Basf Se Corporation

Reichhold as

Achim Kaffee

Michael Henningsen

Bernd Bruchmann

Klaus Ebel

Peter Rudolf

Alexander Panchenko

Indre Thiel

Jean-Francois Stumbe

Burkhard Walther

Rainer Klopsch

Christian Mueller

Kirsten Dahmen

Ansgar Gereon Altenhoff

Andreas Lanver

Andreas Kunst

Miran Yu

Thomas Maximilian Wurm

Christoph Mueller

Manfred Döring

Lionel Gehringer

Monika Charrak

Joachim Zwecker

Volker Altstädt

Chunhong Yin

Jens Langhanki

Alexander Schmidt

Lin Zang

Johannes KRÄMER

A process prepares a prepolymer containing a urethane group and a curable silicon-functional group, or a prepolymer of formula (IV), The prepolymer may be cured to a cross-linked polymer by ambient moisture and is therefore suitable for use as a component in a one-component sealant or adhesive composition.

One-component sealant or adhesive composition

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 present invention relates to the use of substantially linear polypropyleneimine as a hardener for epoxy resins, and also to a corresponding curable composition, to the curing thereof, and to the cured epoxy resin obtainable therefrom.

Use of polypropyleneimine as curing agent for epoxide resins

The present invention relates to the use of cyclic carbonates of the formula I or a mixture thereof in epoxy resin compositions and also to epoxy resin compositions which comprise such cyclic carbonates. 

Use of cyclic carbonates in epoxy resin compositions

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Osnabrueck, Germany

Achim Kaffee