Low -shrinkage hybrid yarns production thereof and use thereof
AssigneeHoechst Trevira GmbH & Co. KG
InventorJosef Geirhos
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Abstract
The low-shrinkage hybrid yarns comprise reinforcing filaments and matrix filaments composed of thermoplastic polymers having a lower melting point than the melting or decomposition point of the reinforcing filaments. The yarns are characterized by a 160.degree. C. hot air shrinkage of not more than 2% and a 200.degree. C. hot air shrinkage of not more than 5%. These yarns are useful for producing composites.
Claims11
A hybrid yarn comprising reinforcing filaments and matrix filaments wherein the matrix filaments are composed of thermoplastic polymers having a lower melting point than the melting or decomposition point of the reinforcing filaments, and the yarn having a hot air shrinkage of not more than 5% at an air temperature of 200.degree. C. measured under a load of 0.0004 cN/dtex.
Dependencies are inferred from the claim text.