Occupational contact dermatitis caused by polyurethane foam: 6 cases.

Polyurethane resins, developed by the addition of diisocyanates and polyol, have many industrial applications, especially as filling foam (automobile, building and furniture industries). The diisocyanates of which these foams are composed can be irritating and sensitizing during their manufacturing process and use. They are particularly responsible for respiratory manifestations, and less frequently for urticaria or allergic contact dermatitis.