Wuxi Saniao New Materials has applied for a patent for molecular sieve activation powder and its preparation method to extend the curing time of adhesives, effectively slowing down the curing speed of polyurethane adhesives.

Release time:

2025-08-08

Financial News, November 13, 2024: According to information from the National Intellectual Property Administration, Wuxi Sanxiao New Materials Co., Ltd. has applied for a patent titled “A Molecular Sieve Activated Powder for Extending the Curing Time of Adhesives and Its Preparation Method,” with publication number CN 118931421 A, and an application date of October 2024.

The patent abstract states that this application pertains to the field of adhesive additives, specifically a molecular sieve activated powder for extending adhesive curing time and its preparation method. The molecular sieve activated powder for extending the curing time of adhesives comprises the following raw materials: 60–90 parts of base sieve powder, 10–25 parts of modified additives, 5–20 parts of organic acid anhydride, and 5–10 parts of polysiloxane. The molecular sieve activated powder produced according to this application can maintain excellent moisture and gas adsorption performance while while also maintaining good adhesive curing extension effects, providing more open time for adhesive use. Especially, it can effectively slow down the curing speed of polyurethane adhesives, i.e., extend the curing time required for polyurethane adhesives, making the adhesive more operable and easier to apply, with excellent market and application value.

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