CNOOC Changzhou Research Institute of Coatings and Chemicals has applied for patents related to the latent activating components of polyaspartate polyurea

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According to information from the Intellectual Property Office as of July 19, 2025, **CNOOC Changzhou Coatings and Chemicals Research Institute Co., Ltd.; CNOOC Changzhou Environmental Protection Coatings Co., Ltd.; and CNOOC Energy Development Co., Ltd. have filed a patent application titled “A polyaspartate polyurea latent activator component, synthesis method and application, as well as polyaspartate polyurea coatings.” The publication number of this patent is CN120329549A, and the application date was March 2025. The patent abstract indicates that the present invention discloses a polyaspartate polyurea latent active component, a synthesis method and applications thereof, as well as a polyaspartate polyurea coating. The latent active component of the polyaspartate polyurea according to the present invention is obtained by reacting benzophenone imine with amino-functionalized polysiloxane ； Amino-functionalized polysiloxanes are obtained by mixing hydroxyl-terminated polydimethylsiloxane, amino-containing dimethoxysilane, methylvinyldimethoxysilane, and functionalized POSS ； Functionalized POSS is prepared by the apical capping method using 4-(chloromethyl)phenyltrimethoxysilane and trichlorosilane ； When used, the latent active component of polyaspartate polyurea in this invention is mixed with polyaspartate, polyisocyanate, a photocatalyst, and lithium bromide before being applied by brushing or spraying. After exposure to visible light for 2–4 hours, the coating exhibits improved mechanical properties and better adhesion. According to Tianyancha, CNOOC Changzhou Coatings and Chemicals Research Institute Co., Ltd. was established in 1994 and is located in Changzhou. It is a company that specializes in the manufacturing of chemical raw materials and chemical products. The registered capital of the enterprise is 228.4591 million RMB. According to the big data analysis provided by Tianyancha, CNOOC Changzhou Coatings and Chemicals Research Institute Co., Ltd. has made investments in 3 companies in total, participated in 461 bidding projects. In terms of property-related information, there are 27 trademark records and 367 patent records; additionally, the company holds 21 administrative licenses. CNOOC Changzhou Environmental Protection Coatings Co., Ltd., established in 1999 and located in Changzhou, is a company primarily engaged in the manufacturing of chemical raw materials and chemical products. The registered capital of the enterprise is 243.3931 million RMB. According to the big data analysis provided by Tianyancha, CNOOC Changzhou Environmental Protection Coatings Co., Ltd. has made investments in 1 company in total, and has participated in 2,222 bidding projects. In terms of property-related information, it has 1 trademark record and 238 patent records; additionally, the company holds 38 administrative licenses. CNOOC Energy Development Co., Ltd., established in 2005 and located in Beijing, is a company that focuses on carrying out exploration-related as well as supporting activities. The registered capital of the enterprise is 10,165,104.199 million RMB. According to the big data analysis provided by Tianyancha, CNOOC Energy Development Co., Ltd. has made investments in 64 companies in total, participated in 5,000 bidding projects. In terms of property-related information, there are 56 trademark records and 3,984 patent records; additionally, the company holds 58 administrative licenses.