Bayer Aktiengesellschaft

Karsten Fahner

Hans-Werner Depcik

Axel Kaminski

Friedrich Johannaber

Hans W Depcik

Rudiger Van Hooren

An identification mark which remains permanently readable is applied by means of a laser beam through a lightwave window of plastics material to a plastics layer situated behind that window.

Composite plastic with laser altered internal material properties

By means of a piston-like movement, solid fillings, for example of mineral fibers or steel wool, introduced in the pressureless zone of a screw are incorporated in the molten plastic and the resulting mixture formed in a mold. The finished molding contains numerous fillings greater than 2 mm in length which inter alia contribute significantly towards improving its strength.

Plastics moulding containing reinforced fillings

An injection molded synthetic resin unit (2) is provided along predetermined paths (4) with another electrically conductive injection molded synthetic resin to produce, for example, a printed circuit board (1).

Growing community of inventors

Winnenden-Birkmannsweiler, Germany

Karsten Fahner