IMPRESSION SUR DES SURFACES DE POLYURETHANE

摘要

1,261,506. Printing on polyurethane. B. F. GOODRICH CO. 30 Sept., 1970 [1 Oct., 1969], No. 46460/70. Heading B6C. A method of printing on a polyurethane surface comprises printing with ink on a polyurethane surface and heating at a temperature greater than about 212‹ F. to a temperature below that causing degradation of the polyurethane. The upper temperature is between 300‹ and 400‹ F. and the polyurethane may be a reaction product of a hydroxyl-terminated polyester plus an aliphatic glycol and an aromatic diisocyanurate. Instead of the polyester a polyether may be reacted with the glycol and diisocyanurate.