BigPatents India

Drawn polyester yarn of enhanced strength and improved adhesion properties for reinforcement of elastic structures, such as tires, conveyor belts and the like is obtained on treatment, prior to drawing, with a lowwater fiber finish comprising an adhesion-promoting substance comprising a halogenated polyether containing at least one 2-halomethyloxyethylene unit and a 2,3-dihydroxypropyl end group.