Tongyi Aerospace obtained the patent for thermal insulation polyurethane protective film to realize the recycling of ABS waste and HIPS waste

news on december 6, 2023, according to an announcement from the state intellectual property office, nantong tongyi aerospace technology co., ltd. obtained a patent titled “a thermal insulation polyurethane protective film and its preparation method” , authorization announcement number cn116948231b, application date is september 2023. the patent abstract shows that the present invention relates to…