Core Viewpoint - Shandong Yinuowei New Materials Co., Ltd. has applied for a patent for a "Multi-Element Synergistic Flame Retardant Bio-Based Polyurethane Sealant and Its Preparation Method," indicating a focus on innovative materials that enhance fire resistance and environmental sustainability [1] Group 1: Patent Details - The patent application number is CN121343539A, with an application date of December 2025 [1] - The invention pertains to the field of polyurethane adhesive technology, specifically addressing a bio-based polyurethane sealant with enhanced flame retardant properties [1] Group 2: Composition and Benefits - The sealant comprises specific weight ratios of raw materials: Bio-based polyol I (50-60 parts), Bio-based polyol II (40-50 parts), surfactant (15-18 parts), filler (259-279 parts), catalyst (5-7 parts), blowing agent (140-170 parts), modified isocyanate (37-40 parts), and multi-functional methylene diphenyl diisocyanate (148-160 parts) [1] - The incorporation of flame-retardant elements such as N, P, B, and S into the molecular structure significantly improves the flame retardant and mechanical properties of the material [1] - Utilizing bio-based polyols as the main raw material not only enhances the biodegradability of the sealant but also effectively reduces carbon emissions and minimizes environmental pollution [1]
山东一诺威申请多元协同阻燃生物基聚氨酯填缝剂专利