LIQUID-APPLIED WATERPROOFING MEMBRANE FOR ROOFS COMPRISING A LONG-CHAIN ALDIMINE

摘要

The present invention describes a one part moisture curable liquid coated waterproof film comprising a polyurethane polymer, a long chain aldimine, and oxazolidine and at least one curing agent which is an aldimine other than the long chain aldimine. The membrane has a low viscosity and good storage stability at low solvent content, and cures rapidly to form a solid elastic material. The membrane is particularly suitable for roofing applications while retaining high strength, high elongation and good durability under outdoor climatic conditions over a wide temperature range.