FIBERS AND NONWOVENS COMPRISING POLYPROPYLENE BLENDS AND MIXTURES

• Main Authors: AUTRAN, JEAN-PHILIPPE, MARIE, ARORA, KELYN, ANNE
• Format: Patent
• Language: English; French; German
• Published: 18.10.2006
• Subjects: APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBONFILAMENTS; BRAIDING; CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS,THREADS, FIBRES, BRISTLES OR RIBBONS; CHEMISTRY; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; COTTON-WOOL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS,NON-WOVEN FABRICS; KNITTING; LACE-MAKING; MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS; MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARYMATERIAL; METALLURGY; NATURAL OR ARTIFICIAL THREADS OR FIBRES; NON-WOVEN FABRICS; ORGANIC MACROMOLECULAR COMPOUNDS; SPINNING; TEXTILES; THEIR PREPARATION OR CHEMICAL WORKING-UP; TRIMMINGS; WADDING

Polypropylene materials comprising a polymeric blend, the polymeric blend comprising: (a) a first linear low density metallocene polyethylene; and (b) a second linear low density polyethylene; wherein the polypropylene material has a first turbidity half time measured under quiescent conditions, and a second turbidity half time measured at a wall shear stress of about 0.11 MPa, and having a certain ratio of the second turbidity half time to the first turbidity half time.