On April 21, Hongchang Electronics issued an announcement that Zhuhai Hongchang Electronic Materials Co., Ltd., a wholly-owned subsidiary of the company, recently received an invention patent certificate issued by the State Intellectual Property Office, which is named "Phosphorus bisphenol polymer and its preparation method and application".
It is reported that the patent was filed in June 2021, the date of the authorization announcement is April 19, 2022, and the patent number is ZL202110630018.X.
According to the summary of the celestial eye check, the present invention provides a phosphorus bisphenol polymer and preparation method and application thereof, involving the field of polymer material technology. The structure of the phosphorus bisphenol polymer of the present invention is shown in formula I or II, which is obtained by reacting benzophosphonyl dichlorohydro or dichlorophosphate with a tetramethylbisphenol compound. The phosphorus phenol polymer phosphorus content of up to 5%, easy to add in the resin solvent modulation, the production of electronic plastics have good flame retardancy and heat resistance, the production of the plate has high tear strength, high glass transition temperature, electronic plate hardness and other advantages.
Hongchang Electronics said that the invention patent acquisition is the embodiment and extension of the company's important core technology, and the acquisition of this patent will not have a significant impact on the company's recent operations, but it is conducive to further improving the layout of the company's intellectual property system, thereby enhancing the company's core competitiveness.
(Proofreading/Andy)