Solid dispersion for chain extension chain-extended polyurethane using the same and method for preparing the chain-extended polyurethane

摘要

The present invention relates to a solid dispersion for chain extension, a method for manufacturing a chain-extended polyurethane and a chain-extended polyurethane using the same, and more specifically, to disperse an isotropic and/or anisotropic material derived from an inorganic substance or an organic substance. By dispersing it in a dispersion medium such as polyol and saccharide, which is solid at room temperature, it is easy to store and use, reduces transportation costs, and can prevent or improve agglomeration and sedimentation occurring during product storage, A method for manufacturing a solid dispersion for chain extension, a chain-extended polyurethane and a chain-extended polyurethane using the same, which can improve work efficiency, reduce process costs, and improve strength when applied to polyurethane. will be.