A procedure to provide permanent adherence to letters or signs for indications or propaganda (Machine-translation by Google Translate, not legally binding)

摘要

A method for providing permanent adhesion to letters or signs for indications or advertising, which essentially consists of arranging on the back face of the element or sign, formed from paper, cardboard or cardboard, one or more uniform layers of a solution, suspension or mixture based on thermoplastic synthetic resin, polystyrene type, in a proportion of 10 to 40% of this resin, with its plasticizers and solvents, applying this layer or layers by contact, cylinders or aerographically, and then proceeding to a drying in suitable furnace to leave the resin mixture in a semi-dry intermediate state invariable, resulting in permanent adherent power, completely adhered inseparably to the supporting paper or cardboard and instead capable of adhering on any other surface without leaving the same surface, or be able to stick and detach indefinitely. (Machine-translation by Google Translate, not legally binding)