Polyurethane urea solutions

摘要

This invention relates to solutions of polyurethaneureas in gamma-butyrolactone or mixtures of gamma-butyrolactone with toxicologically acceptable organic solvents. A process for coating substrates using these polyurethaneurea solutions, and substrates coated by said process are also provided. The substrates coated according to the invention are preferably textile products or leather, but materials such as wood or concrete can also be coated according to the invention.