Evonik Roehm Gmbh

Evonik Degussa Gmbh

Evonik Rohm Gmbh

Andre Hennig

Friedrich Georg Schmidt

Stefan Hilf

Christopher Barner-Kowollik

Simon Krause

Leena Nebhani

Andrew John Inglis

Emmanouil Spyrou

Guenter Schmitt

Michael Wicke

Juergen Hartmann

Bruno Keller

Thomas Arnold

Jiawen Zhou

Nathalie Guimard

Kim Klaus Oehlenschlaeger

Michael Waldhaus

Ozcan Altintas

Oezcan Altintas

ÖZcan Altintas

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

The invention relates to low molecular mass products and to the use thereof as reversible or permanent low-temperature crosslinkers in Diels-Alder reactions.

Low molecular weight products and use thereof as reversible or permanent low-temperature crosslinking agent in Diels-Alder reactions

The present invention relates to an innovative method for controlling the viscosity of, for example, adhesives or coating formulations. The method for controlling viscosity allows very rapid thermoplastic curing of a formulation even at room temperature and a significant reduction in the viscosity at higher temperatures, thereby regaining the capacity for simple processing and allowing, for example, the originally bonded substrates to be separated from one another again with ease. A particular aspect in this context is that a plurality of cycles of thermoplastic curing and a significant reduction in the viscosity are possible with the present system.

Functional materials with controllable viscosity

The present invention relates to an innovative method for the reversible crosslinking of, for example, adhesives or coating materials. The reversible crosslinking method allows very rapid crosslinking even at room temperature and undoing of the crosslinks at higher temperatures, thereby regaining the capacity for thermoplastic processing and allowing the originally bonded substrates to be separated from one another again with ease. A particular aspect in this context is that a plurality of cycles of crosslinking and undoing of the crosslinks are possible with the present system.

Functional materials with reversible crosslinking

Growing community of inventors

Ingelheim, Germany

Andre Hennig