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LANXESS Officially Launched Two New Easy Processing NdPBR Rubber Grades - Synthetic rubber pioneer and world largest producer of NdPBR (neodymium polybutadiene) LANXESS has officially launched two new easy processing NdPBR rubber grades to ease the production of for example, fuel-efficient tires - Buna.com / LANXESS.com
LANXESS Officially Launched Two New Easy Processing NdPBR Rubber Grades

 

NewswireToday - /newswire/ - Cologne, Germany, 2013/10/01 - Synthetic rubber pioneer and world largest producer of NdPBR (neodymium polybutadiene) LANXESS has officially launched two new easy processing NdPBR rubber grades to ease the production of for example, fuel-efficient tires - Buna.com / LANXESS.com. FRA: DE Frankfurt: LXS

   
 
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This brings more options for tire development.

Buna Nd 22 EZ and Buna Nd 24 EZ are among others characterized by high molar masses necessary to fabricate tires with outstanding low rolling resistance, but are still exceptionally easy to process due to new LANXESS rubber modification technology. Hence these new modified NdPBR grades represent attractive alternatives for the high performance NdPBR Buna CB22 and Buna CB24 rubbers already widely applied in the tire industry. Both grades are now available in sample- and industrial size quantities.

“Within the last years, energy efficiency without negative influence on other properties has become one of the main issues in the tire industry,” says Dr. Joachim Grub, Head of the Performance Butadiene Rubbers business unit at LANXESS,“as automobiles are responsible for about 26 % of carbon dioxide emissions in the EU. However, energy saving tires can help to reduce CO2-emissions on our roads substantially. Especially our neodymium polybutadiene rubbers are recognized as a key-enabler for the production of high performance tires with a low rolling resistance and therefore reduced fuel consumption leading to less emissions.”

One of the key properties of these rubbers is their narrow polydispersity which leads to higher molar mass. “The higher a rubber’s molar mass, the lower can be the tire‘s rolling resistance,” explains Grub. “So, high molecular weight NdPBR is superior to other PBR types with broader polydispersity in key properties such as rolling resistance and abrasion. However, high molar masses until now were correlated with high-Mooney viscosities, presenting a crucial hurdle to overcome in order to get the best performance out of regular high performance NdPBR rubbers. The processability of these high molecular weight polymers has been the key issue for years and an important challenge for us to help our customers. For those who have long mastered to utilize the most sophisticated high molecular weight polymers, the new materials may provide an opportunity to gain productivity. Now we can offer our customers a promising solution utilizing new LANXESS rubber modification technology.”

In technical terms, this modification technology of the new NdPBR grades Buna Nd 22 EZ and Buna Nd 24 EZ is designed to create long chain branching, which accelerates the fast and reliable incorporation of fillers into the rubber matrix and improves processing. In addition, a proprietary chemical modification of the chains enhances the rubber/filler interaction, especially with carbon black in sidewall compounds maintaining the dynamic performance of the tires made with the new grades at the high level of LANXESS standard NdPBR grades. NdPBR is rarely used on its own but in blends with other polymers particularly solution SBR in tire tread formulations using silica as the filler. It has been shown that the modification also enhances the inter polymer phase distribution. This will lead to improved distribution of the filler in the resultant compound. In addition, the LANXESS rubber experts have achieved a significant increase in the rubber’s tackiness on the mill without adding any processing aids.

“Summing up, these new modified NdPBR grades Buna Nd 22 EZ and Buna Nd 24 EZ represent attractive alternatives for high performance rubbers such as NdPBR Buna CB22 and Buna CB24. They show similar properties but are characterized by considerably easier processing characteristics,” states Grub. Buna Nd 22 EZ, for example, can be processed in the same way as Buna CB24, but matches the dynamic performance of the high-Mooney grade Buna CB22, whose processing was much more demanding. Buna Nd 24 EZ gives performance levels roughly equivalent to Buna CB24, but is as easy to process as a cobalt-polybutadiene rubber. “This enables tire manufacturers to take their products’ performance to the next level,” says Grub. “And we believe, this is still not the end of the flagpole: LANXESS is not just the world‘s largest rubber supplier relying purely on sophisticated R&D alone. We are also proactively listening to the rubber industry as can be seen in the fact that we are testing our new tire rubbers using very relevant conditions in dedicated tire testing laboratories resulting in the outstanding performance of our AA concept tire we presented in September 2012. We are still on the road to develop even, greener‘ tire rubbers and put them on the road even faster.”

LANXESS is currently on track with the construction of the world's largest NdPBR plant in Singapore. The German specialty chemicals company is investing roughly EUR 200 million in a 140,000 metric tons per annum facility on Jurong Island. The facility will be the largest of its kind globally and will serve the growing market for “Green Tires”, especially in Asia. About 100 jobs will be created.

More product information on Buna.com/.

LANXESS (lanxess.com) is a leading specialty chemicals company with sales of EUR 9.1 billion in 2012 and roughly 17,500 employees in 31 countries. The company is currently represented at 52 production sites worldwide. The core business of LANXESS is the development, manufacturing and marketing of plastics, rubber, intermediates and specialty chemicals. LANXESS is a member of the leading sustainability indices Dow Jones Sustainability Index (DJSI) World and FTSE4Good as well as the Carbon Disclosure Leadership Index (CDLI).

 
 
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Written by / Agency / Source: LANXESS

 
 

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LANXESS Officially Launched Two New Easy Processing NdPBR Rubber Grades

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Tire Performance | LANXESS
Publisher Contact: Udo Erbstößer - LANXESS.com 
+49 214 30 54529 udo.erbstoesser[.]lanxess.com
 
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