layer, the material has, among others, improved surface properties, and improved bending stiffness, while insolation properties for both sound and heat are maintained. The material may be used, e.g., as insulating material, as filtration material, or in hydroponics.

Layered high-void-fraction material

The invention pertains to a process for the preparation of an organic compound by a condensation reaction in which besides the organic compound other products are formed and one or more of the products formed during the preparation are extracted from the reaction mixture with the aid of a membrane. The reaction is carried out at a temperature above 80&deg; C. and one or more of the products formed during the reaction are extracted from the reaction mixture by the aid of an inorganic membrane with an average pore size of the separating layer of less than 0.5 nm.

Preparation of an organic compound by a condensation reaction

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Arnhem, Netherlands

Wridzer Jan Willem Bakker