联欣环保申请含聚醚的二氧化碳基聚碳酸酯多元醇专利，改进聚氨酯材料的低温脆性

Core Viewpoint - Shandong Lianxin Environmental Protection Technology Co., Ltd. has applied for a patent for "Polycarbonate Polyols Based on Carbon Dioxide Containing Polyethers," indicating a focus on innovative materials in the polyurethane sector [1] Group 1: Patent Application Details - The patent application was published under CN121319341A with a filing date of July 2024 [1] - The patent abstract describes the provision of carbon dioxide-based polycarbonate-polyester-polyether block copolyols, star-shaped carbon dioxide-based polycarbonate-polyester-polyether copolyols, and low molecular weight star-shaped carbon dioxide-based polycarbonate-polyether copolyols [1] Group 2: Material Properties and Applications - The three types of polyols can be used to prepare polyurethane elastomers, soft foams, and hard foams by adjusting specific polyether content, segment distribution, and molecular weight [1] - The innovation aims to enhance the elasticity of polyurethane materials while improving their low-temperature brittleness [1]