近日，国家知识产权局信息显示，山东一诺威新材料有限公司申请一项名为"多元协同阻燃生物基 聚氨酯填缝剂及其制备方法"的专利，公开号CN121343539A，申请日期为2025年12月。 专利摘要显示，本发明属于聚氨酯胶粘剂技术领域，具体涉及多元协同阻燃生物基聚氨酯填缝剂及 其制备方法。包括以下重量份数的原料：生物基多元醇Ⅰ：50‑60份；生物基多元醇Ⅱ：40‑50份；匀泡 剂：15‑18份；填料：259‑279份；催化剂：5‑7份；抛射剂：140‑170份；改性异氰酸酯：37‑40份；多亚 甲基多苯基异氰酸酯：148‑160份；通过将N、P、B、S等阻燃元素协同引入聚氨酯填缝剂分子结构中， 多元作用下显著提升了材料的阻燃性能与力学性能；此外，以生物基多元醇作为制备聚氨酯填缝剂的主 要原料，不仅有利于提升材料的生物降解性，还能有效降低碳排放，减少对环境的污染。 ...

Group 1 - The core achievement of Yinuowei's subsidiary, Shanghai Dongda Chemical Co., Ltd., is the selection of its specialty surfactant polyether as a champion product for the manufacturing industry in Shanghai for 2025, highlighting the company's technological innovation and market leadership [1] - The award reflects the rigorous selection process based on recommendations from district levels, expert evaluations, and public announcements, showcasing the high recognition of leading enterprises in niche sectors by the Shanghai government [1] - Yinuowei has established itself as a national high-tech enterprise and has received multiple accolades, including being a key high-tech enterprise under the National Torch Program and a national-level champion demonstration enterprise [1] Group 2 - Yinuowei has developed a diverse product matrix including cast polyurethane elastomers, thermoplastic polyurethane elastomers, microporous polyurethane elastomers, polyurethane flooring materials, waterproofing agents, polyester polyols, polyether polyols, polyurethane composite polyethers, and high-end surfactants [2] - The company's products are widely applied across various industries such as light industry, construction, machinery, textiles, metallurgy, transportation, water conservancy, printing, medical devices, petrochemicals, mining, and sports, with sales extending throughout China and exports to Southeast Asia, the Middle East, Europe, and the United States [2]

Group 1 - The core transaction on November 28 involved a block trade of 100,000 shares of Yinuowei at a transaction value of 1.042 million yuan, with a transaction price of 10.42 yuan, representing a discount of 29.78% compared to the closing price of the day [2][3] - In the past month, Yinuowei has recorded a total of 5 block trades, with a cumulative transaction value of 5.8007 million yuan [3] - The closing price of Yinuowei on the day of the transaction was 14.84 yuan, reflecting a decrease of 0.27%, with a daily turnover rate of 0.49% and a total transaction amount of 12.3383 million yuan [3] Group 2 - Yinuowei, officially known as Shandong Yinuowei Polyurethane Co., Ltd., was established on December 3, 2003, with a registered capital of 2.9113 billion yuan [3]

Core Points - A block trade occurred for the company Yinuowei (stock code: 920261) on November 28, 2025, at a closing price of 14.84 yuan per share [1] - The transaction price was 10.42 yuan per share, with a total volume of 100,000 shares, resulting in a transaction amount of 1.042 million yuan, reflecting a discount of 29.78% [1] Company Summary - The buying brokerage was Zhongtai Securities Co., Ltd., located in Zibo, while the selling brokerage was Dongwu Securities Co., Ltd., based in Jinan [1]

Summary of Key Points Core Viewpoint - A significant block trade occurred for Yinuowei (920261) on November 19, with a transaction volume of 100,000 shares and a transaction value of 1.088 million yuan, reflecting a discount of 29.76% compared to the closing price of the day [2] Group 1: Block Trade Details - The block trade was executed at a price of 10.88 yuan per share [2] - The buyer was Zhongtai Securities Co., Ltd., located at Zibo Zhongrun Avenue, while the seller was Dongwu Securities Co., Ltd., located at Jinan Haiyou Road [2] - In the past month, Yinuowei has recorded a total of 4 block trades, amounting to 4.7587 million yuan [2] Group 2: Stock Performance - Yinuowei's closing price on the day of the block trade was 15.49 yuan, with a decrease of 0.32% [2] - The stock's turnover rate for the day was 1.18%, with a total transaction amount of 31.229 million yuan [2] - Over the past five days, the stock has experienced a cumulative decline of 4.79% [2] Group 3: Company Background - Shandong Yinuowei Polyurethane Co., Ltd. was established on December 3, 2003, with a registered capital of 2.9113 billion yuan [2]

Group 1 - The core event involves a block trade of Yinuowei (stock code: 920261) on the Beijing Stock Exchange, with a closing price of 17.07 yuan per share [1] - The block trade was executed at a price of 11.39 yuan per share, representing a discount of 33.27% from the closing price [1] - The transaction involved 130,000 shares, amounting to a total value of 1.4807 million yuan [1] Group 2 - The buying brokerage was Guotai Junan Securities Co., Ltd., specifically the Shandong Zibo Hantai Dongyue Road branch [1] - The selling brokerage was Dongwu Securities Co., Ltd., specifically the Jinan Haiyou Road branch [1]

Core Viewpoint - A significant block trade occurred for Yinuowei (920261) on November 13, with a transaction volume of 130,000 shares and a transaction value of 1.4807 million yuan, reflecting a discount of 33.27% compared to the closing price of the day [2] Group 1: Block Trade Details - The block trade price was 11.39 yuan, which is substantially lower than the closing price of 17.07 yuan [2] - The buyer was Guotai Junan Securities Co., Ltd., Shandong Zibo Hantai Dongyue Road branch, while the seller was Dongwu Securities Co., Ltd., Jinan Haiyou Road branch [2] - In the past month, Yinuowei has recorded a total of three block trades, amounting to 3.6707 million yuan [2] Group 2: Stock Performance - Yinuowei's stock closed at 17.07 yuan on the day of the block trade, marking an increase of 4.92% [2] - The stock's turnover rate for the day was 4.27%, with a total transaction value of 123 million yuan [2] - Over the past five days, the stock has appreciated by 6.22% [2] Group 3: Company Background - Shandong Yinuowei Polyurethane Co., Ltd. was established on December 3, 2003, with a registered capital of 2.9113 billion yuan [2]

Core Viewpoint - The company, Yinuowei, has established itself as a leading player in the polyurethane industry, leveraging its technological advancements and strategic location in Zibo, Shandong Province, to enhance its competitive edge and market presence [1][2][3]. Group 1: Development Advantages - Zibo is recognized as a significant chemical hub in China, with a collaborative development of petroleum, fine chemicals, and new chemical materials, leading to the emergence of several leading enterprises [1]. - Yinuowei has achieved numerous accolades, including being a national high-tech enterprise and a national manufacturing single champion demonstration enterprise, showcasing its strong technological capabilities and industry recognition [1]. - The company has developed a diverse product matrix, including various types of polyurethane elastomers and high-end surfactants, with applications across multiple industries such as construction, textiles, and healthcare [1]. Group 2: Competitive Strengths - Yinuowei benefits from its proximity to major chemical enterprises, allowing for reduced raw material costs and efficient transportation methods, which enhance its competitive advantage [2]. - The company has positioned itself against world-class competitors, continuously improving its product quality and technological standards, which has solidified its market position [2]. - Yinuowei's polyurethane prepolymer is recognized as a national manufacturing single champion product, holding the largest market share globally, supported by high production efficiency and automation [2][4]. Group 3: Financial Performance - In the first three quarters of the year, Yinuowei reported revenue of 5.577 billion yuan, a year-on-year increase of 10.04%, and a net profit attributable to shareholders of 164 million yuan, reflecting a growth of 46.12% [4]. Group 4: Innovation and R&D - The company emphasizes technological innovation as a core competitive strategy, focusing on high-value-added products and aligning its R&D efforts with market demands [5]. - Yinuowei is investing in new product development and enhancing its R&D capabilities, with over 50% of its workforce holding bachelor's degrees or higher [5][6]. - The company is establishing various application laboratories to strengthen its product offerings and benchmark against leading international firms [6]. Group 5: Market Outlook - The polyurethane industry is expected to grow significantly due to its versatile applications, particularly in emerging sectors like new energy vehicles and green buildings [7]. - Yinuowei aims to capitalize on market opportunities and enhance its competitive position by focusing on safety and environmental responsibilities while driving technological upgrades [7]. - The company is actively expanding its international market presence, with established operations in Southeast Asia, the Middle East, and Europe, aiming to increase its overseas sales and internationalization efforts [8].

Group 1 - The core transaction of Yinuowei (920261) on November 7 involved a block trade of 100,000 shares, amounting to 1.125 million yuan, with a transaction price of 11.25 yuan, representing a discount of 31.74% compared to the closing price of the day [2][3] - In the past month, Yinuowei has recorded a total of 2 block trades, with a cumulative transaction amount of 2.19 million yuan [3] - The closing price of Yinuowei on the day of the report was 16.48 yuan, reflecting an increase of 2.55%, with a trading volume of 61.4886 million yuan and a 5-day cumulative decline of 2.83% [3] Group 2 - Yinuowei, officially known as Shandong Yinuowei Polyurethane Co., Ltd., was established on December 3, 2003, with a registered capital of 2.9113 billion yuan [3]

Group 1 - The core event involves a block trade of Yinuowei (stock code: 920261) on the Beijing Stock Exchange, with a closing price of 16.48 yuan per share [1] - The block trade occurred on November 7, 2025, at a transaction price of 11.25 yuan per share, representing a discount of 31.74% from the closing price [1] - The total volume of the transaction was 100,000 shares, amounting to 1.125 million yuan [1] Group 2 - The buying brokerage was Zhongtai Securities Co., Ltd., located in Zibo, while the selling brokerage was Dongwu Securities Co., Ltd., based in Jinan [1]