Diisocyanates are a family of chemical intermediates used to make polyurethane products which are relied upon by many businesses and consumers throughout the world. While diisocyanates are used in many applications, they are particularly important in the transportation and construction industries.
Diisocyanates, including the specific subset of diisocyanates called aliphatic diisocyanates, have been used since the late 1940s and have been extensively studied. Aliphatic diisocyanates, such as Hexamethylene Diisocyanate (HDI), Methylene dicyclohexyl diisocyanate or Hydrogenated MDI (HMDI) and Isophorone Diisocyanate (IPDI), are often further reacted to form polyisocyanates which act as building blocks to form color-stable polyurethane coatings and elastomers. These coatings and elastomers can significantly enhance a product’s appearance, lengthen its lifespan and offer high abrasion resistance.
Aliphatic diisocyanates primarily are used in paint and surface coatings such as automotive and truck refinishing, as well as industrial, maintenance and performance coatings. For example, chemical resistant coatings made with aliphatic diisocyanates help military vehicles maintain the durability and resistance needed to withstand harsh combat environments. Coatings prepared with aliphatic diisocyanates can have excellent resistance to chemicals and abrasion as well as superior weathering characteristics, including gloss retention and resistance to yellowing and chalking.
The Aliphatic Diisocyanates Panel of the American Chemistry Council was established in 1988 and consists of the major U.S. producers of aliphatic diisocyanates. The Panel monitors regulatory and legislative actions that may affect the industry and supports scientifically sound research and advocacy on health, safety and environmental matters. The Panel is guided by the principles of Responsible Care®.