Yinuowei applied for a patent for polyurethane sole resin to make the soles resistant to low temperature and dirt.

News on November 26, 2023, according to the announcement of the State Intellectual Property Office, Shandong Yinuowei Polyurethane Co., Ltd. applied for a project called "A low-temperature and stain-resistant polyurethane sole resin and its preparation "Methods and Applications", publication number CN117106154A, application date is October 2023.

The patent abstract shows that the present invention discloses a low-temperature and stain-resistant polyurethane shoe sole resin and its preparation method and application, which belongs to the technical field of polyurethane resin. The technical solution is: composed of A component and B component, wherein: A component consists of polyester polyol, hydroxyl-terminated siloxane, polyester polymer polyol, chain extender, foaming agent, catalyst, hair It is composed of foaming agent. Component B is composed of polyester polyol, polyether polyol, hydroxyl-terminated siloxane, isocyanate and phosphoric acid. The mass ratio of component A to component B is 100:(65-95). The invention introduces a siloxane structure into the polyurethane system, so that the shoe sole has the performance of low temperature resistance and dirt resistance.