NISSO-PB is Nippon Soda’s independently synthesized liquid 1,2-polybutadiene, characterized by its high 1,2-vinyl content and high reactivity. This distinctive molecular structure differentiates NISSO-PB from conventional liquid polybutadienes and enables it to participate effectively in crosslinking reactions. Using EPDM as an example, this seminar will demonstrate how the high 1,2-vinyl content of NISSO-PB influences rubber performance, including mechanical properties, oil resistance, and compression set. The seminar will also introduce liquid 1,2-epoxidized polybutadiene for halogenated rubbers. Its epoxy groups function as acid acceptors, while its remaining 1,2-vinyl units contribute to crosslinking. The use of liquid 1,2-epoxidized polybutadiene in halogenated rubber formulations can enhance performance, including water and acid resistance. Its potential as an alternative to conventional lead-based acid acceptors will also be discussed, highlighting its contribution to more sustainable rubber formulation design.

This talk will review the development of reinforcing fillers such as carbon black to address key performance challenges for tires and rubber goods. A focus is placed on simulation techniques which can assist the targeted development and selection of carbon blacks for multi-component engineered devices such as tires, where interactions and tradeoffs between component compounds are critical to holistic tire performance, yet are frequently overlooked. We will also demonstrate how insights from component FEA simulations can be used to guide carbon black selection for automotive bushings, resulting in simultaneous benefits to durability and dynamic performance of final components. Microstructural simulations of particle reinforced rubber compounds are also reviewed.

A novel bio‑based multi‑citraconimide oligomer AR906 (≈50 wt% bio‑content) was synthesized via amidation and dehydration‑cyclization with over 90 % yield. Combining rigid imide rings and flexible oligomer segments, AR906 acts as a multi‑functional rubber additive for high‑performance tires.

FT‑IR and ¹H‑NMR verified its target structure. During vulcanization, AR906 forms‑C‑S‑hybrid networks via Michael addition with NR and repairs broken sulfur cross-links through Diels‑Alder reaction. Higher functionality builds denser 3D crosslink networks with enhanced reactivity.

In TBR tread and apex compounds, AR906 maintains excellent anti‑reversion performance, it improves crosslink density, hardness, tensile and tear strength, while reducing hysteresis loss and heat build‑up.

Syensqo is a high-performance specialty chemicals manufacturer spun off from Solvay. We are actively investing in FKM, a rapidly growing market, and addressing evolving PFAS regulations by commercializing a more sustainable innovation: Tecnoflon® FKM NFS, produced without the use of any surfactants. Tecnoflon® FKM NFS has been highly valued by customers for its strong performance and improved sustainability profile. In this presentation, we will introduce Tecnoflon® FKM NFS and outline its key features, application benefits, and how it supports customers’ sustainability goals.

This work presents a high-value closed-loop recycling route for end-of-life tires steel wires to solve waste tire pollution and save resources. The scrap steel wires from end-of-life tires are used as steelmaking raw materials, purified via electric furnace smelting and rolled into standard wire rods. Further deep processing produces qualified steel reinforcements for tire manufacturing. This technical solution combines environmental benefits with industrial value, providing a feasible industrial path for the resource utilization of end-of-life tires and the green circular development of the steel metallurgy and rubber industries.

Founded in 1919, Shiraishi Kogyo Kaisha, Ltd. has been manufacturing calcium carbonate. Our calcium carbonate products offer functional benefits such as enhancing strength and improving processability, and are used by customers across 12 industries, including rubber, sealants, inks, and food.

“Hakuenka”, produced by “Shiraishi Method,” is a surface-treated, ultra-fine calcium carbonate.

This presentation will introduce a brand-new application of our calcium carbonate, focusing on the use of “Hakuenka O” in rubber mixing process, to prevent bagging.

In addition, we will introduce our on-going project on CCU(Carbon Capture Utilization)-derived Precipitated Calcium Carbonate(PCC), which we have been developing in the last couple of years. This PCC is made from captured CO2 as exhaust gas from industrial plants, it however works as a functional filler & process aid in several applications.

Anti-vibration system (AVS) components such as mounts and bushings require distinct dynamic performance characteristics. Mounts typically demand low dynamic stiffness for improved vibration isolation, whereas bushings require higher rigidity for load support, isolation, and cushioning. Carbon black plays an important role in achieving these performance targets by influencing reinforcement and filler network development. A range of carbon black grades is evaluated to establish relationships among carbon black characteristics, dispersion quality, and the dynamic-to-static stiffness ratio (Kd/Ks), or spring rate. Variations in carbon black colloidal properties have been shown to influence the dispersion of the compound and its spring rate behavior, resulting in distinct performance profiles across the evaluated grades. The findings demonstrate how carbon black selection can be used to tailor dynamic stiffness for specific AVS components.

Liquid rubbers are polymers with molecular weights ranging from a few thousand to one hundred thousand, composed of isoprene, butadiene, and styrene. These polymers are widely used by rubber goods manufacturers to enhance processing and performance. This presentation covers the study on the effects of functionalized liquid rubbers on rubber performance including tire properties. Kuraray will present the advantages of incorporating functionalized liquid rubbers into natural rubber (NR) and silica formulations, which typically exhibit poor interaction.

H&R Group offers a range of bio-based and recycled oil alternatives to classic rubber process oils. In the presentation, you will be introduced to circular or bio-based process oil alternatives to classic process oils (low-PCA process oils, paraffinic process oils).

The demand for advanced rubber materials has been increasing with the electrification of automobiles, the enhancement of industrial equipment, and the growing focus on energy efficiency. As a result, demand is growing for specialty synthetic rubbers that offer a combination of properties such as heat resistance, oil resistance, and low-temperature performance.

In this presentation, we introduce “EPICHLOMER,” an epichlorohydrin rubber (ECO), and “RACRESTER,” an acrylic rubber (ACM), both manufactured and marketed by Osaka Soda Co., Ltd. EPICHLOMER offers a balanced combination of oil resistance, fuel resistance, low-temperature flexibility, and low gas permeability, providing excellent sealing performance and durability in automotive and industrial applications. In contrast, RACRESTER is characterized by outstanding heat and oil resistance, making it suitable for components used in high-temperature environments.

The key features, performance characteristics, and representative applications of these materials will be presented. In addition, a newly developed Non-post-cure grade will also be introduced.

Milastomer™ is an olefinic thermoplastic vulcanizate (TPV) that combines the excellent flexibility and rubber elasticity characteristic of vulcanized rubber with the processing advantages of thermoplastics. Thanks to its olefinic material characteristics, Milastomer™ offers excellent durability and weather resistance and is suitable for a broad range of applications, from automotive to industrial and consumer products.

In recent years, in addition to requirements for performance and quality, materials have been expected to contribute to resource efficiency, waste reduction, and lower environmental impact throughout their life cycle.

This seminar will introduce our TPV technologies that contribute to carbon neutrality, including the use of recycled raw materials aimed at reducing CO₂ emissions, as well as mono-material concepts for automotive interior applications designed to enhance recyclability.

In addition to these two topics, the seminar will introduce other new TPV technologies and discuss their concepts and key features.

KNEADER MACHINERY was the first manufacturer in Taiwan to produce pressurized kneaders. Since its establishment in 1981, the company has manufactured approximately 4,000 machines to date. As a leading manufacturer of rubber mixing machinery and equipment in Taiwan, KNEADER MACHINERY offers a comprehensive range of high-quality machines to meet the diverse needs of the rubber industry.

Rubber-to-substrate bonding is essential in automotive applications where vibration isolation, sealing, and durability are critical. Traditional solvent-based bonding systems pose environmental and safety concerns. Stahl’s RelcaDur system, comprising RelcaDur 300 (primer) and RelcaDur 600 (bonding agent), offers a sustainable, water-based alternative for bonding rubber to substrates such as steel, aluminum, and polyamides (PA 6 and PA 6.6). This paper outlines application methods, and performance characteristics of the RelcaDur system, highlighting its suitability for automotive NVH (Noise, Vibration, Harshness) components. Testing demonstrates excellent adhesion, chemical resistance, and durability, making RelcaDur a viable solution for modern automotive manufacturing.

In rubber materials development, formulation and process conditions, measurement data such as SAXS, and performance data are often managed separately, making it difficult and time-consuming to understand material behavior. This seminar introduces WAVEBASE, Toyota’s cloud-based materials analysis platform, and shows how synchrotron measurement data can be converted into quantitative features and linked with performance data. Through practical examples, we will explain how WAVEBASE helps visualize relationships between structure and performance, supports mechanism-based interpretation, and enables more efficient materials development.

This presentation introduces “BBMC,” a control system used in BB mixers. In addition to standard functions such as data logging and monitoring, BBMC offers optional functions including IoT capabilities, maintenance support, and AI, which is currently under development. The presentation also introduces newly developed statistical analysis software created as part of the AI development project.

EPDM is widely utilized in automotive and building applications owing to its excellent weatherability and heat resistance. Leveraging its proprietary catalyst technology, Mitsui Chemicals has developed high-performance EPDM grades exhibiting outstanding durability and low-temperature performance, which are being increasingly adopted across a wide range of applications. This presentation will highlight these successful applications and introduce emerging materials under development, including liquid VNB-EPT and VNB-EBT.

Here is an overview of our product lineup and technical features, highlighting NOXTITE ACM (acrylic rubber), trusted in the automotive industry for over 50 years, and ELTAS FFKM (perfluoroelastomer), designed for semiconductor manufacturing equipment and other high-tech applications.

JINGDAY MACHINERY, a Taiwanese manufacturer specializing in rubber molding presses. JINGDAY has built extensive experience in meeting the demanding specifications of customers worldwide. This section introduces JINGDAY MACHINERY’s key strengths and comprehensive lineup of rubber molding presses and equipment.

Tire wear particles are attracting increasing attention, especially in Europe and the United States. However, collecting them from actual vehicles requires time and cost, and contamination can be an issue. We therefore developed a laboratory test system that combines a material abrasion tester with a particle collection system. This seminar introduces the system and examples of particle size analysis.

Tires performance required since the global environments dramatically changed, our unique RTM friction tester should be great help for your material evaluation.

In recent years, rubber formulations have become increasingly advanced due to higher silica loadings for low rolling resistance tires and the growing use of recovered carbon black (rCB) for sustainability. However, reduced processability and poor filler dispersion during rubber mixing have become major challenges. This presentation introduces a nitrogen-derivative-based filler dispersant that provides excellent filler dispersion and contributes to improved processability and appearance quality of rubber products.

This presentation introduces a Data Management System for elastomer material development. By integrating development data, from rubber compound recipes to testing and evaluation results, into a single database, the system enhances R&D efficiency and improves information accessibility. A user experience tailored specifically to rubber development workflows encourages adoption by researchers and engineers, supporting both knowledge transfer and the preservation of technical expertise. The platform also serves as a foundation for data-driven innovation and future value creation.

The tyre industry is facing significant challenges driven by increasing sustainability requirements, electrification of vehicles, changing compound formulations and the need for higher manufacturing efficiency. Higher silica loadings, bio-based materials and recycled raw materials require more robust and precisely controlled production processes while simultaneously reducing energy consumption and greenhouse gas emissions. Consequently, machine technologies capable of improving process stability and resource efficiency have become an essential enabler for future tyre manufacturing.

The presentation will present two complementary technology developments addressing these challenges: a data-driven optimisation approach for the final mixing stage (Smart Final Mix) and an electrically heated curing technology replacing conventional steam-based curing.