Sou Hu Cai Jing·2026-01-12 06:51Group 1 - China Petroleum & Chemical Corporation (Sinopec) has applied for a patent titled "Method for Synthesizing Ester Compounds," with publication number CN121293133A, filed on July 2024 [1] - The patent involves a method in the field of organic synthesis, specifically for synthesizing ester compounds by mixing organic acid and alcohol raw materials under the action of a homogeneous catalyst, achieving a conversion efficiency improvement through precise control of the mixing index [1] - Sinopec was established in 2000 and is primarily engaged in oil and gas extraction, with a registered capital of approximately 12.17 billion RMB, having invested in 268 companies and participated in 5,000 bidding projects [1] Group 2 - Sinopec (Shanghai) Petrochemical Research Institute Co., Ltd. was established in 2022, focusing on research and experimental development, with a registered capital of 498 million RMB [2] - The research institute has invested in 2 companies, participated in 2,637 bidding projects, and holds 859 patent records, along with 133 administrative licenses [2]