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The second Applied Market Information (AMI) international conference, PVC Formulation 2010, will bring together industry specialists to debate cost-effective changes.

The event is scheduled to take place on 16-18 March 2010 at the Maritim Hotel in Cologne, Germany, and will start with a PVC market study delivered by Jon Nash of AMI.

PVC formulations are changing, with new regulations and chemical safety testing driving development, according to the company.

Additive companies have introduced product offerings to deal with sustainability.

Stabilisation is also said to be a hot topic for PVC users and compounders; companies such as Chemtura have studied both regulatory and commercial viewpoints.

PVC resin suppliers have been conducting their own research; Shin-Etsu PVC, for example, has looked at the effects of changing stabilisers in pipe and profile.

Lead is being phased out and alternatives are being brought in; for instance, Baerlocher has investigated calcium stabilisers in profiles.

There is renewed interest in Europe in tin stabilisers, according to the European Stabilisers Producers Association, and Arkema has developed a mono octyl tin.

Sud-Chemie is marketing hydrotalcite as a co-stabiliser for calcium/zinc systems, while Catena Additives has heavy metal-free stabilisers for transparent injection-moulded and extruded PVC.

After the controversy over the use of phthalates, many companies have moved towards new plasticisers.

Roquette Freres, which specialises in chemicals from crops such as maize and potatoes, has developed a diester isosorbide from vegetables.

Lanxess has created a polymeric plasticiser and Eastman Chemical has developed a high solvating alternative.

Processing PVC can be improved with additives such as lubricating waxes from Clariant Produkte Deutschland.

At the event, Dr Michael Schiller, managing director of Akeniz Kimya Austria, will discuss computer-aided rheology control for window profile extrusion.

An oscillating screw kneader, such as that from Buss, can aid the compounding of highly filled PVC.

Nabaltec has modified mineral hydrates to give multifunctional effects in PVC: stabilisation, fire retardancy and smoke suppression.

Impurities in minerals can cause problems in compounds; Chemson Polymer-Additives is investigating the effects as applied to calcium carbonate.

Many PVC compounds are coloured and the titanium-dioxide content can affect a formulation, according to Dupont de Nemours.

External exposure, as in profiles and pipe, can cause heat build-up, particularly in darker colours.

The Shepherd Color Company offers reflective pigments that can help to reduce the problem.

Colour-control systems have been developed by ROC Optical Control to improve consistency.

PVC Formulation 2010 is a specialised conference offering a focal point to debate the latest developments in PVC compounding and markets.

Applied Market Information

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