Abstract:
Die Erfindung betrifft die Verwendung von stabilisierten, thermoplastischen Polyamid-Formmassen als Schutzschicht zur Beschichtung von Lichtwellenleitern (im folgenden kurz LWL genannt), welche ein Cladding auf Basis von Fluorverbindungen oder Fluorpolymeren besitzen. Die erfindungsgemäss eingesetzte Polyamid-Formmasse weist eine gute Haftung zu dem Cladding auf Basis von Fluorpolymeren oder Fluorverbindungen auf. Ausserdem besitzt sie eine hohe Dauertemperaturbeständigkeit von mindestens 6000 Stunden bei 125°C. Die vorliegende Erfindung betrifft weiterhin optische Adern mit wenigstens einem Faserkern, einem ein- oder mehrschichtig aufgebauten Cladding und mindestens einer den LWL umschliessenden Schutzhülle, welche aus stabilisierten, thermoplastischen Polyamid-Formmassen besteht.
Abstract:
The invention relates to filled polyamide molding materials containing long glass fibers having a non-circular cross-sectional area in addition to a selected polymer mixture of two different polyamides. The invention further relates to the use of such molding materials for producing molded articles as well as said molded articles.
Abstract:
The invention relates to polyamide-elastomer mixtures having improved hydrolysis resistance. To this end, the elastomer is in particular present in the form of a microgel. The polyamide-elastomer mixtures according to the invention can be processed into molded parts, which are used in the automotive field, for example, in particular as lines that conduct media.
Abstract:
A multiply polymer pipe has a polyamide-based outer ply, an inner ply made of polyvinylidene fluoride or its copolymers, as well as an adhesive intermediate ply that adhesively interconnects the inner and outer plies.
Abstract:
A method of producing polyamide nanocomposites from partially crystalline polyamides and organically modified layered silicates in a double screw extruder is disclosed, a first part of the polyamides being dosed into the extruder intake and melted and the organically modified layered silicate being admixed with the melt of the polyamides and then a second part of the polyamides being added to the mixture. The method according to the present invention is distinguished in that the resulting melt is subjected to filtration. Injection molded parts and vehicle driving illuminator reflectors made of the polyamide nanocomposite molding compound produced according to the present invention are also disclosed.