Shiming Technology Applies for Polymer Dispersant-Related Patents, Polymer Dispersant Optimized Structure Achieves Ultra-Stable Pigment Dispersion

March 22 News: According to the State Intellectual Property Office, Suzhou Shiming Technology Co., Ltd. has applied for a patent titled “A High-Polymer Dispersant, Preparation Method, Pigment Paste, and UV Curing Composition.” The application publication number is CN121699075A, the application number is CN202610132042.3, the publication date is March 20, 2026, and the application date is January 30, 2026. Inventors include Du Changsen, Liang Xinyu, Mei Chengguo, and Jia Manman. The patent agency is Suzhou Guocheng Patent Agency Co., Ltd., with patent agent Li Xiaoye. The classification codes are C08F283/06, C08F220/14, C08F220/54, C08F220/18, C09D17/00, C09D163/10.

Patent Abstract: The invention discloses a high-polymer dispersant, preparation method, pigment paste, and UV curing composition. It features a ternary copolymer formed by controlled free radical polymerization of structural units A, B, and C, where: unit A is derived from (meth)acrylate esters; unit B is derived from polyethylene glycol (meth)acrylate; and unit C is derived from N-acryloyl carbazole monomers. The high-polymer dispersant aims to overcome the defect of excessive flexibility in the anchoring groups of existing carbazole dispersants. By using an optimized N-acryloyl carbazole monomer and a ternary copolymer architecture, it achieves stronger and more durable anchoring to pigment surfaces, solving flocculation issues and enabling ultra-stable dispersion.

Shiming Technology was founded on December 11, 2001, and listed on the Shenzhen Stock Exchange on July 5, 2016. Its registered and office address is in Kunshan, Jiangsu Province. The company is a leading enterprise in China’s nanomaterial coloring field, with core products including nanomaterial pigments, and possesses strong R&D capabilities.

Shiming Technology’s main business includes R&D, production, and sales of nanomaterial pigments, functional nanodispersions, special additives, electronic chemicals, and intelligent color matching systems. It belongs to the basic chemical industry—chemical products—coatings and inks sector, and is part of concept sectors such as Sci-Tech Innovation Enterprises with equal rights, Yangtze River Delta integration, and small-cap stocks.

In 2025, Shiming Technology achieved revenue of 718 million yuan, ranking first in the industry (out of 1). Its main business revenue breakdown is: coatings at 540 million yuan (75.13%), fibers at 167 million yuan (23.22%), optoelectronics at 6.1 million yuan (0.85%), and other income at 5.74 million yuan (0.80%). Net profit was 16.84 million yuan, also ranking first in the industry, with industry averages and medians aligned.

Recent patent applications by Suzhou Shiming Technology Co., Ltd. are as follows:

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