Basf Aktiengesellschaft

Basf Se Corporation

Basf Akteingesellschaft

Reichhold As

Michael Henningsen

Lars Wittenbecher

Gregor Daun

Dieter Flick

Eberhard Ammermann

Wolfgang Siegel

Klaus Schelberger

Maria Scherer

Reinhard Stierl

Matthias Maase

Ulrich Schöfl

Georg Degen

Randall Even Gold

Andreas Kramer

Manfred Julius

Armin Stamm

Joaquim Henrique Teles

Ernst Buschmann

Gerd Steiner

Martin Fischer

Georg Heinrich Grosch

Thomas Pfeiffer

Alois Kindler

Klaus Halbritter

Alexander Panchenko

Till Gerlach

Jean-Francois Stumbe

Rainer Klopsch

Kirsten Dahmen

Christian Mueller

Ansgar Gereon Altenhoff

Kai Gumlich

Rainer Munschauer

Martin Schäfer

Matthias Kiefer

Andreas Kunst

J&ouml;rg Botzem

Miran Yu

Manfred Döring

Juergen Schillgalies

Joerg-Peter Geisler

Erhard Jacobi

Manfred Doering

Ulrich Arnold

Lionel Gehringer

Achim Kaffee

Christoph Mueller

Stefan Käshammer

Monika Charrak

Olivier Fleischel

Roland Merten

Rainer Noack

Jochen Schröder

Joachim Zwecker

Michael Sander

Wolfgang Viergutz

Lothar Rüb

Irene Gorman

Andreas Kusche

Chunhong Yin

Volker Altstädt

Martin Schaefer

Michael Hüllmann

Georg Arnold Krei

Norbert Bischof

Wolf Stegmaier

Matthaeus Kopczynski

Marc Hofmann

Bernhard Mohr

Alexander Schmidt

Lin Zang

Ulrich Schoefl

Johannes KRÄMER

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 provides a mixture comprising at least three hardener components a1), a2), and b), the ratio of hardener component a1) to a2) being in the range from 0.1 to 10:1, and hardener component b) being present at 5% to 55% by weight, based on the mixture, a process for preparing this mixture, the use of the mixture of the invention for curing epoxy resins, the use of the mixture of the invention with epoxy resins as adhesives, and an epoxy resin cured with the mixture of the invention.

Mixtures of amines with guanidine derivatives

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 present invention provides a blend comprising one or more epoxy resins and a mixture which comprises 0.3 to 0.9 amine equivalent, per equivalent of epoxide of the epoxy resin used, of a hardener component a) and as hardener component b) a compound of the formula I, a process for preparing this blend, the use of the blend of the invention for producing cured epoxy resin, and an epoxy resin cured with the blend of the invention.

Blends comprising epoxy resins and mixtures of amines with guanidine derivatives

The present invention provides a process for producing moldings, the curing of the mold being carried out using a blend comprising one or more epoxy resins and a mixture, the curing component a) being used within the mixture in the range from 0.3 to 0.9 amine equivalent per equivalent of epoxide of the epoxy resin used, and the hardener component b) being a compound of the formula I.

Process for preparing moldings using mixtures of amines with guanidine derivatives

The preparation of epoxy resin compositions which comprise glycidyl ethers comprising cyclohexyl groups and have a low oligomer content is carried out by distillation of compositions which are obtainable by ring hydrogenation of compounds of the general formula (I) where

Epoxy resin compositions and process for preparing them

Glycidyl 2-propylheptanoate, glycidyl 4-methyl-2-propylhexanoate or a mixture of these (referred to collectively for short as glycidyl ester).

C10 alkanoic acid glycidyl esters and use thereof

The use of 1,3-substituted imidazolium salts of the formula I in which

Catalyst for curing epoxides

1,3-substituted imidazolium salts of the formula I are used as latent catalysts for curing compostions comprising epoxy compounds: in which: R1 and R3 independently of one another are an organic radical having 1 to 20 C atoms; R2, R4, and R5 independently of one another are an H atom or an organic radical having 1 to 20 C atoms, it also being possible for R4 and R5 together to form an aliphatic or aromatic ring; X is the anion of a phosphorus oxyacid, and n is 1, 2 or 3.

The use of 1,3-substituted imidazolium salts of the formula I in whichR1 and R3 independently of one another are an organic radical having 1 to 20 C atoms,R2, R4, and R5 independently of one another are an H atom or an organic radical having 1 to 20 C atoms, it also being possible for R4 and R5 together to form an aliphatic or aromatic ring, andX is a thiocyanate anionas latent catalysts for curing compositions comprising epoxy compounds.

The present invention relates to a process for the preparation of 1,2,4-triazol-1-ylmethyloxiranes of the formula I in which A and B are identical or different and, independently of one another, are C-C-alkyl, phenyl-C-C-alkyl, C-C-cycloalkyl, C-C-cycloalkenyl, tetrahydropyranyl, tetrahydrofuranyl, dioxanyl or phenyl, where the phenyl radical can carry one to three substituents chosen from the group: halogen, nitro, C-C-alkyl, C-C-alkyloxy, phenoxy, amino, C-C-haloalkyl or phenylsulfonyl, which comprises reacting  

Preparation for the production of 1,2,4-triazolylmethyl-oxiranes

Fungicidal mixtures, comprising  in which Z is a pyridyl ring or a five-membered heteroaryl ring which, in addition to carbon atoms, contains one or two nitrogen atoms or one nitrogen atom and one oxygen or sulfur atom, where Z carries one to three identical or different substituents from the group consisting of halogen, methyl and trifluoromethyl, and X is halogen, in a synergistically effective amount, methods for controlling harmful fungi using mixtures of the compounds I and II and the use of the compounds I and II for preparing such mixtures are described.

Dithianon-based fungicidal mixtures

The present invention relates to a process for the preparation of N-substituted 2,6-dialkylmorpholines of the formula I in which Rand R, independently of one another, are hydrogen, alkyl or cycloalkyl, or Rand Rtogether with the carbon atom to which they are bonded are a 5- to 14-membered carbocycle, and Rand R, independently of one another, are alkyl or cycloalkyl, by reacting at least one carbonyl compound of the formula II in which Rand Rhave the meanings given above, with at least one morpholine of the formula III in which Rand Rhave the meanings given above, in the presence of hydrogen and at least one metal-containing catalyst, wherein the active component of the catalyst consists essentially of platinum group metals.

Method of producing N-substituted 2,6-dialkylmorpholines

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Frankenthal, Germany

Michael Henningsen