Evonik Degussa Gmbh

Evonik Operations Gmbh

Si-coatings Gmbh

Salzgitter Mannesmann Line Pipe Gmbh

Martin Risthaus

Karl Kuhmann

Maximilian Gruhn

Andreas Pawlik

Klaus Welsch

Hans-Joachim Wönicker

Sven Mang

Willi Henkenjohann

Kathrin Lehmann

Rainer Goering

Andreas Dowe

Klaus Gahlmann

Klaus Hülsmann

Michael Beyer

Olivier Farges

Hans-Juergen Kocks

Joern Winkels

Reinhard Buessing

Jochen Fritz

Hans-Joachim Woenicker

Jun Shi

The invention provides an adhesion promoter composition comprising at least one polymer A selected from at least one epoxy resin-phenol resin precondensate, a mixture of at least one epoxy resin-phenol resin precondensate and epoxy resins, a mixture of epoxy resins and phenol resins, polyamide resins and mixtures thereof, and at least one copolyamide-based hotmelt adhesive. Additionally described is a primer composition comprising at least one polymer B selected from saturated polyester resins, epoxy-phenol resin precondensates, mixtures of epoxy resins and phenol resins, and mixtures thereof, at least one crosslinker resin selected from the group consisting of melamine resins, blocked isocyanate resins and mixtures thereof, at least one catalyst, and at least one copolyamide-based hotmelt adhesive.

Adhesion promoter compositions and primer compositions for metal-plastic hybrid components

The invention provides a process for producing a hybrid component comprising metal and plastic. The process comprises the steps of a) pretreating the metal surface by applying at least one conversion layer, b) applying at least one layer of an adhesion promoter composition and c) bonding the metal to the plastic. The adhesion promoter composition comprises at least one copolyamide-based hotmelt adhesive.

Process for producing a metal-plastic hybrid component

The invention relates to a polymer composition, and to a semifinished plastics product, the surface of which has been formed at least to some extent from the polymer composition. The invention further relates to a production process associated therewith for the semifinished plastics product. A feature of the polymer composition is that it comprises from 50 to 99.7% by weight of a polymer and from 0.3 to 20% by weight of one or more adhesion-promoting additives. The invention further relates to plastics-metal hybrid components and production of these.

Metal-plastic hybrid component

A pipeline laid trenchlessly and/or without a sand bed is produced using a metallic conduit which is encased with an extruded layer of a polyamide molding material. In this way, the durability of the outer shell required for trenchless laying techniques without a sand bed is ensured.

Method of producing an underground pipeline

A description is given of the use of reactive hotmelt adhesives based on copolyamide and further comprising isocyanate and epoxide and also a functionalized polyolefin in hybrid components. These hybrid components find applications in vehicle construction and in aircraft construction, for example.

Hybrid components with reactive hotmelt adhesives

A process for producing a regenerable ceramic particulate filter for diesel vehicles is described, wherein a material comprising silicon-containing particles is pyrolyzed in the presence of a polyamide. The resulting particulate filters have a BET surface area of &#x3e;350 m/l.

Copolyamide powder as a pore former in regenerable ceramic particulate filters

Reactive hotmelt adhesives based on copolyamide can be used in hybrid components. These hybrid components find application in, for example, vehicle construction and aircraft construction.

Hybrid components containing reactive hotmelt adhesives

Growing community of inventors

Olfen, Germany

Martin Risthaus