What Polyurethane [PU] ?
Polyurethane [PU] chemistry was first studied by German chemist, Friedrich Bayer in 1937.
Polyurethanes [PU], also known as polycarbamates, belong to a larger class of compounds called polymers. Polymers are macro-molecules made up of smaller, repeating units known as monomers. Generally, they consist of a primary long-chain backbone molecule with attached side groups. Polyurethanes [PU] are characterized by carbamate groups (NHCO 2) in their molecular backbone. These groups, called urethane, are produced through a chemical reaction between a diisocyanate and a polyol.
Polyurethanes [PU] are some of the most versatile polymers. They are used in elastomers, surface coatings, adhesives, foams, sealants, etc.
Types of Polyurethane [PU]s
