Production of storable polyurethane compositions

摘要

1,133,314. Polyurethane coatings. FARBENFABRIKEN BAYER A.G. 1 March, 1966 [17 March, 1965], No. 8952/66. Headings B2E and B2K. [Also in Division C3] Storable, thermosetting polyurethane compositions prepared in the absence of solvents and using solid uretdione diisocyanate and chain extender, at least 80% of which has a grain size of 30 Á, are used as coatings for fabrics, for making sheet-like materials, tarpaulins and hoses. The compositions may include plasticisers, fillers, colouring matter, and organic lead salts, e.g. the lead salt of phenylethyldithiocarbamic acid or of 3-mercapto-1, 2,4-triazole as curing accelerators. In Example 1 a polyester fabric was used, and in Example 2 a polyamide fabric.