Evonik Roehm Gmbh

Evonik Rohm Gmbh

Degussa Aktiengesellschaft

Evonik Operations Gmbh

Degussa - Huls Ag

Rohm Gmbh

Bruno Keller

Thomas Haas

Monika Berweiler

Sven Balk

Juergen Hartmann

Michael Wicke

Peter Neugebauer

Dirk Poppe

Florian Hermes

Thomas Arnold

Herbert Jung

Tadeusz Von Rymon Lipinski

Frank Beissmann

Dominik Sturm

Ruth Kernke

Christian Golditz

Dietrich Michelchen

Michael Waldhaus

Andreas Freund

Guenter Schmitt

Stephanie Schauhoff

Werner Burkhardt

Monika Maerz

Klaus Dorn

Günter Schmitt

J&ouml;rg Sauer

Wolfgang Janas

Jurgen Hartmann

Andre Hennig

André Hennig

Elke Seipel

Hartmut Alt

Gunter Schmitt

Monika Marz

Jürgen Hartmann

Monika MÄRZ

Frank Beißmann

Cornelia Borgmann

The present invention relates to aqueous binders and to heat-sealing lacquers produced therefrom for heat-sealable coatings which adhere on aluminium without use of any primer, permit good sealability of the coated aluminium foil with respect to PS and/or PVC, and moreover feature good blocking resistance even at temperatures above 40&#xb0; C.

Aqueous binders for heat-sealing applications

The present invention comprises a single-component binder for heat-sealing applications which can be used for the sealing of polyester foils, in particular of polyethylene terephthalate foils (PET foils) with respect to containers made of polystyrene, of PVC, and of polyester. These polyesters can in particular be polyethylene terephthalate (PET) or polylactic acid (PLA). The binders here feature not only good seal seam strengths but also in particular good transparency and excellent application properties. A substantive aspect of the invention is that the sealing can be achieved without addition of adhesion promoters, in particular without addition of adhesion promoters based on polyvinyl chloride (PVC) or on polyester, and that barrier properties and sealing properties achieved in respect of containers made of PS and of PET are nevertheless at least comparable with, and sometimes better than, those achieved with heat-sealing systems already marketed.

Directly attaching, halogen-free, fast-drying, heat-sealing binder for sealing polyester films to polystyrene, polyester or PVC

A transparent, heat-sealable coating for transparent PET packaging foils can be provided by using a heat-sealable lacquer based on styrene-containing copolymers, on poly(meth)acrylates, on at least one polyester and optionally on a tackifier, and also the process for the sealing of a foil coated with this lacquer. It is surprising here that, despite the use of a rubber based on styrene-containing polymers that is not optically compatible with polyesters and polymethacrylate, the transparency of the heat-sealable coatings is still very high.

Directly adhering, transparent heat-sealable binder for the coating and sealing of transparent plastics foils

The present invention relates to aqueous binders and to heat-sealing lacquers produced therefrom for heat-sealable coatings which adhere on aluminum without use of any primer, permit good sealability of the coated aluminum foil with respect to PS and/or PVC, and moreover feature good blocking resistance even at temperatures above 40&#xb0; C.

The present invention relates to a novel process for producing ceramic materials, in particular refractory materials having a reduced relative density. In particular, the invention relates to a process for producing light, refractory materials having non-contiguous pores based on shaped and unshaped materials. These materials can be used as working lining in high-temperature applications. The process is based on the production of spherical, closed and isolated pores in the microstructure of the material. The pores having a pore diameter which can be set in a targeted manner are generated by use of polymer particles, in particular polymethacrylates, in particular polymers or copolymers prepared by means of suspension polymerization, as pore formers which can be burnt out. The polymers or copolymers are present in the form of small spheres having a defined diameter. The introduction of isolated spherical pores allows the production of ceramic materials having a sometimes significantly reduced relative density and improved corrosion resistance and better mechanical strength compared to the prior art. The specific, closed pore system at the same time contributes to reducing the thermal conductivity of the ceramic materials. In addition, the novel process has the advantage that there is no risk of formation of undesirable black cores, even in the production of thick-walled ceramic products.

Method for producing light ceramic materials

A shaped metal fixed-bed catalyst is disclosed which contains at least one catalyst alloy formed of a catalyst metal and an extractable alloying component. The catalyst is activated in an outer layer with a thickness of 0.1 to 2.0 mm starting from the surface by complete or partial extraction of the extractable alloying component. The catalyst may also contain promoters. The catalyst is distinguished from known catalyst in that it is formed exclusively of the catalyst alloy and has a total pore volume of 0.1 to 0.6 ml/g. The catalyst is used for hydrogenation, dehydrogenation and hydrogenolysis reactions.

Shaped metal fixed-bed catalyst, a process for its preparation and its use

Polyoxymethylene moulding compositions with improved heat stability and stability against discoloration

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Wackernheim, Germany

Bruno Keller