Basf Se Corporation

Reichhold as

Lionel Gehringer

Ulrich Mueller

Rolf Pinkos

Reinhold Schwalm

Ulrich Müller

Frank Prissok

Frank Braun

Klaus Menzel

Michael Henningsen

Maxim Peretolchin

Günter Scherr

Stephan Hüffer

Rainer Klopsch

Axel Wilms

Stephan Weinkötz

Veronika Wloka

Andreas Kunst

Gunnar Kampf

Gregor Daun

Peter Enenkel

Marco Balbo Block

Olivier Fleischel

Mirko Kreitschmann

Joachim Zwecker

Joachim-Thierry Anders

Olivier Abillard

Sebastien Garnier

Gerlinde Tischer

Achim Kaffee

Ulrike Mahn

Elke Guetlich-Hauk

Fin Lammers

Elke Gütlich-Hauk

Chunhong Yin

Marine Boudou

Eva Kretzschmar

Jörn Duwenhorst

Jean-François Stumbe

Sirus Zarbakhsh

Dietmar Häring

Eva Kleinmann

Markus Vorwald

The present invention relates to an epoxy-resin composition as matrix component for sheet molding compounds (SMC) and/or bulk molding compounds (BMC), comprising a resin component comprising at least one epoxy resin and a hardener component comprising at least one imidazole compound and at least one latent hardener. In said epoxy-resin composition, the amount of the imidazole compounds used is in the range from 0.007 to 0.025 mol per mole of epoxy groups of the entire composition, and the total amount of primary amine groups optionally comprised does not exceed a proportion of 0.09 mol per mole of epoxy groups of the entire composition. The invention also relates to a fiber-matrix-semifinished-product composition (SMC composition or BMC composition) with, as matrix component, the epoxy-resin composition mentioned, and with, suspended therein, short reinforcement fibers with an average length of from 0.3 to 5.0 cm. The fiber-matrix-semifinished-product composition can be produced via mixing of the constituents, whereupon the composition thickens. The resultant thickened product (semisolid fiber-matrix semifinished product) features comparatively short maturing time and comparatively long available operating time. The invention also relates to the corresponding semisolid fiber-matrix composite, in particular to the semisolid SMC and to the corresponding cured fiber-matrix semifinished product, in particular the cured SMC. Finally, the invention also relates to a screening process for identifying epoxy-resin-based compositions which are suitable for use as thermoset matrix for producing SMC.

Epoxy-resin composition for fiber-matrix semifinished products

The subject matter of the present invention relates to a blend comprising an epoxy resin, a cyclic carbonate, and a hardener comprising a polyalkoxypolyamine, another amine, and a catalyst, to a process for producing said blend, to the use of the blend of the invention for producing cured epoxy resin, and also to an epoxy resin cured with the blend of the invention, and in particular to fiber-reinforced cured epoxy resins for use in rotor blades for wind turbines.

Blends for composite materials

The invention relates to a process for preparing polyester alcohols by catalytic reaction of at least one at least polyfunctional carboxylic acid with at least one polyfunctional alcohol and/or by catalytic ring-opening polymerization of cyclic esters in the presence of catalysts, wherein a zeolite is used as catalyst.

Process for preparing polyester alcohols

The present invention relates to polyester polyols based on aromatic dicarboxylic acids and their use for producing rigid polyurethane foams.

Polyester polyols based on aromatic dicarboxylic acids

The present invention relates to light wood-base materials comprising from 30 to 92.5% by weight, based on the wood-base material, of wood particles, the wood particles having a mean density of from 0.4 to 0.85 g/cm, from 2.5 to 20% by weight, based on the wood-base material, of polystyrene and/or of styrene copolymer as a filler, the filler having a bulk density of from 10 to 100 kg/m, and from 5 to 50% by weight, based on the wood-base material, of a binder, the mean density of the light wood-base material being less than or equal to 600 kg/m.

Light wood-based materials

The present invention relates to a process for preparing plastics using 1,6-hexanediol having an aldehyde content of less than 500 ppm, a process for preparing 1,6-hexanediol having an aldehyde content of less than 500 ppm and also 1,6-hexanediol having an aldehyde content of less than 500 ppm.

Process for preparing plastics using 1,6-hexanediol having an aldehyde content of less than 500 ppm

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Schaffhouse-pres-Seltz, France

Lionel Gehringer