Composition in order to improve the adhesion to rubber of textile materials, a process for the implementation of laidte composition and the products thus rendered adhesive

摘要

An aqueous dispersion comprises at least 1% by weight of an addition product of a polyisocyanate and a lactam, at least 0.2% by weight of a dispersing agent, and at least 1% by weight of a latex of natural or synthetic rubber. The preferred dispersing agents are methyl cellulose and carboxymethyl cellulose. The preferred rubber is a copolymer of butadiene, styrene, and vinyl pyridine.ALSO:Textile materials made of glass or synthetic linear polyester are made more adhesive to rubber by treatment with an aqueous dispersion comprising at least 1% by weight of an addition product of a polyisocyanate and a lactam, at least 0.2% by weight of a dispersing agent, and at least 1% by weight of a latex of natural or synthetic rubber. The preferred dispersing agents are methyl cellulose and carboxymethyl cellulose. The preferred rubber latex is of a copolymer of butadiene, styrene, and vinyl pyridine. After coating with the composition of the invention and drying, the glass or polyester may be coated with a conventional aqueous phenol-aldehyde-latex and redried.