Novelties at K'95

First organic metal: polyaniline

useful for conductive coatings and corrosion protection

It was Zipperling and the first company worldwide to produce a processable polyaniline that shows metallic properties. With the help of new dispersion techniques the production of different lacquer systems and dispersions is possible which are used as antistatic or conductive coatings of films, plates and injection moulded parts in the plastics industry. Films can be coated continuously and maintain their conductive properties also after deep drawing. For the coating of injection moulded parts spray coating techniques have been developed. The advantage for molder results from the fact that conductive products like boxes or rolls are available now in different colours independent of lot size. The expensive cleaning time after the use of carbon black filled conductive compounds is not necessary any more.

A revolutionary corrosion prevention principle is "CORREPAIR" (for repairing rusted metal products) and "CORRPASSIV" (as a preventive corrosion primer), both based on PAni.

Colour concentrates for the aliphatic polyketone "Carilon"

The new aliphatic polyketone "Carilon" recently introduced by Shell cannot be coloured by simple means. The exclusive properties of this new polymer - no water uptake, low shrinkage, construction properties similar with polyamides - can only be maintained when using a specially composed masterbatch matrix. Zipperling has had the chance to investigate the new properties of this new polyketone during the development of "Carilon" and succeeded in developing a new colour concentrate system for "Carilon". It was obvious that pigments have a destabilizing influence on the polymer. Therefore it was necessary to develop a new optimal polymer matrix and stabilization which is even necessary for basic colours like white and black.

Flame retardant combi-concentrate for polypropylene:
Christo masterpiece "Reichstag-veil"
with Zipperling flame retardant concentrate

Christo's art piece to veil the Reichstag in Berlin is based on modern plastics technology and was only possible with a combination of different technical masterpieces from the basic polymer up to construction, statics and logistics. One of the new elements was the use of combi-concentrates for polypropylene. There were the fibres and also the thick ropes which have been produced using flame retardant concentrates specifically developed for polypropylene, in which other functions like colouring and stabilization where incorporated. The new aspect of these concentrates has been the low let-down ratio (5 - 6 % for achieving the flame retardant classification B 2). Such flame retardant concentrates are nowadays available for almost any thermoplastic polymers (although the let-down ratio is different for every polymer and product).



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