Patent application number | Description | Published |
20100233927 | Metallocene Polypropylene Fibers and Nonwovens with Improved Mechanical Properties - The present invention relates to as-spun fibers and filaments comprising a nucleated metallocene polypropylene. Said fibers and filaments are characterized by improved mechanical properties. The present invention also relates to nonwovens made with such fibers and filaments and to a process for making such fibers and filaments. | 09-16-2010 |
20110034645 | Process for the Production of a Bimodal Polypropylene Having Low Ash Content - The present invention relates to a process for making low ash propylene homo- or copolymers with improved properties, with “ash” denoting aluminium as well as residues of catalyst, cocatalyst or any additive, such as titanium (Ti) and silicium (Si) derivatives, used in the production of propylene polymers. The propylene polymers of the present invention are useful to make films, such as capacitor films, as well as fibers and nonwovens, such as for example staple fibers, spunbond nonwovens or meltblown nonwovens. | 02-10-2011 |
20110034649 | PROCESS FOR THE PRODUCTION OF A PROPYLENE POLYMER HAVING A BROAD MOLECULAR WEIGHT DISTRIBUTION AND A LOW ASH CONTENT - The present invention relates to a process for the production of propylene homo- and copolymers having a broad molecular weight distribution and a low ash content, with “ash” denoting aluminium as well as residues of catalyst, cocatalyst or any additive, such as titanium (Ti) or silicium (Si) derivatives, used in the production of propylene polymers. The propylene polymers of the present invention are useful to make films, such as capacitor films, as well as fibers and nonwovens, such as for example staple fibers, spunbond nonwovens, meltblown nonwovens. | 02-10-2011 |
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 |
20110086568 | SPUNBOND NONWOVENS MADE FROM HIGH-CRYSTALLINITY PROPYLENE POLYMER - The present invention relates to fibers comprising at least 98 wt % of a propylene polymer having, in particular, a specific molecular weight distribution M | 04-14-2011 |
20110104447 | Heterophasic Propylene Copolymer for Corrugated Sheet and Cast Film Applications - The present invention concerns heterophasic propylene copolymers, comprising a propylene homopolymer (PPH) and an ethylene-propylene rubber (EPR), having a broad molecular weight distribution and a well-defined total ethylene content and a specific ratio of the intrinsic viscosities of the ethylene-propylene rubber (EPR) and the propylene homopolymer (PPH), η | 05-05-2011 |
20110124798 | Heterophasic Propylene Copolymer with Improved Creep Behavior - The present invention concerns heterophasic propylene copolymers, comprising a propylene homopolymer (PPH) and an ethylene-propylene rubber (EPR), having a very broad molecular weight distribution, a well-defined total ethylene content and a specific intrinsic viscosities of the ethylene-propylene rubber (EPR). The invention further concerns the process to produce such heterophasic propylene copolymers. The heterophasic propylene copolymers of the present invention are particularly suited for pails, pallets, IBCs and crates. In particular, the heterophasic propylene copolymers of the present invention are characterized by an improved resistance to creep. | 05-26-2011 |
20110183568 | FIBERS AND NONWOVENS WITH INCREASED SURFACE ROUGHNESS - The present invention relates to fibers having an increased surface roughness. Further, the present invention relates to nonwovens, laminates and composites comprising such fibers. Additionally, the present invention relates to a process for producing such fibers, nonwovens, laminates and composites. | 07-28-2011 |
20110184136 | FIBRES AND NONWOVEN PREPARED FROM POLYPROPYLENE HAVING A LARGE DISPERSITY INDEX - The present invention relates to a process for the production of fibres and filaments with polypropylene having a broad polydispersity index. The present invention also relates to high elongation nonwoven prepared from such fibres and filaments. It further relates to films and laminates prepared from high elongation nonwoven. | 07-28-2011 |
20110251333 | Polypropylene Prepared with a Single-Site Catalyst and Poly(hydroxyl carboxylic acid) Blends - A resin composition comprising at least 0.1% by weight of poly(hydroxy carboxylic acid) and at least 50% by weight of polypropylene prepared with a single-site catalyst, preferably with a metallocene catalyst. | 10-13-2011 |
20120130027 | CAPS AND CLOSURES - This invention discloses caps and closures produced by injection moulding with a bimodal high density polyethylene (HDPE) resin comprising a low molecular weight, high density polyethylene fraction substantially free of comonomer and a high molecular weight, low density polyethylene fraction, having a molecular weight distribution of at least 3.5, preferably greater than 4.0, prepared in two reactors connected in series in the presence of a metallocene-containing catalyst system, wherein the metallocene comprises a bisindenyl or a bis-tetrahydrogenated-indenyl component. | 05-24-2012 |
20120242003 | PROPYLENE POLYMER WITH IMPROVED PROCESSABILITY IN THERMOFORMING - The present invention concerns a propylene polymer comprising at least two propylene polymer fractions of different melt flow index and a minor amount of at least one comonomer, said propylene polymer being further characterized by specific ranges for melt flow index, xylene solubles content and recovery compliance. Said propylene polymer is particularly suited for thermoforming. The present invention further concerns a process for producing said propylene polymer as well as its use in thermoforming. | 09-27-2012 |
20120309908 | Fibres and Nonwoven Prepared From Polypropylene Having a Large Dispersity Index - The present invention relates to a process for the production of fibres and filaments with polypropylene having a broad polydispersity index. The present invention also relates to high elongation nonwoven prepared from such fibres and filaments. It further relates to films and laminates prepared from high elongation nonwoven. | 12-06-2012 |
20130225707 | Articles Formed From Polypropylene Prepared with a Single-Site Catalyst and Poly(hydroxyl carboxylic acid) Blends - A resin composition comprising at least 0.1% by weight of poly(hydroxy carboxylic acid) and at least 50% by weight of polypropylene prepared with a single-site catalyst, preferably with a metallocene catalyst. | 08-29-2013 |
20140051315 | SPUNBOND NONWOVENS MADE FROM HIGH-CRYSTALLINITY PROPYLENE POLYMER - The present invention relates to fibers comprising at least 98 wt % of a propylene polymer having, in particular, a specific molecular weight distribution M | 02-20-2014 |
20140249264 | HIGH-FLUIDITY HETEROPHASIC PROPYLENE COPOLYMER WITH IMPROVED RIGIDITY - Heterophasic propylene copolymers can include a matrix phase and a dispersed phase. The heterophasic propylene copolymers can be characterized by good processability and good mechanical properties, particularly an improved rigidity. The heterophasic propylene copolymers can be well-suited for injection molding applications, particularly for injection molding of thin-walled articles. | 09-04-2014 |
20140371397 | HIGH-DENSITY POLYETHYLENE FOR CAPS AND CLOSURES - A high-density polyethylene (HDPE) can be adapted for the manufacture of caps and closures. The caps and closures can be used as screw-on caps for carbonated or still drinks. The high-density polyethylene can have a density of at least 940 kg/m | 12-18-2014 |
20150031262 | Fibers and Nonwovens Including a Propylene Random Copolymer, and Processes for Producing the Fibers and Nonwovens - Fibers can include a polypropylene composition, which can include a metallocene random copolymer of propylene and a comonomer that is an alpha-olefin different from propylene. The metallocene random copolymer can have a comonomer content of from 1.2 wt % to 1.8 wt %, a molecular weight distribution of at least 1.0 and of at most 4.0 obtained without thermal or chemical degradation, and a melting temperature T | 01-29-2015 |