Sou Hu Cai Jing·2026-01-14 04:13Group 1 - The core point of the article is that China National Petroleum Corporation (CNPC) has applied for a patent for a new type of polyether base oil and its preparation method, indicating innovation in the oil and gas sector [1] - The patent application, published as CN121319355A, was filed on July 2024 and describes a polyether base oil produced through a melt polycondensation method [1] - The unique structure of the polyether ester includes alternating ether and diester bonds, which enhances its performance characteristics such as viscosity-temperature performance, oxidation resistance, rust prevention, and anti-wear properties [1] Group 2 - CNPC was established in 1999 and is primarily engaged in oil and natural gas extraction, with a registered capital of 18,302,097,000 RMB [1] - The company has made investments in 1,296 enterprises and participated in 443 bidding projects, showcasing its extensive involvement in the industry [1] - CNPC holds 38 trademark registrations and 5,000 patent records, along with 168 administrative licenses, reflecting its significant intellectual property portfolio [1]