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Patents in the hot melt adhesive industry are emerging frequently, and innovative achievements are constantly emerging

May 6, 2025

Recently, the National Intellectual Property Administration has disclosed a number of patents related to hot melt adhesives, covering key areas such as production control, cooling equipment, nozzle dust prevention, and material formulas, fully demonstrating the development trend of enterprises in the industry actively innovating and promoting technological progress.
The patent "A Production Control Method and System for Hot Melt Adhesive" (Publication No. CN119871840A) applied for by Anhui Boer Technology Co., Ltd. is particularly eye-catching. This invention introduces automated detection technology to monitor the quality and uniformity in real time during the melting and stirring of materials, effectively avoiding excessive or insufficient stirring, significantly shortening the mixing time, and greatly improving production efficiency. This innovative breakthrough is expected to change the traditional production mode and bring new opportunities for the large-scale production of hot melt adhesives.
Meanwhile, Foshan Benjia New Materials Technology Co., Ltd. has obtained the patent for "A Double-layer Water Tank for Cooling Hot Melt Adhesive" (Authorization Announcement No. CN 222792566U). Its innovative S-shaped drainage trough and spray device, which use water cooling to accelerate the cooling of hot melt adhesives and enhance the cooling efficiency, provide an efficient solution for the key cooling links in the hot melt adhesive production process and help improve the stability of product quality.
In terms of the optimization of application-end equipment, the patent of Suzhou Bolun Hot Melt Adhesive Machinery Co., LTD. (Authorization Announcement No. CN222805473U) for "A Dust-proof Structure of the Spray Nozzle of a Hot melt Adhesive Machine" is quite remarkable. This structure controls the opening and closing of the protective cover by pulling the block and the elastic strip, preventing dust and impurities from entering the spray port and ensuring the glue spraying effect. It is of great significance for improving the application experience of hot melt glue in actual usage scenarios.
The research and development of materials has also achieved fruitful results. Guangdong Weiwang New Materials Co., Ltd. has obtained a patent for "A Highly Polar Hot Melt Adhesive and Its Preparation Method" (Authorization Announcement No. CN119081584B). Although the detailed performance advantages have not been disclosed yet, the highly polar hot melt adhesive is expected to achieve better bonding effects in specific fields and expand the application boundaries of hot melt adhesives.
In addition, the patent "Butyl Hot Melt Adhesive for Thermal Conductive and Water-Blocking Photovoltaic Modules and Its Preparation Method" (Publication No. CN119899604A) applied for by Hubei Xingrui Silicon Materials Co., Ltd. effectively addresses issues such as heat accumulation, material aging, and leakage damage to photovoltaic modules in harsh environments. Provide key material support for the development of the clean energy industry.
Many enterprises have been continuously investing in research and development in the field of hot melt adhesives, promoting the development of the industry in all aspects, from the innovation of production processes to the upgrading of product performance. These patent achievements will not only help enterprises enhance their market competitiveness, but also bring more high-quality options to a wide range of downstream application fields such as packaging, electronics, and construction, leading the hot melt adhesive industry to a new stage of development.