Basf Aktiengesellschaft

Basf Se Corporation

Peter Enenkel

Erich Beck

Klaus Menzel

Matthias Lokai

Reinhold Schwalm

Wolfgang Reich

Edmund Keil

Rainer K&ouml;niger

Wolfgang Paulus

Wolfgang Schrof

Susanne Neumann

Lionel Gehringer

Bernhard Prantl

Christof Kandzia

Christian Nitschke

Oliver Deis

Herbert Marky

The invention relates to radiation-curable aqueous dispersions having mercapto groups, to processes for preparing them, and to their use.

Radiation-curable aqueous dispersions

The present invention relates to new, radiation-curable coating compositions producing coatings of high flexibility and enhanced tensile strength.

Radiation-curable coating compositions

A process is described for producing molding compounds and coatings on substrates by curing radiation-curable compositions under inert gas by exposure to light wherein said inert gas comprises a gas heavier than air, and lateral escape of the inert gas in the course of radiation curing is prevented by means of appropriate apparatus or other measures.

Light curing of radiation curable materials under protective gas

In a process for improving the adhesive strength of radiation-cured films of acrylate resins which comprise compounds having at least one amine group and at least one unsaturated acrylate group and, in particular, an amino-modified acrylate resin having a molecular weight Mn of at least 300, on substrates, the acrylate resins are admixed with amine-hardenable polyepoxides having an epoxide value of from 1 to 15 mol/kg such as polyglycidyl esters or polyglycidyl ethers. Preferred curable mixtures of amine-modified acrylate resins with polyepoxides have amine numbers of from 1 to 250 mg KOH/g and epoxide values of from 0.1 to 4 mol/kg. The mixtures applied as coating films to metal substrates or plastics substrates, in particular, are radiation-cured with, e.g., UV light and an at least partial amine hardening of the polyepoxide compounds in the mixture is conducted by thermal conditioning at, e.g., from 50 to 120&deg; C.

Improving adhesion of acrylate resins

(Meth)acrylic esters containing urethane groups, their preparation, radiation-curable coating compositions and a process for preparing these coating compositions

Radiation-curable formulations based on ethylenically unsaturated prepolymers and difunctional esters of ethylenically unsaturated carboxylic acids with diols having a linear alkylene chain of 7 to 14 carbon atoms, a process for coating substrates using these radiation-curable formulations, and their use as automotive topcoats.

Radiation-curable formulations

Photoinitiator mixtures containing acylphosphinoxides and benzophenone derivatives

Described are aqueous, radiation-curable coating compositions comprising:

Aqueous, radiation-curable coating compositions

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Hessheim, Germany

Peter Enenkel