Siemens Aktiengesellschaft

Frederic Zapf

Christian Weitemeyer

Wolfgang Rogler

Reiner Schneider

Dietmar Wewers

Rainer Kamps

Bernhard Stapp

Siegfried Unterberger

Walter Pfandl

When enveloping an electrical or an optical conductor, the method applies a radiation-reactive resin having photoinitiators with an absorption maximum onto the conductor and then the resin is cured by subjecting it to a radiation of a wavelength preferably in the wavelength range for the absorption maximum of the photoinitiators. The apparatus for enveloping includes an arrangement for applying the resin followed by a radiation source for applying the radiation of the desired wavelength that falls into the range of the absorption maximum of the photoinitiators of the resin.

Method and apparatus for enveloping electrical and/or optical conductors

An improved optical cable having at least one light waveguide having a coating and other component parts in the form of protective sheaths of plastic material as well as potentially tensile elements and filling compounds. The improved cable being recyclable, since the other component parts contain only polyolefins and small amounts of glass or inorganic fillers, so that the cable can easily be recycled into pellets having the inorganic fillers and glass acting as reinforcing elements.

Method for the re-utilization of an optical

The present invention is directed to an optical glass fiber with a primary coating of organo-polysiloxanes containing acrylic acid ester groups which coating is inter alia hydrolysis stable and rapidly curable.

Optical glass fiber with a primary coating of organo-polysiloxanes

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Neustadt, Germany

Frederic Zapf