SYNTHETIC LEATHER FOAM LAYER MADE FROM POLYESTER POLYOL BASED BACKBONE POLYURETHANE DISPERSION

摘要

Present application discloses a method of externally stabilized porous synthetic leather having improved peel strength comprising the following steps,:. At least one polyester polyol, optionally to prepare a pre-polymer in a solvent from a mixture comprising at least one polyol and at least one poly-isocyanate; The pre-polymer, mixing the water and the first surfactant; To form a PUD was added to the second chain extender optionally; The PUD, of one or more surfactants, and to prepare a mixture containing at least one thickener; Forming a foam of the mixture; Forming a coated fabric formed by coating the fabric of the foam mixture; Adjusting the thickness of the foam mixture is formed on the coated fabric; And. Drying the coated fabric. In addition, the present application discloses a method of improving the peel strength of the porous synthetic leather. In addition, starting the externally stabilized synthetic leather and having improved peel strength. ;