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Abstract of Polymers     2009

Innovation at DSM Elastomers: An Introduction

DSM Elastomers produces, markets and sells ethylene-propylene copolymers (EPM) and terpolymers (EPDM) under the trade name Keltan. Also a business unit producing, marketing and selling thermoplastic vulcanizates (TPV) under the trade name Sarlink is part of DSM Elastomers. The short introductory presentation focuses on the EP(D)M side of the business. For over 40 years Keltan EP(D)M is produced. During these years Keltan has become a leading global brand for EP(D)M. Currently four plants produce Keltan EP(D)M: three in Geleen (NL) and one in Triunfo (Brazil). In those plants a grade slate with over 30 grades is produced that cover all applications EPDM is currently used for. With such a rich history one might wonder if there is still room for innovation in this business. The answer is a clear YES! For example, a new Reactive Extrusion line was opened in 2008 in Triunfo that produces modified EPM. The presentation will illustrate our Innovation Process and some of the most recent advances in Keltan EP(D)M process development, product development and application development as an introduction to the presentation by Herman Dikland on one of our latest breakthrough technologies: Keltan ACE TM.

New EPDM products with Keltan ACE(TM) technology

In November 2008 DSM Elastomers successfully implemented Keltan ACE(TM) technology in one of its existing plants in Geleen, The Netherlands. Keltan ACE (Advanced Catalysis Elastomers) technology imparts the use of a new generation catalyst systems for the production of EPDM. This new technology allows for cost efficient production of EPDM. Moreover, the significantly lowered catalyst consumption and energy requirements contribute to a cleaner product and a cleaner environment. Equally important is the ability to produce innovative EPDM polymers that are currently inaccessible through state-of-the-art Ziegler-Natta and conventional metallocene processes. Recently DSM Elastomers launched its first Keltan ACE(TM) product, Keltan DE8270C, targeted for peroxide cure applications of EPDM. Peroxide curing of EPDM nowadays is applied for 15% of the world production of EPDM. Main applications are found in window gaskets, automotive hoses and belts, cable insulation and heat-resistant belts and seals. Keltan DE8270C is best characterized as an amorphous, high Mooney, hyper-branched product, containing 3 wt% of 5-vinyl-2-norbornene (VNB) as the diene monomer. Keltan DE8270C is the first product in DSM Elastomers

Silicone rubber overview

During the last years the use of silicone rubber has drastically increased. From niche application in 1950, it

Tecnoflon FKM and FFKM portfolio: an overview on standard grades and specialties

The Tecnoflon portfolio will be briefly presented: FKM (copolymers and terpolymers with different curing chemistry, specialties) and FFKM grades, together with their main features, will be shown. Some FKM specialties will be described in more detail: in particular Tecnoflon VPLs (for very low temperature applications) and BRs (designed to withstand basic environments).

The History of Synthetic Rubber

The history of Synthetic Rubber (SR), at its early stages, can be closely related to the contemporary political and strategic context. Thus, the supply (or shortage) of Natural Rubber (NR) accelerated resp. retarded research and developmental work. Likewise, NR properties set the standard and defined the target to be achieved. 1909 may be considered to be the birth date of SR, when a patent was filed for the synthesis of Methyl Rubber. In fact, no theoretical background existed at the time with regard to molecular or physico-chemical knowledge. (This ignorance continued for many years; rubber technologists started only very recently to understand