Sou Hu Cai Jing·2025-08-09 04:52Group 1 - The core viewpoint of the article highlights that Sinopec has applied for a patent for a new type of polylactic acid foam material, which significantly reduces density compared to non-foamed materials, enhancing yield and thermal insulation properties, thus broadening its application scenarios and market potential [1][3] - The patent application, titled "Polylactic Acid Foam Material and Its Preparation Method and Application," was filed on February 2024, indicating ongoing innovation in polymer materials technology [1] - Sinopec, established in 2000, is primarily engaged in oil and gas extraction, with a registered capital of approximately 12.17 billion RMB and has invested in 263 companies, participated in 5000 bidding projects, and holds 5000 patent records [1] Group 2 - Sinopec Shanghai Petrochemical Research Institute, founded in 2022, focuses on technology promotion and application services, with a registered capital of 498 million RMB, and has invested in 2 companies and participated in 655 bidding projects [2] - The research institute holds 731 patent records and has 123 administrative licenses, indicating a strong emphasis on innovation and regulatory compliance [2]