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Euroceras innovative waxes  #3 (97) 2011

In 2011 the wax producing company Euroceras Sp. z o.o.  joined the Interplastika fair the second time in the German pavilion.

Beside the K show in Dьsseldorf the participation on the Interplastika as well as on the Chinaplast are from strategic interest for the fast growing, worldwide acting company Euroceras. EUROCERAS as a wax producer can look back onto a more than 30 years experience in the production of LDPE and HDPE waxes which are sold under the brand name Ceralene®. Since 2007 the company renamed under EUROCERAS belongs to the German group consisting of Keim Additec Surface GmbH and Silcona GmbH & Co. KG.
EUROCERAS benefits from the wax knowledge of the sister company Keim-Additec Surface GmbH which is one of the leading manufacturers of water based wax additives for printing inks, lacquers, paper, polishes and further special applications. In the German R&D centre new developments like oxidised PE, functionalised waxes as well as the new polyester waxes were developed market ready, which broadens the Ceralene® wax portfolio strongly. The company has been established within the last four years as a reliable, innovative and global acting supplier of high quality waxes especially in the field of plastics. Since 2010 EUROCERAS is ISO 9001:2008 certified to meet customers high quality demands.
Main focus on the EUROCERAS booth on the Interplastika 2011 were the three grades Ceralene® 691, 693 and 694 polyester waxes, which were introduced for the first time in autumn 2010 on the K show and which are now available in large scale.
Those polyester waxes can be used as an additive in a broad field of applications for the processing of plastics. Properties of the Ceralene® polyester waxes are in most applications comparable with montan waxes, in some cases like thermal stability, plate out and volatility the CERALENE® polyester waxes are strongly improved.
The polyester waxes are produced on a new production line by a polymerization process. All three polyester grades are non volatile as result of their high molecular weight. The chemical structure is a unique comb polymer with a polar modified backbone and non polar, long aliphatic side chains. The non-polar side chains assure a very good compatibility with the polymer, whereas the polarity of the backbone could be varied by using waxes with lower polarity (CERALENE® 691 with an acid number of around 10 mg (KOH)/g) or with higher polarity (CERALENE® 694 with an acid number of around 19 mg (KOH)/g). This allows the customer to choose the polarity of the CERALENE® grade to adjust the wax additive to his process/application. As a result of their chemical structure the polyester waxes are very stable against oxidative and thermal degradation, means yellowing does not occur not even at high temperatures which are typical during the processing of technical plastics or fiber applications.
All polyester waxes are developed to fulfill relevant regulations concerning the use of the waxes in different indirect food contact applications (for example European Plastics Directive 2002/72/EC and amendments). The waxes are of course in compliance with the European REACH regulation.
The customers sample requests after introduction of the CERALENE® polyester waxes on the K show 2010 were numerous. Especially as a reason of the lack of reliable montan wax supplies and the strong price increase for montan waxes during the last month, a lot of customers are forced to find alternatives. In the past for some applications like PVC soft film calandering there was no alternative for the use of montan waxes. With the CERALENE® polyester waxes we now can provide for a broad range of plastics applications a synthetic alternative. Summarising the customers feedback main applications for the polyester waxes are:
 –PVC window profile extrusion where CERALENE® 691, 693 and 694 provides a very smooth and homogeneous surface quality. The wax will not build up on the extrusion tool and damage the surface of the profile.
 –Injection moulding of PVC as well as for several technical plastics: CERALENE® polyester waxes improve the flow in complex moulds and reduce the adhesion on the wall, so that the demoulding forces can be reduced.
–Soft PVC calandering where CERALENE® polyester waxes can act as release additive to avoid sticking on the metal surface.
Another important application is the use in colour masterbatches, for example in polypropylene. Because of the polar structure of the backbone, the CERALENE® polyester waxes have very good pigment wetting properties for organic and inorganic pigments. Pigment producer can coat the surface of pigment during the milling process with the CERALENE® polyester wax. Due to the wax modified surface, the quality of the pigments can be improved. After this process step the incorporation of the coated pigment as well as the dispersibility of the pigment in the resin is much better. Result of the improved pigment dispersionis is a higher colour yield and more homogeneous surface quality.
The CERALENE® polyester waxes can be used also as a booster in combination with a standard polyethylene wax like CERALENE® 2T in the colour masterbatch manufacturing. Often a small amount between 0. 5 – 2.0 % can increases the quality significant. Advantage of polyester waxes in polyolefine masterbatches is, that they do not migrate or plate out on the surface. Also in the injection moulding of PP parts haze and colour inhomogenity on large, plane surfaces cannot be observed.
Based on the knowledge of EUROCERAS the polyester waxes are especially suitable for high temperature applications like fibre spinning, where lowest volatility and thermal stability is crucial.
In technical plastics like PA, ABS, PC, PS, POM or PET CERALENE® 691, 693 and 694 provides excellent lubricating, rheological and release properties. Additional benefit for example in PA6 is the increase of surface gloss at very low dosage levels between 0.1 – 0.3 %.

Business card
In 1973 production of waxes within the Chemical Industry Blachownia was started. In 1994 the wax-production part went to the company Polichem. In 2002 by privatization the enterprise went independent under the name Chemplast. Since 2007 Chemplast belongs to Keim-Additec Surface GmbH and is operated independently under the new name EuroCeras.
The production capacity will be doubled in 2007 and tripled until beginning 2008.
The biggest customers of these products are especially the printing ink, lacquers, plastic, wall-paper and care industry in western and eastern Europe as well as in Asia and Africa.

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