News

Unlocking Innovation: Lenovo Holdings’ Venture into XDI Technology

Lenovo Holdings recently made waves in the industrial sector with the acquisition of XDI technology through its subsidiary, Lianhongxin Company. This cutting-edge green manufacturing technology is poised to revolutionize various industries, offering a wide array of applications in high-end coatings, paints, flexible packaging, elastomers, outdoor sealants, leather, adhesives, and more. The integration of XDI technology is set to propel Lianhongxin Company towards industrial project development, paving the way for innovative advancements in production and sustainability.

XDI technology, characterized by its phenyl-isocyanate structure, boasts exceptional weather resistance, color stability, and adhesion properties. Its versatility spans across industries, promising enhanced product performance and quality in coatings, paints, packaging materials, elastomers, sealants, leather goods, adhesives, and beyond. With this groundbreaking technology at their disposal, Lenovo Holdings stands at the forefront of industrial innovation, poised to unlock a new era of sustainable and high-performance solutions.

The acquisition of XDI technology signifies a strategic move by Lenovo Holdings to diversify its portfolio and drive forward-thinking initiatives in the industrial landscape. As global players like Mitsui Chemicals lead in XDI supply, the emergence of companies like Wanhua Chemical, Hanwha Chemical, and Pingmei Shenma in the XDI domain underscores the technology’s significance and growth potential on a global scale.

With the localization of XDI technology on the horizon, the Chinese market is poised to witness a surge in innovation and industrial development. This technological breakthrough presents a unique opportunity for industry players to capitalize on the versatility and performance benefits of XDI, driving sustainable growth and fostering a culture of innovation in the industrial sector. Lenovo Holdings’ venture into XDI technology marks a significant step towards unlocking new possibilities and shaping the future of industrial manufacturing.

XDI provides polyurethane products with excellent weather resistance and optical properties. XDI is the abbreviation of xylylene diisocyanate. It is a transparent colorless liquid at room temperature. It is an aliphatic isocyanate (ADI) containing benzene ring and has excellent weather resistance, color stability and adhesion. There are three isomers of XDI, namely ortho (o-XDI), meta (m-XDI) and para (p-XDI). Industrial products are mainly pure m-XDI, and there are also isomer mixtures of m-XDI (70%-75%) + p-XDI (30%-25%).

In the molecular structure of XDI, the isocyanate group (-NCO) and the benzene ring are blocked by methylene (-CH2-), which avoids the resonance phenomenon between the benzene ring and the isocyanate group, making XDI and its polyurethane products stable to light and non-toxic. It turns yellow and shows excellent weather resistance. It is suitable for the production of polyurethane materials such as high-end coatings, paints, flexible packaging, elastomers, outdoor sealants, leather and adhesives.

As a high refractive index ophthalmic lens material (above 1.60), XDI not only has high durability, but also brings innovation to clear vision, high strength and free design. It is the first choice of ultra-light and ultra-thin ophthalmic lens materials. Best choice. Mitsui Chemicals was the first company in the world to commercialize it. As early as 1994, Mitsui Chemicals applied for a Chinese patent for sulfur-containing polyurethane resin synthesized from XDI, trithiol and aliphatic thiol. As a coating and functional material, XDI is widely recognized for its excellent yellowing resistance and rapid curing properties. Because polyurethane optical materials have very important applications in the fields of optical components such as large aircraft and fighter jets, military high-precision detection equipment, weapon sighting systems, etc., XDI production technology has strong confidentiality, and most public technical information is patented. presented in the form.

Mitsui Chemicals is the main supplier and will expand production by another 20% in 2025. Mitsui Chemicals was the first company to commercialize XDI and is currently the main supplier of XDI. Mitsui Chemicals launched 5,000 tons/year XDI production capacity at its factory in Omuta, Japan, in 2015. On February 26, 2024, Mitsui Chemicals announced that in order to meet the growing demand for curing agents for yellowing-resistant coatings, the company decided to increase the production capacity of its xylylene dimethyl isocyanate (XDI) plant in Omuta, Japan. This will expand the company’s domestic XDI production capacity in Japan by 20%. The project is scheduled to start construction in February 2024, be completed in July 2025, and put into operation in September 2025. Mitsui Chemicals uses the liquid phase phosgenation method for production.

Mitsui Chemicals’ m-XDI brand is Takenate 500. To synthesize XDI industrially, mixed xylene (meta/comparative ratio is 70/30) can be directly used as raw material, and ammoxidized to phthalonitrile through high temperature and high pressure. The phthalonitrile is hydrogenated under pressure to form xylylenediamine isomers. The mixture is then phosgenated to obtain XDI.

Wanhua Chemical XDI project has been constructed. According to the environmental impact report of the special isocyanate project released by Wanhua Chemical in 2022, the main production equipment of the special isocyanate project being constructed by Wanhua Chemical includes an HMDA/BAC unit (HMDA and 1,3-BAC products can be switched Production), XDI/H6XDI device (XDI and H6XDI products can be switched for production), HMDI phase II device and tail gas decomposition and absorption device, supporting public works, etc. It is expected that Wanhua Chemical will be the first company to industrialize XDI.

Hanwha Chemical began commercial production of XDI in 2020. Hanwha Solutions has started commercial production of XDI using localized technology in 2020. The company produces XDI at its factory in the southern industrial port city of Yeosu, with an annual production capacity of 1,200 tons. Hanwha Solutions produces polyvinyl chloride (PVC) and polyolefins, as well as solar solutions and composite materials. The company aims to provide high-quality raw materials to domestic optical lens manufacturers.

Pingmei Shenma completed pilot development. Announced its XDI pilot research results in 2017, Huarui Chemical New Materials is jointly funded by China Pingmei Shenma and its strategic partner, Zhongrui Holdings. It has been developed since 2013 and has successfully produced products with XDI content >99.5% by using the process of salt formation – cold light – hot light – distillation. The crude yield of the product is over 90%.

In addition, there are domestic enterprises such as Hangzhou Yilian Chemical, Tianjin CITIC Kaitai Chemical, Gansu Yinguang, Yellow River Delta Jingbo Chemical Research Institute, Qingdao Yinke Hengyuan Chemical, Hangzhou Chongshun Chemical, Hunan Haili, Jiangyin Wanfeng Chemical, etc. The unit has successively conducted relevant research or development work in XDI. As the localization of XDI begins, downstream applications are also expected to expand significantly.

error: Content is protected !!