Drawn polyester yarn for reinforcement of elastic structures
AssigneeHoechst Trevira GmbH & Co. KG
InventorKurt-Guenter Berndt
Life of this patent
Estimating the term…
Abstract
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 water-free or a low water 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.
Claims15
Drawn polyester yarn of enhanced strength and improved adhesion properties for reinforcement of elastic structures, said yarn having applied to it prior to being drawn a fiber finish which is water-free or has a water content of below 10% by weight, based on the total weight of the fiber finish, said fiber finish comprising a base substance (A) and an adhesion-promoting substance comprising a halogenated polyether which contains at least one 2-halomethyloxyethylene unit and a 2,3dihydroxypropyl end group and which is essentially free of epoxy groups and halohydrin groups, said fiber finish optionally further comprising one or more additives selected from the group consisting of viscosity regulators, lubricants, rubber adhesion activators, surfactants and antistatic agents, and wherein said drawn polyester yarn has a tenacity of greater than 80 cN/tex.
A fiber finish composition for application to polyester yarn prior to drawing, said fiber finish being water-free or having a water content of below 10% by weight, based on the total weight of the fiber finish and comprising a base substance (A) and an adhesion-promoting substance comprising a halogenated polyether which contains at least one 2-halomethyloxyethylene unit and a 2,3-dihydroxproylene end group and which is essentially free of epoxy groups and halohydrin groups, and said fiber finish optionally further comprising one or more additives selected from the group comprising viscosity regulators, lubricants, rubber adhesion activators, surfactants and antistatic agents.
A process for producing a polyester yarn, which comprises applying to the yarn prior to drawing a fiber finish which is water-free or has a water content of below 10% by weight, based on the total weight of the fiber finish and which comprises a base substance (A) and an adhesion-promoting substance comprising a halogenated polyether which contains at least one 2-halomethyloxyethylene unit and a 2,3-dihydroxypropylene end group and which is essentially free of epoxy groups and halohydrin groups, and said fiber finish optionally further comprising one or more additives selected from the group consisting of viscosity regulators, lubricants, rubber adhesion activators, surfactants and antistatic agents.
Dependencies are inferred from the claim text.