重庆浙升科技申请可防紫外线的聚氨酯拉挤型材着色处理工艺专利

Core Viewpoint - Chongqing Zhesheng Technology Co., Ltd. has applied for a patent for a UV-resistant polyurethane pultrusion coloring treatment process, indicating innovation in the field of coloring treatment technology [1] Group 1: Patent Details - The patent, titled "A Coloring Treatment Process for UV-Resistant Polyurethane Pultrusion Profiles," was published under CN121362362A with an application date of November 2025 [1] - The invention involves a series of steps including surface cleaning, chemical activation, and the preparation of a functional slurry containing colorants, UV absorbers, and hindered amine light stabilizers [1] Group 2: Process Innovation - The process integrates coloring and UV resistance through a vacuum impregnation technique, enhancing the adhesion, color durability, and weather resistance of the coating [1] - It addresses issues found in traditional methods, such as coating peeling and inadequate protective effects [1]