| Patent application number | Description | Published |
|---|
| 20100029468 | Controlled Distribution of Active Sites in Ziegler-Natta Catalyst Systems - The present invention provides a method for improving and controlling the activity of Ziegler-Natta catalyst systems. | 02-04-2010 |
| 20100056736 | Controlled Distribution of Stereospecific Sites in Ziegler-Natta Catalyst Systems - This invention relates to an improved method for improving the tacticity of Ziegler-Natta catalyst systems and for controlling the behaviour of the active stereospecific sites. | 03-04-2010 |
| 20100069580 | CATALYST COMPOSITION FOR THE (CO) POLYMERIZATION OF PROPYLENE - The present invention relates to a process for the production of propylene polymers in the presence of a blend of a first Ziegler-Natta catalyst, which comprises a titanium compound having at least one titanium-halogen bond and a diether compound as internal electron donor, and a second Ziegler-Natta catalyst, which comprises a titanium compound having at least one titanium-halogen bond and a succinate compound as internal electron donor. | 03-18-2010 |
| 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 |
| 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 |
