| Patent application number | Description | Published |
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| 20100047571 | Process of Making Bicomponent Fiber - Bicomponent fibers, methods of forming bicomponent fibers and articles formed from bicomponent fibers are described herein. Tile bicomponent fibers generally include a sheath component and a core component, wherein the sheath component consists essentially of a first metallocene polypropylene and the core component consists essentially of a second metallocene polypropylene. | 02-25-2010 |
| 20100087602 | Long chain branched polypropylene for cast film applications - A method comprising contacting a polypropylene, an acrylate-containing compound, and an initiator to form a composition, and reactive extruding the composition to form a polymer blend. A method comprising contacting a polypropylene, a multi-functional acrylate monomer, and an initiator to form a composition, reactive extruding the composition to form a reactive extruded composition, and forming the reactive extruded composition into a film wherein the reactive extruded composition has a melt flow rate that is reduced by equal to or greater than 5% when compared to neat polypropylene. | 04-08-2010 |
| 20110059668 | Fibers and Nonwovens with Improved Bonding Properties - The present invention relates to fibers, in particular to as-spun fibers, having an improved bonding performance. In particular, the present invention relates to as-spun fibers comprising a metallocene random copolymer of propylene and one or more comonomers. The present invention further relates to nonwovens comprising such fibers and to a process for producing such fibers and nonwovens. The fibers and nonwovens of the present invention are characterized by a wider bonding window as the prior art fibers and nonwovens. | 03-10-2011 |
| 20110081817 | Fibers and Nonwovens with Improved Mechanical Properties - The present invention relates to fibers, particularly to as-spun fibers, having improved properties, in particular improved mechanical properties. In particular, the present invention relates to fibers comprising a metallocene polypropylene having a broader molecular weight distribution. The present invention further relates to nonwovens comprising such fibers and to a process for producing such fibers and nonwovens. The fibers and the nonwoven of the present invention are characterized by improved properties, in particular improved mechanical properties, when compared to the prior art fibers and nonwovens. | 04-07-2011 |
| 20110081818 | Fibers and Nonwovens with Improved Mechanical and Bonding Properties - The present invention relates to fibers, particularly to as-spun fibers, having improved properties, in particular improved bonding performance and mechanical properties. In particular, the present invention relates to fibers comprising a metallocene random copolymer of propylene and one or more comonomers, said metallocene random copolymer having a broader molecular weight distribution. The present invention further relates to nonwovens comprising such fibers and to a process for producing such fibers and nonwovens. The fibers and the nonwovens of the present invention are characterized by improved properties, in particular improved bonding performance and mechanical properties, when compared to the prior art fibers and nonwovens. | 04-07-2011 |
| Patent application number | Description | Published |
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| 20080280093 | HOMOGENOUSLY BRANCHED ETHYLENE POLYMER CARPET BACKSIZING COMPOSITIONS - The present invention pertains to carpet and methods of making carpet. In one aspect, the carpet includes (a) a primary backing which has a face and a back surface, (b) a plurality of fibers attached to the primary backing and extending from the face of the primary backing and exposed at the back surface of the primary backing, (c) an adhesive backing, (d) an optional secondary backing adjacent to the adhesive backing, and (e) at least one homogeneously branched ethylene polymer. The method includes extrusion coating at least one homogeneously branched ethylene polymer onto the back surface of a primary backing to provide an adhesive backing. The method can include additional steps or procedures, either separately or in various combinations. Additional steps and procedures include washing or scouring the primary backing and fibers prior to the extrusion step, and utilizing implosion agents. The preferred homogeneously branched ethylene polymer is a substantially linear ethylene polymer. The constructions and methods described herein are particularly suited for making tufted, broad-loom carpet having improved abrasion resistance. | 11-13-2008 |
| 20090149605 | Heterophasic propylene based polymers for forming fiber - Fibers and articles formed therefrom are described herein. The fibers generally include a first polymer including a first propylene based impact copolymer and a second propylene based polymer. | 06-11-2009 |
| 20100015331 | Hot melt adhesive compositions and methods of making and using same - A method comprising reactively extruding a polyolefin, an acrylate containing compound, and an initiator to form a polyolefin/polyacrylate blend, and applying the blend in a melted form to one or more substrates. A method comprising extruding a metallocene ethylene-propylene random copolymer to form a melt, wherein the copolymer has a melt flow rate of from 0.5 g/10 min. to 2000 g/10 min., and applying the melt to one or more substrates. A method comprising reactively extruding a metallocene ethylene-propylene random copolymer, an acrylate containing compound, and a peroxide to form a polyolefin/polyacrylate blend, wherein the blend has a melt flow rate of greater than 100 g/10 min., and applying the blend in a melted form to one or more substrates. | 01-21-2010 |
