The pylene tetramethylbenzene industry is highly concentrated and its production capacity is gradually expanding.

Methylene is currently the only tetramethylbenzene with industrial use among polytoluenes. Methylene is an intermediate product in the production of high-temperature resins, special coatings, plasticizers and curing agents. Because its methyl group is very active, has high selectivity and high reaction speed, it has attracted more and more attention in industry. In recent years, although…