Sou Hu Cai Jing·2026-01-16 11:22Group 1 - The core point of the article is that China Petroleum & Chemical Corporation (Sinopec) and Sinopec Yangzi Petrochemical Company have applied for a patent for a method to produce high melt strength polypropylene, which aims to enhance production efficiency without increasing energy consumption or material costs [1][2] Group 2 - The patent application, published as CN121319282A, was filed on July 2024 and describes a multi-reactor polymerization process that incorporates a crosslinking agent in the final reactor, which is a gas-phase polymerization reactor [1] - The production method allows for the simultaneous achievement of high melt strength polypropylene, eliminating the need for secondary processing that was previously required for crosslinking modification [1] Group 3 - Sinopec, established in 2000 and headquartered in Beijing, primarily engages in oil and gas extraction, with a registered capital of approximately 121.74 billion RMB [1] - Sinopec has invested in 269 companies, participated in 5000 bidding projects, and holds 5000 patent records along with 45 trademark registrations [1] Group 4 - Sinopec Yangzi Petrochemical Company, founded in 2006 and located in Nanjing, focuses on oil, coal, and other fuel processing, with a registered capital of approximately 156.51 billion RMB [2] - The company has invested in 13 enterprises, participated in 5000 bidding projects, and holds 1030 patent records along with 20 trademark registrations [2]