Japanese tyre major the Yokohama Rubber Co in joint-research with Dr. Bo Nils Johan Persson have successfully developed in December 2024, the world’s first theoretical model to predict the rubber wear-rates on uneven road surfaces and the size distribution of wear particles.

Dr Persson is a leading a leading expert in the study of rubber friction and contact, contact, friction, wear and lubrication, including rubber friction. He is associated with Peter Grunberg Institute (Germany) and Lanzhou Institute of Chemical Physics (China).

He also runs a company called Multiscale Consulting (Germany) that supports companies in the rubber industry and beyond in addressing various challenges.

What’s more Dr. Persson’s unique approach to contact mechanics and rubber friction have been documented in numerous peer-reviewed academic journals and verified by other scientists, proving its effectiveness in solving a wide range of problems.

The new research was selected as the most noteworthy item and featured as the cover story in the 21 February 2025 edition of ‘The Journal of Chemical Physics’ published by the American Institute of Physics.
Yokohama Rubber known for its extensive track record in rubber research and advanced technological development capabilities, entered into a contract with Multiscale Consulting to collaborate with Dr. Persson in studying friction and wear on rubber and road surfaces.

The partners successfully developed what they claim is the world’s first theoretical model for multiscale (ranging from nanometre to centimetre levels) rubber wear behaviour on uneven road surfaces, for which theorisation had been difficult in the past. Experiments measuring rubber wear behaviour when sliding in both dry and wet conditions at different contact pressures and sliding speeds showed that the theoretical model’s predictions of wear-rates (mass loss per unit of sliding distance) and size distribution of wear particles aligned closely with the experimental results, confirming that the model could be used for such predictions.

Going forward, Yokohama Rubber plans to continue conducting research with Dr. Persson and Multiscale Consulting in order to pursue the development of tyres with high-level wear resistance.

In addition, Yokohama will continue to focus on reducing tyre wear, which is a leading demand for EVs to have reduction in environmental issues.

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KraussMaffei has appointed Xinting Ren as Managing Director of its extrusion business, effective 1 September, 2026, combining the role with his existing leadership of the group’s China operations.

Ren succeeds Ralf Benack, who left the company at his own request on 31^st August , ending a tenure of about two years.

The company said the dual appointment is intended to strengthen integration between its extrusion activities and international operations.

Ren has led KraussMaffei China for the past three years, overseeing cross-technology activities in the Chinese market. Before joining the group, he held several management roles in the chemical industry, including Assistant General Manager at KraussMaffei Company Limited, now operating as Sinochem Equipment Technology Qingdao Co., and most recently served as general manager of Shanxi China Coal Pingshuo Energy Chemical Co., Ltd.

Benack took over leadership of KraussMaffei Extrusion in 2024 and was responsible for the group’s global extrusion business. During his tenure, the company focused on operational processes and customer orientation, reducing delivery times and further developing the Technology Center at its Laatzen site.

The facility now offers 26 pilot lines for development and customer projects, and the company said it also expanded its extrusion technology portfolio.

From September, responsibility for the extrusion business and management of the China business will be combined under Ren’s leadership.

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Nokian Tyres plc has introduced a new premium summer tyre, the Powerproof E, designed for Central and Southern European markets, with A-class ratings in all three European Union tyre label categories across its full range.

The company said the tyre achieves top grades for rolling resistance, wet grip and external rolling noise, reflecting a development approach aimed at balancing efficiency, safety and comfort within a single product.

“Whether the priority is maximizing range and efficiency or achieving confidence and comfort in wet conditions, drivers should not have to compromise on safety. The new Nokian Tyres Powerproof E is designed to deliver outstanding performance in the areas that matter most to drivers,” said Tommi Alhola, Senior Vice-President for Passenger Car tyres in Central Europe.

Samu Lepistö, development manager at the company, added: “Achieving A-class ratings in all three EU tire label categories across the entire range is a significant result. These characteristics are all important to today's drivers yet improving one can often affect another. Nokian Tyres Powerproof E was developed to deliver balanced performance across all three areas.”

The tyre incorporates what the company calls Motion Control Technology, combining tread design, compound development and structural engineering to support efficiency and wet-weather performance.

Depending on size, between 40.9 percent and 42.8 percent of the tyre’s material content consists of recycled and renewable inputs, including rice husk ash, recycled carbon black and recycled steel.

Production takes place at the group’s factory in Oradea, Romania, which opened in 2024 and operates with zero direct carbon dioxide emissions, powered by renewable energy.

The Powerproof E is designed for passenger cars, sport utility vehicles and crossover vehicles, including electric, hybrid and internal combustion models. It will be available in sizes ranging from 16 to 20 inches for the 2027 summer season in Central and Southern Europe.

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Continental Tire Canada has appointed Frank Buntinx as its new Managing Director, effective 17 August 2026. In this executive capacity, he assumes comprehensive oversight of the organisation’s entire Canadian tyre portfolio, which encompasses passenger and light truck vehicles, commercial truck lines and specialised tyre segments. His leadership will guide the strategic direction and operational performance across these diverse business units.

A native of Belgium, Buntinx brings over two decades of tenure with Continental, having commenced his career there in 2003 within logistics and supply chain management. Over the years, he has accumulated a broad commercial skillset through successive roles in marketing, pricing strategy, business analytics, fleet operations and sales. His professional trajectory later elevated him to senior leadership positions in the Benelux region, where he directed marketing efforts and subsequently headed Fleet Solutions and Truck Tires, thereby acquiring multifaceted management expertise.

This transatlantic appointment signifies a pivotal career transition for Buntinx, offering him the chance to infuse the Canadian market with an international vantage point. His arrival is anticipated to bolster Continental’s regional presence, leveraging his extensive cross-functional background to navigate the complexities of the domestic tyre industry and drive organisational growth.

“I am truly excited to join Continental Tire Canada and begin this new chapter. Continental has built a strong business and reputation in the Canadian market, and I look forward to working alongside our talented team to build on that success, strengthening Continental's position while supporting the growth and success of our customers,” said Buntinx.

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Sumitomo Rubber Industries, Ltd., which operates the Dunlop brand, will discontinue the supply of karting tyres by the end of 2027 as part of a strategic review of its business and allocation of management resources.

The company said it would continue supplying products to existing customers until December 31, 2027.

Dunlop has produced karting tyres since 1976, supplying products homologated by the Commission Internationale de Karting-FIA (CIK-FIA), under the Fédération Internationale de l’Automobile, as well as tyres accredited by the Japan Automobile Federation.

The company said its products had supported a wide range of users, from recreational drivers to young drivers aiming to compete at higher levels, and had contributed to the development of karting participation.

It added that the decision followed a review of its medium- to long-term management strategy and changes in the business environment.

The group said it would continue to contribute to motorsport activities, while expressing appreciation to customers and organisations that had supported its karting tyre business.

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