Latest News: Chenhua announced at noon on July 25 that the company recently obtained an invention patent issued by the State Intellectual Property Office, the name of the invention is a phthalic anhydride diisopropanolamide and its preparation Method and phthalic anhydride diisopropanolamide polyurethane foam and preparation method thereof.

The announcement shows that the use of phthalic anhydride diisopropanolamide as a partial substitute for 4410A polyether as a white material can reduce the cost of polyurethane foam, improve the quality of polyurethane foam, and the obtained polyurethane foam material has higher dimensional stability. Improves the strength and chemical resistance of polyurethane foams.