Sou Hu Cai Jing·2025-10-28 20:29Group 1 - The core point of the article is that China National Petroleum Corporation (CNPC) has recently obtained a new patent for a transmission lubricant composition, which demonstrates excellent extreme pressure properties and outstanding copper corrosion protection performance [1][2] Group 2 - The newly authorized patent is titled "A Transmission Lubricant Composition and Its Preparation and Application," with the application number CN202310742975.0, and the authorization date set for October 28, 2025 [1] - The lubricant composition includes various components such as phosphorus-containing agents, thiocarboxylic ester additives, antioxidants, and base oil, with specific proportions detailed in the patent [1] - In 2023, CNPC has received a total of 1,435 patent authorizations, which is a decrease of 16.96% compared to the same period last year [2] - The company invested 9.899 billion yuan in research and development in the first half of the year, reflecting a year-on-year increase of 2.51% [2] - CNPC has made investments in 1,290 enterprises and participated in 443 bidding projects, showcasing its active engagement in the market [2]