INEOS Oligomers launched DIB99S, a high-purity stabilized diisobutylene offering improved oxidation resistance, longer shelf life, and superior industrial performance.
INEOS Oligomers has strengthened its global portfolio of diisobutylene (DIB) products with the introduction of DIB99S, a high-purity hydrocarbon olefin developed to deliver enhanced performance, improved storage stability, and extended shelf life for a wide range of industrial applications. The launch reflects the company’s ongoing focus on providing advanced chemical solutions that meet the evolving requirements of customers operating in specialty chemical manufacturing, lubricant production, polymer modification, and other high-value industrial sectors.
The newly introduced product, marketed as Diisobutylene 99% with BHT (DIB99S), combines highly purified diisobutylene with butylated hydroxytoluene (BHT), a widely recognized antioxidant used to protect chemicals against oxidative degradation. By incorporating BHT into the formulation, INEOS Oligomers has designed a product that maintains its chemical integrity during storage and transportation while minimizing the effects of oxidation. This added protection helps preserve the quality of the material over extended periods, making it particularly suitable for applications where long-term stability is essential.
DIB99S has been specifically engineered to meet the requirements of industries that demand exceptional product purity, predictable reactivity, and consistent performance. High-purity hydrocarbon olefins play a critical role in numerous specialty chemical processes, and maintaining their quality throughout storage is vital for ensuring reliable downstream manufacturing operations. The antioxidant component serves as a stabilizing agent that protects the olefin from unwanted oxidation, thereby extending shelf life and reducing the likelihood of quality deterioration before use.
According to INEOS Oligomers, the launch of DIB99S demonstrates the company’s commitment to supplying customers with premium-quality hydrocarbon building blocks that combine high purity with enhanced stability. Gary Gudac, North American Technical Manager at INEOS Oligomers, stated that the new product has been developed to provide customers with a dependable and well-stabilized solution capable of meeting demanding application requirements. He emphasized that by integrating high-purity diisobutylene with an effective antioxidant, the company offers a product that supports both superior performance and easier handling throughout the supply chain.
One of the distinguishing characteristics of DIB99S is its industry-leading concentration of 2,4,4-trimethylpentene-1 (TMP1), a highly valuable structural component that significantly enhances the product’s effectiveness as a reactive intermediate. A higher TMP1 content increases the versatility of the material, making it particularly attractive for manufacturers involved in specialty chemical synthesis and advanced industrial formulations. This elevated purity and optimized composition enable improved reaction efficiency and greater consistency across various production processes.
The product is manufactured through the dimerization of isobutene, a well-established chemical process that produces high-quality diisobutylene suitable for demanding industrial applications. Owing to its carefully controlled composition and high TMP1 concentration, DIB99S is positioned for use in polymer modification, lubricant additive production, and specialty chemical manufacturing, where both stability and controlled chemical reactivity are essential performance attributes.
With the introduction of DIB99S, INEOS Oligomers continues to expand its portfolio of value-added hydrocarbon products designed to support customers seeking reliable raw materials with enhanced storage characteristics and consistent processing performance. The launch reinforces the company’s strategy of developing innovative chemical intermediates that improve operational efficiency while addressing the industry's growing demand for high-performance, stable, and high-purity specialty chemicals. By combining advanced product formulation with robust stabilization technology, DIB99S is expected to provide manufacturers with greater confidence in product quality, handling, and long-term usability across a broad spectrum of industrial applications.
Impact of the product
The launch of DIB99S is expected to strengthen the availability of premium-grade diisobutylene for specialty applications such as polymer modification, lubricant additives, and specialty chemical synthesis. By offering enhanced oxidation resistance, longer shelf life, and higher TMP1 purity, the product will improve processing efficiency and reduce material losses for downstream manufacturers. However, since this is primarily a product innovation rather than a major capacity expansion, its immediate impact on overall market supply is likely to be limited.
For chemical commodities tracked by ChemAnalyst, the announcement is expected to have a neutral to slightly bearish impact on high-purity diisobutylene prices over the medium term as improved product availability and storage stability enhance supply chain efficiency. Feedstocks such as isobutene are unlikely to witness any significant price movement because the launch does not materially alter production capacity or feedstock demand. Downstream specialty lubricant additives and polymer intermediates may benefit from improved supply reliability and product consistency rather than notable price reductions.
