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.
