Evonik Roehm Gmbh

Evonik Rohm Gmbh

Thorben Schuetz

Joachim Knebel

Guido Protzmann

Thomas Kehr

Harald Trauthwein

Gerhard Koelbl

Christine Maria Breiner

Mario Gomez Andreu

Guenther Lauster

Gerold Schmitt

Guenter Westhaeuser

Matthias Beller

Ralf Jackstell

Bardo Schmitt

Klaus Dorn

Klaus Gottmann

Christian Maul

Guenther Graeff

Volker Herzog

Martina Ebert

Ingo Sander

Dieter Bathen

Sabine Koemmelt

Ina Zwierzchowski

Margarita Stein

Anne Grotevendt

Thomas Ohl

Reinhold Martin

The invention describes a composition, especially in the form of a 2-component system comprising (meth)acrylated polyether polyols and/or polyester polyols and/or (meth)acrylated hydroxy-functionalized triglycerides with an adjustable pot life, especially for cable potting compounds.

Reactive resins for cable sealing compounds

Process for preparing bicyclic or tricyclic (meth)acrylates by reacting (meth)acrylic acid with a bicyclic or tricyclic hydrocarbon which contains at least one double bond using montmorillonite as catalyst.

Method for producing bicyclic or tricyclic (meth)acrylates

The present invention relates to the stabilization of (meth)acrylic monomers against premature polymerization during synthesis, storage and transport. The term '(meth)acrylic monomers' is understood to mean derivatives both of methacrylic acid and of acrylic acid.

Stabilized (meth)acrylic monomers

The present invention relates to a process for preparing polyalkylene glycol di(meth)acrylates by reacting polyalkylene glycol with (meth)acrylic anhydride, wherein the reaction mixture contains at most 0.5% by weight of metal compounds and/or amines, the reaction is carried out in the presence of polymerization inhibitors and the reaction temperature is at least 60&#xb0; C.

Method for producing polyalkylene glycoldi(meth)acrylates

The present invention relates to a process for preparing ethylene glycol dimethacrylate, which comprises transesterification of ethylene glycol with an ester of methacrylic acid in the presence of catalysts, wherein a combination comprising lithium amide (LiNH) and lithium chloride (LiCl) is used as catalyst. The process of the invention makes it possible to prepare ethylene glycol dimethacrylate particularly inexpensively and in a very high purity.

Method for producing ethylene glycol dimethacrylate

The present invention relates to a coating composition comprising at least one photo-initiator and at least one (meth)acryl-polymer having units that are derived from (meth)acryl-monomers that have at least one double bond and 8 to 40 carbon atoms in the alkyl residue. The present invention furthermore relates to a monomer mixture comprising at least one (meth)acryl-monomer having at least one double bond and 8 to 40 carbon atoms in the alkyl residue and at least one photo-initiator monomer and a (meth)acryl-polymer that can be obtained by polymerization of said monomer mixture. The present invention furthermore relates to a method for producing a coating. The present invention furthermore relates to a coated object comprising a coating obtained by said method.

Coating composition, (meth)acrylic polymer and monomer mixture for producing the (meth)acrylic polymer

The present invention relates to a (meth)acrylate monomer of the general formula (I) in which Ris hydrogen or a methyl group, X is oxygen or a group of the formula NR' in which R&#x2032; is hydrogen or a radical having 1 to 6 carbon atoms, Ris an alkylene group having 1 to 22 carbon atoms, Y is oxygen, sulphur or a group of the formula NR&#x2033;, in which R&#x2033; represents hydrogen or a radical having 1 to 6 carbon atoms, and Ris an unsaturated radical having 8 carbon atoms and at least two double bonds. The present invention further relates to a process for preparing the monomers set out above, to polymers obtainable from this monomer mixture, and to coating materials which comprise the stated polymers.

(Meth)acrylate monomer, polymer and coating agent

The present invention relates to a process for preparing allyl methacrylate, comprising the reaction of allyl alcohol with an ester of methacrylic acid, wherein the reaction is catalyzed by zirconium acetylacetonate. The process according to the invention enables particularly favorable preparation of allyl methacrylate with a very high purity.

Method for synthesizing allyl methacrylate

The present invention relates to a process for preparing (meth)acrylates, which comprises the transesterification of an alcohol with a low-boiling ester of (meth)acrylic acid in the presence of catalysts, with the alcohol liberated from the low-boiling ester of (meth)acrylic acid being separated off by distillation, characterized in that the molar ratio of low-boiling ester of (meth)acrylic acid to starting alcohol present in the reaction mixture is increased during the reaction by addition of low-boiling ester of (meth)acrylic acid. The process of the invention makes a particularly inexpensive preparation of (meth)acrylates having a very high purity possible.

Method for producing (meth)acrylates

The present invention relates to a process for preparing butanediol dimethacrylates, which comprises the transesterification of butanediol with an ester of methacrylic acid in the presence of catalysts, wherein a combination comprising at least one lithium compound and at least one calcium compound is used as catalyst, at least one of the compounds of lithium and/or of calcium is an oxide, a hydroxide, an alkoxide having from 1 to 4 carbon atoms or a carboxylate having from 1 to 4 carbon atoms and at least part of the reaction is carried out in the presence of an effective amount of water. The process of the invention makes a particularly inexpensive preparation of butanediol dimethacrylates having a very high purity possible.

Method for producing butanediol dimethacrylates

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Seeheim-Jugenheim, Germany

Thorben Schuetz