Sou Hu Cai Jing·2025-11-25 02:24Group 1 - The core point of the article is that China Petroleum & Chemical Corporation (Sinopec) and its subsidiary, Sinopec Yizheng Chemical Fiber Company, have been granted a patent for a short-process reaction device and method for producing polyester for bottles, with the patent number CN 116459747 B and application date of January 2022 [1] Group 2 - China Petroleum & Chemical Corporation was established in 2000 and is based in Beijing, primarily engaged in oil and gas extraction [1] - The registered capital of China Petroleum & Chemical Corporation is approximately 121.74 billion RMB [1] - The company has invested in 268 enterprises and participated in 5,000 bidding projects, with 45 trademark records and 5,000 patent records [1] - Additionally, the company holds 41 administrative licenses [1]