replacement of octyl-tin products with optimised COS one-packs. Chemson focused on the sustainability benefits of
organic heat stabilizers (OBS) and the benefits that they can bring to biaxially-oriented PVC pipes. In addition, the same class of additives is finding
success in the Dincel Construction System, which was developed in Australia. It involves a hollow framework made from rigid PVC profiles. These can be easily assembled on site prior to being filled with concrete to create walls or columns that are load-bearing and fire-resistant. In addition, they have been shown to withstand magnitude nine earthquakes. The system speeds up construction and is also energy efficient. According to Chemson, using an optimised OBS-
Reagens focused on new
stabilization systems for the production of foamed sheets and profiles using both free-foam and Celuka process technology. For free-foam applications, lead and organo-tin stabilizers are most the
widely used options, while calcium organic systems (COS) are the usual choice for the
Celuka process, although organo-tin products are also used. Going forward, the company sees several stabilizer
The Dincel Construction
System is built using PVC
profiles that
are then filled with concrete
trends for cellular PVC applications. These include the use of booster technology with organo-tin additives to improve heat stability and reduce costs. For example, impressive results were shown for a formulation featuring 1.3 phr of Reagens Reatinor 804 octyl-tin plus 0.3 phr of the company’s Reapak B/NT 7444 booster. Reagens also predicts the simplification of COS one-packs, offering core stabilizers which allow processors to make adjustments more easily. Other developments include the fine-tuning of COS one-packs to improve initial colour and surface finish, plus the
based PVC formulation helps to create a profile with the required stiffness to survive earthquakes. It also provides the required stiffness and rigidity to maintain the integrity of Dincel’s patented snap-lock design.
More information Copies of the complete proceedings for the PVC Formulation 2012 conference are now on sale at Plastics Information Direct. For more details and to purchase on-line, visit: http://bit.ly/PVCpapers. The next PVC Formulation confer- ence will take place on 12-14 March 2013 in Düsseldorf, Germany. For information about attending, sponsoring, exhibiting or speaking at the event, visit: http://bit.ly/PVC2013.
These one-day seminars are given by an AMI director and provide invaluable insights into market trends and industry strategies. They are held in small groups and provide ample opportunities for questions and discussions.
25 June 2012: Chicago, USA
16 October 2012: Cologne, Germany 5 November 2012: Philadelphia, USA More dates to be confirmed