The most important recent news about carboxylated nitrile rubber (XNBR) focuses on domestic technological breakthroughs and high-end industrial applications. In the past, this material was highly dependent on imports, but PetroChina has successfully broken through the technical blockade and achieved localization, filling the domestic gap in key matrix materials in the field of electronic information.
1. Core technology breakthroughs and industrialization (latest in February 2026) were selected as national-level scientific and technological progress: PetroChina's independently developed carboxyl high-efficiency copolymerization and extremely low ion content control technology successfully solved the production problem of XNBR, and its results won the "Top Ten Scientific and Technological Progress of PetroChina in 2025". Breaking the foreign monopoly: As a high-end product of nitrile rubber, previously high-performance XNBR relied entirely on imports. The mass production of new domestic materials has successfully broken the foreign technological blockade and met the demand for high-end materials for adhesives in the electronic information field.
2. Domestic mass production and indicators meet Lanzhou Petrochemical's mass production success: PetroChina Lanzhou Petrochemical and Chemical Research Institute and other units worked together to successfully develop and produce a high-performance XNBR-3304 product series. Quality meets standards: After analysis by the professional quality inspection department, all indicators of domestically produced XNBR-3304 have reached the quality standard, marking that this high-end product has successfully entered the industrial trial production and application stage.
3. Market prospects and industry growth The market scale continues to expand: The carboxylated nitrile rubber market maintains steady growth globally. Thanks to the demand from the automotive industry and the strong industrialization process in the Asia-Pacific region, the market size is expected to exceed US$6.4 billion by 2035.