According to the information from Financial 界 (Financial World) on June 10, 2025, the National Intellectual Property Administration showed that Xinzhongjia (Guangzhou) Technology Co., Ltd. has applied for a patent titled "An Oxygen - Permeable Silicone Hydrogel Material for Contact Lenses and Its Preparation Method" (Public Number: CN120118253A), with the application date being March 2025.
The patent abstract indicates that the invention relates to the technical field of hydrogel materials and discloses an oxygen - permeable silicone hydrogel material for contact lenses and its preparation method. The invention uses ethylene glycol diglycidyl ether and bis(2 - chloroethyl)amine hydrochloride to undergo a ring - opening reaction to obtain Intermediate 1. Then, Intermediate 1 undergoes substitution and hydrolysis reactions with diethyl iminodiacetate to obtain Intermediate 2. The tertiary amine structure contained in Intermediate 2 is used for quaternization reaction with allyl chloride to obtain polyene quaternary ammonium salt. Finally, it is polymerized with hydroxyethyl methacrylate, γ - (methacryloyloxy)propyl trimethoxy silane, and vinyl - terminated dimethyl polysiloxane, then placed in a contact lens half - mold for reaction, demolded, and the oxygen - permeable silicone hydrogel material is obtained. The hydrogel material prepared by the invention has good hydrophilic and oxygen - permeable effects and can be widely used in contact lenses.
Tianyancha data shows that Xinzhongjia (Guangzhou) Technology Co., Ltd., established in 2024 and located in Guangzhou, is an enterprise mainly engaged in science and technology promotion and application services. The registered capital of the enterprise is 8.26 million RMB. Through big data analysis by Tianyancha, Xinzhongjia (Guangzhou) Technology Co., Ltd. has invested in 1 enterprise externally and has 1 patent information.
This article is sourced from Financial 界 (Financial World).