POLYETHER BLOCK COPOLYMERS AND COMPOSITIONS THAT CAN BE OBTAINED THEREFROM

摘要

The invention relates to polyether block copolymers of the general structure B-(A-OH)n. N is equal to or greater than 2 and the blocks A consist of polyoxypropylene units and the central block B consists of polyoxytetramethylene, polyoxyethylene, polybutadiene, polyisoprene, polyacrylate, polymethacrylate, polyamide, polyurethane, or polyester units. Said polyether block copolymers are suitable for producing compositions serving as the basis for preparations for use as single-component moisture-curing or two-component adhesive or sealing agents, for assembly adhesion, for surface adhesion and/or coating, as a reactive melt adhesive, or as a laminating adhesive.