Basf Se Corporation

Basf Aktiengesellschaft

Giovanni D'Andola

Klemens Massonne

Laszlo Szarvas

Veit Stegmann

Martin Ernst

Christof Wilhelm Wigbers

Matthias Frauenkron

Stephan Freyer

Axel Wilms

Dagmar Pascale Kunsmann-Keitel

Gabriele Iffland

Frank Hermanutz

Michael Siemer

Erhard Guenther

Volker Rauschenberger

Stefan Schwiegk

Ellen Dahlhoff

Dirk Gerhard

Peter Raatz

Falk Simon

Julia Brodersen

Frank Gaehr

Edouard Loisel

Julien Courtois

Tim Balensiefer

Andre Fuchs

Ronald Frans Maria Lange

Dagmar Pascale Kunsmann-keitel

The present invention relates to photocurable compositions, comprising (A1) a N-vinyloxazolidinone of formula (I), wherein R, R, Rand Rare independently of each other a hydrogen atom or an organic group having not more than 10 carbon atoms, (A2) optionally one, or more second reactive diluents, (B) one, or more oligomers, and (C) a photoinitiator (C), wherein the amount of component (A1) is 5 to 70% by weight based on the amount of components (A1), (A2) and (B), wherein the viscosity of said photocurable composition is in the range 10 to 3000 mPa·s, preferably 10 to 1500 mPa·s at 30° C. The compositions, from which cured three-dimensional shaped articles having balanced mechanical properties combining stiffness with high toughness can be made, are particularly suitable for the production of three-dimensional articles by stereolithography and photopolymer jetting.

UV curable composition for use in 3D printing

A process for producing porous structures from polyamide by dissolving the polyamide in an ionic liquid and precipitating or coagulating the dissolved polyamide by contacting the solution with a liquid precipitant medium. Fibers are produced from the dissolved polyamide in a wet-spinning process by precipitation in protic solvents, in particular water, a C1-4-alkanol or mixtures thereof, and subsequent freeze-drying. Foils, films or coatings are produced by blade coating the dissolved polyamide onto a substrate surface, optionally spraying with protic solvent, in particular water, a C1-4-alcohol or mixtures thereof, dipping into a precipitation or coagulation bath, freeze-drying of the resulting foil, of the film or of the coated substrate. Molded parts are prepared by extracting the dissolved polyamide with protic solvents, preferably water, a C1-4-alcohol or mixtures thereof, wherein the dissolved polymer is transformed to a solid or wax-like state by cooling and extracted after subsequent molding.

Method for producing porous structures from synthetic polymers

The present invention relates to a process for preparing 1-adamantyltrimethylammonium hydroxide, by A) reacting 1-adamantyldimethylamine with dimethyl sulfate to give 1-adamantyltrimethylammonium sulfate; and B) subjecting the 1-adamantyltrimethylammonium sulfate obtained in A) to anion exchange with an ion exchanger loaded with OH ions.

Method for producing 1-adamantyl trimethylammonium hydroxide

A process for preparing glucose from a cellulose material, in which a cellulose-comprising starting material is provided and treated with a liquid treatment medium comprising an ionic liquid whose anions are selected from among polyatomic anions and the cellulose-comprising material which has been treated with the ionic liquid is subjected to an enzymatic hydrolysis, is described.

Enzymatic hydrolysis of a cellulose material treated with an ionic liquid

The present invention relates to a liquid composition which comprises at least one polymer and at least one ionic liquid, the cations of which are derived from polycyclic amidine bases, and a process for isolating cellulose from cellulose-containing sources using at least one such ionic liquid.

Ionic liquids for solubilizing polymers

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Heidelberg, Germany

Giovanni D'Andola