Hoechst Celanese Corporation

Celanese Gmbh

Helen A Kravas

Gunilla E Gillberg-LaForce

Gunilla E Gillberg-La Force

Gunilla E Gillberg-LaFore

A spin finish composition is disclosed which contains an associative thickener which does not affect the initial viscosity of the spin finish composition but which causes a substantial increase in viscosity as water contained therein decreases from its initial level to about 70%, and which effects no substantial change in viscosity of the composition as the water contained therein decreases from 40 to 0%. By virtue of this behavior, a spin finish composition results which can be improved in terms of spreadability on the yarns, package build, spin line coherence, the number of broken filaments and the tackiness of the snow formed on the texturings disks. Additionally, variations in the environment in which spin finish is applied e.g., temperature and humidity, do not substantially affect its performance.

Viscosity regulators for water-based spin finishes

A spin finish composition is disclosed which contains an associative thickener which does not significantly affect the initial viscosity of the spin finish composition but which causes a substantial increase in viscosity as water contained therein decreases from its initial level to about 70%, and which effects no substantial change in viscosity of the composition as the water contained therein decreases from 40 to 0%. By virtue of this behavior, a spin finish composition results which can be improved in terms of spreadability on the yarns, package build, spin line coherence, the number of broken filaments and the tackiness of the snow formed on the texturings disks. Additionally, variations in the evnironment in which spin finish is applied e.g., temperature and humidity, do not substsantially affect its performance.

This invention provides flow-regulated adhesive latex formulations which exhibit unique shear-thinning properties for coating of substrates such as tire cord. The essential components of an invention aqueous adhesive composition for textile-rubber bonding consist of (1) an associative thickener, (2) a phenol-aldehyde resin; and (3) a latex of curable elastomer.

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Chatham, NJ, United States of America

Helen A Kravas