| Patent application number | Description | Published |
|---|
| 20090062494 | Process for the Preparation of Polypropylene - The present invention relates to a process for the preparation of polypropylene using a catalyst system of low porosity, the catalyst system comprising an asymmetric catalyst, wherein the catalyst system has a porosity of less than 1.40 ml/g. | 03-05-2009 |
| 20090131611 | SHORT-CHAIN BRANCHED POLYPROPYLENE - A short-chain-branched polypropylene having xylene solubles of at least 0.5 percent by weight is provided. In certain embodiments the polypropylene has a strain hardening index of at least 0.15 as measured by a deformation rate of 1.00 s | 05-21-2009 |
| 20090148716 | ELECTRICAL INSULATION FILM - Certain embodiments of the present technology provide a capacitor film comprising a polypropylene material. The capacitor film comprises xylene solubles of at least 0.5 percent by weight. In certain embodiments the xylene solubles are in a range of 0.5 to 1.5 percent by weight. The film also comprises a crystalline fraction melting in the temperature range of 200° C. to 105° C. determined by stepwise isothermal segregation technique. The crystalline fraction comprises a part, the part representing at least 10 percent by weight of said crystalline fraction, and wherein the part melts at a melting rate of 10° C./min. Certain embodiments present a capacitor film where the part melts at or below 140° C. In other embodiments, the said part melts at or below the temperature T=Tm−3° C., wherein Tm is the melting temperature of the capacitor film and/or the polypropylene material, and the part represents at least 45 percent by weight of the crystalline fraction. | 06-11-2009 |
| 20090149612 | BIAXIALLY ORIENTED POLYPROPYLENE FILM - The present technology relates to a biaxially oriented polypropylene film. The biaxially oriented polypropylene film comprises a polypropylene material having xylene solubles of at least 0.5 percent by weight. The polypropylene also has a strain hardening index of at least 0.15 measured at a deformation rate dε/dt of 1.00 s | 06-11-2009 |
| 20090149614 | CABLE LAYER ON POLYPROPYLENE BASIS WITH HIGH ELECTRICAL BREAKDOWN STRENGTH - Certain embodiments of the present technology provide a cable layer comprising a polypropylene material, where the cable layer and/or the polypropylene material comprise a crystalline fraction that crystallizes in a temperature range of 200 to 105° C., determined by stepwise isothermal segregation technique. The crystalline fraction comprises a part which during subsequent melting of the crystalline fraction at a melting rate of 10° C./min, the part melts at or below 140° C. and the part represents at least 10 percent by weight of the crystalline fraction. Certain embodiments also provide a process for the preparation of a cable layer, comprising providing the polypropylene material described herein and forming the polypropylene material into a cable layer. | 06-11-2009 |
| 20090169907 | EXTRUSION COATED SUBSTRATE - Certain embodiments provide an article comprising a substrate, wherein the substrate is extrusion coated with a composition comprising a multi-branched polypropylene having a g′ of less than 1.00. In certain embodiments, the substrate is extrusion coated with a composition comprising a polypropylene material. Either the composition and/or the polypropylene material are represented by the equation: | 07-02-2009 |
| 20090176902 | POLYPROPYLENE FOAM - The present technology relates to a foam comprising a polypropylene material. The polypropylene material is produced in the presence of a metallocene catalyst, and the foam and/or the polypropylene has a branching index g′ of less than 1.00 and a strain hardening index (SHI@1 s | 07-09-2009 |
| 20090208681 | Propylene Polymer Composition - A polypropylene with a low amount of impurities, in particular a low amount of aluminum and boron residues. | 08-20-2009 |
| 20090264606 | PROCESS FOR THE MANUFACTURE OF BRANCHED POLYPROPYLENE - A process for manufacturing a branched polypropylene, said branched polypropylene having a branching index g′ of less than 1.00, the process comprising the step of polymerizing propylene and optionally one or more other comonomers under non-supercritical conditions in a reaction vessel, wherein:
| 10-22-2009 |
| 20090312178 | CATALYTIC SYSTEM - A catalyst system comprising an asymmetric catalyst, wherein the wherein the catalyst system has a porosity of less than 1.40 ml/g. | 12-17-2009 |
| 20100134953 | ELECTRICAL INSULATION FILM - The present invention relates to a capacitor film comprising a biaxially oriented polypropylene wherein a) said polypropylene has a draw ratio in machine direction of at least 4.0 and a draw ratio in transverse direction of at least 4.0, and b) said polypropylene has an electrical breakdown strength EB63% according to IEC 60243-part 1 (1988) of at least 300 kV/mm at a draw ratio in machine direction and in transverse direction of 4.0. | 06-03-2010 |
| 20100168364 | MULTI-BRANCHED POLYPROPYLENE - Multi-branched polypropylene having a g′ of less than 1.00 | 07-01-2010 |
| 20110040061 | SHORT-CHAIN BRANCHED POLYPROPYLENE - A short-chain-branched polypropylene having xylene solubles of at least 0.5 percent by weight is provided. In certain embodiments the polypropylene has a strain hardening index of at least 0.15 as measured by a deformation rate of 1.00 s | 02-17-2011 |
