According to the Tianyancha App, on May 23, 2025, the patent for "Side-Chain Amino Silicone Oil and Its Preparation Method" officially entered the publication stage. The applicant is Shandong Dongyue Organosilicon Material Co., Ltd., and this patent in the silicone oil technology field relates to applications in fabric finishing. Patent information shows that the side-chain amino silicone oil prepared by this method exhibits more excellent fabric finishing effects compared to amino silicone oils prepared by traditional methods. The inventors are Liu Lei, Yi Gang, Liu Hailong, Li Ping, Wang Dan, Yan Jieshan, and Zhang Yuehong.

"This invention belongs to the technical field of silicone oils, specifically relating to side-chain amino silicone oil and its preparation method. The side-chain amino silicone oil is prepared through in-situ alcohol elimination reaction of hydroxyl groups on the side chains of siloxanes, with its structural feature being that amino groups are connected to the siloxane main chain via C-Si-O bonds. The preparation method involves adding side-hydroxyl silicone oil and monoethoxy N-substituted silane coupling agent into a reaction vessel at room temperature under a nitrogen atmosphere; ethanol is removed under vacuum to obtain the product. The side-chain amino silicone oil prepared by the method of this invention has controllable viscosity and amine value, requires no heating or catalyst during the reaction process, has a short reaction time, and produces no low-boiling siloxane cyclic compounds, significantly optimizing the production process."