BONDING OF SHAPED ARTICLES OF POLYESTER

摘要

An improved process is described for bonding polyester shaped articles to rubber. The improvement comprises treating the polyester surface with an aqueous solution of a bis(dihydroxyphenyl methyl)phenol which results in an increased bond strength using conventional aqueous rubber latex and resorcinol formaldehyde condensate dips to bond the polyester to the rubber. The surface treatment may be effected in a separate prior process followed by a conventional bonding process using a rubber latex and a resorcinol formaldehyde condensate, or it may be effected in a single bath process together with a rubber latex and a resorcinol formaldehyde condensate.