Sou Hu Cai Jing·2025-12-03 10:35Core Insights - China Petroleum & Chemical Corporation (Sinopec) and Sinopec (Beijing) Chemical Research Institute have applied for a patent related to a thermoplastic elastomer composition, indicating a focus on advanced polymer composite materials [1][2] Company Overview - China Petroleum & Chemical Corporation was established in 2000, primarily engaged in oil and gas extraction, with a registered capital of approximately 12.17 billion RMB [2] - The company has invested in 268 enterprises and participated in 5000 bidding projects, holding 45 trademark records and 5000 patent records [2] - Sinopec (Beijing) Chemical Research Institute, founded in 2021, focuses on manufacturing chemical raw materials and products, with a registered capital of 100 million RMB [2] - This institute has invested in 4 enterprises and participated in 2499 bidding projects, holding 16 trademark records and 1838 patent records [2] Patent Details - The patent application CN121045692A, filed on May 2024, involves a thermoplastic elastomer composition that includes ethylene-propylene rubber and polypropylene, highlighting a low dosage of crosslinking agents and excellent overall performance [1] - The composition specifies 30-80 parts by weight of ethylene-propylene rubber, 10-50 parts by weight of polypropylene, 0.1-1 parts by weight of crosslinking agents, and 0.5-6 parts by weight of co-crosslinking agents [1] - The ethylene-propylene rubber contains a diene monomer with 5-vinyl-2-norbornene, showcasing innovation in polymer technology [1]