The material selection platform
Plastics & Elastomers
The material selection platform
Plastics & Elastomers
Product News

LANXESS at Tire Technology Expo: Unveiled SSBR Rubber Products for Energy-efficient Tires

Published on 2015-02-13. Author : SpecialChem

COLOGNE -- Specialty chemicals company LANXESS appeared at Tire Technology Expo [Feb 10-12] in Cologne to present its comprehensive range of solutions for the tire industry, from new rubber products and additives to processing aids for use in production.

The newly formed LANXESS Tire & Specialty Rubbers business unit introduced two innovative SSBR product developments: Buna FX 3234A-2HM and Buna VSL 3038-2HM. These high-performance rubber products offer tire manufacturers even better options for producing energy-efficient tires with low rolling resistance. Also new is the LANXESS Rhein Chemie Additives business unit, which were exhibited products from its extensive portfolio, such as eco-friendly Rhenodiv release agents, Rhenomark tire marking paints, the well-known anti-reversion agent Perkalink 900 and the crosslinking additive Vulcuren.

LANXESS experts from both business units are contributing a number of high-level papers and presentations to the conference. Interested visitors can drop by Stand 5120 to get comprehensive information, or to ask questions about the LANXESS technical papers and presentations.

Tire & Specialty Rubbers business unit: New SSBR rubber products for continued performance enhancement

LANXESS has developed two new rubber products as alternatives to Buna VSL 2438-2HM, used so widely at present in the tire industry. Buna FX 3234A-2HM is the first rubber product in the newly established Buna FX family, and is to be followed by others. The functionalized SSBR grade displays improved polymer/filler interaction in the tread mix, which reduces hysteresis and therefore the rolling resistance of the tires. Grip also has been improved. The product's glass transition temperature Tg is -30 °C. LANXESS simultaneously is investigating other technologies for functionalizing rubber to further enhance the properties of these mixes.

The second new rubber grade, Buna VSL 3038-2HM, expands the existing Buna VSL family. It is an oil-extended SSBR with a 38 percent styrene content and 30 percent vinyl content. Its glass transition temperature Tg is 6 °C higher at -26 °C, meaning it can, as expected, provide better grip properties without compromising on rolling resistance. Better grip can be exploited to reduce tread wear, while at the same time achieving outstanding friction coefficients. The higher glass transition temperature of Buna VSL 3038-2HM makes it possible, for example, to add more NdBR to the compound, such as Buna CB 24, and thus raise the friction coefficients to a level comparable to that of Buna VSL 2438-2HM or Buna VSL 5025-2HM. The wear resistance of the tread increases significantly as a result.

After the addition of 37.5 phr TDAE oil, Buna FX 3234A-2HM as well as Buna VSL 3038-2HM displays a Mooney viscosity of 80 MU – a high value that additionally ensures excellent abrasion resistance. The high styrene content of 34 or 38 percent promotes high dynamic stiffness, making these rubber products ideal for high-performance summer tires.

“Tire Technology Expo is an excellent opportunity to introduce our products and expand our network of contacts in the tire industry,” says David Hardy, Technical Marketing Manager in the LANXESS Tire & Specialty Rubbers business unit. “The effect will be to further accelerate the development of even more energy-saving 'green' tires. We believe our synthetic rubber grades can significantly lower the rolling resistance of the current generation of tires even more.”

Rhenowave – a new in-line quality control for black rubber compounds

Rhenowave is a new in-line quality control for black rubber compounds presented by Rhein Chemie Additives business unit. Here, ultrasound waves are transmitted through the rubber compounds, for example during an extrusion process. The ultrasound attenuation coefficient determined in this way is characteristic for the composition of the rubber compound, with it being possible in particular to precisely determine the proportion and thus the distribution of fillers. In addition, large foreign bodies such as wood splitters and also large filler agglomerations (macrodispersions) are clearly identified. The distribution of crosslinking additives can also be determined when these are added in the form of Rhenogran AP with marker (zinc oxide as heavy filler). Quality testing with Rhenowave is quick and representative and enables rubber compounding processes to be optimized in terms of low reject rates and, at the same time, high throughput.

Technical presentations on rubber technology

“The extremely broad range of topics we cover in these papers demonstrates the many fronts on which LANXESS employees are working to advance the development of modern, high-performance tires,” summarizes Hardy. “Tires are highly complex products that must fulfill an increasingly broad range of requirements. LANXESS is active in every aspect of tire technology, from additives and high-performance rubber grades, to analytical rubber chemistry and tire testing. That makes us one of the most experienced partners in the industry.”


LANXESS is among the leading specialty chemicals companies with sales of EUR 8.3 billion in 2013 and about 16,700 employees in 29 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 DJSI Europe) and FTSE4Good.


Back to Top