Abstract: A hydraulic cam shaft adjuster has a driven outer body comprising at least one hydraulic chamber, and an inner body disposed on the inside of the outer body (4), which can be firmly attached to the camshaft and has at least one pivoting wing extending into the hydraulic chamber in the radial direction, thus partitioning the hydraulic chamber into a first working chamber and a second working chamber. The inner body has at least one oil inlet and oil outlet conduit extending from a jacket interior to a jacket exterior of the inner body up to one of the two working chambers. The inner body is assembled using at least one first element and one second element, wherein the two elements each have at least one geometry at front sides facing each other, forming the oil inlet and oil outlet conduit of the inner part together with the other element.

Abstract: 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.

Abstract: 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 d?/dt of 1.00 s?1 at a temperature of 180° C. In certain embodiments, the strain hardening index is defined as the slope of a logarithm to the basis 10 of a tensile stress growth function as a function of a logarithm to the basis 10 of a Hencky strain for the range of Hencky strains between 1 and 3.

Abstract: Multi-branched polypropylene having a g? of less than 1.00.

Abstract: 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: Vicat B [° C.]>?3.96·Cx [mol %]+86.85; wherein Vicat B is the heat resistance, according to ISO 306 (50 N), of the composition and/or the polypropylene material; and Cx is the comonomer content the composition and/or the polypropylene material.

Abstract: 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.

Abstract: A hydraulic cam shaft adjuster has a driven outer body comprising at least one hydraulic chamber, and an inner body disposed on the inside of the outer body (4), which can be firmly attached to the camshaft and has at least one pivoting wing extending into the hydraulic chamber in the radial direction, thus partitioning the hydraulic chamber into a first working chamber and a second working chamber. The inner body has at least one oil inlet and oil outlet conduit extending from a jacket interior to a jacket exterior of the inner body up to one of the two working chambers. The inner body is assembled using at least one first element and one second element, wherein the two elements each have at least one geometry at front sides facing each other, forming the oil inlet and oil outlet conduit of the inner part together with the other element.

Abstract: 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: c. the pressure during the polymerization of propylene and optionally one or more other comonomers in said reaction vessel is at least 45.4 bar; d. the temperature during the polymerization of propylene and optionally one or more other comonomers in said reaction vessel is below 90° C.; and c. the polymerization of propylene and optionally one or more other comonomers is conducted in said reaction vessel in the presence of a catalyst system having a surface area of not more than 350 m2/g, measured according to ISO 9277, and said catalyst system comprises a metallocene catalyst having zirconium as the transition metal.

Abstract: 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.

Abstract: 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?1 at a temperature of 180° C. In certain embodiments, the strain hardening index is defined as the slope of the logarithm to the basis 10 of the tensile stress growth function as function of the logarithm to the basis 10 of the Hencky strain for the range of the Hencky strains between 1 and 3. The polypropylene may have xylene solubles in the range of 0.5 to 1.5 percent by weight. In certain embodiments, the polypropylene has a strain hardening index in the range of 0.15 to 0.30. In certain embodiments, the polypropylene has a melting point of at least 148° C.

Abstract: 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?1) of at least 0.30 measured by a deformation rate d?/dt of 1.00 s?1 at a temperature of 180° C., where the strain hardening index (SHI) is defined as the slope of the logarithm to the basis 10 of the tensile stress growth function (log(?E+)) as a function of the logarithm to the basis 10 of the Hencky strain (log(?)) in the range of Hencky strains between 1 and 3.

Abstract: Multi-branched polypropylene having a g? of less than 1.

Abstract: 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.

Abstract: A catalyst system comprising an asymmetric catalyst, wherein the wherein the catalyst system has a porosity of less than 1.40 ml/g.

Abstract: 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: c. the pressure during the polymerization of propylene and optionally one or more other comonomers in said reaction vessel is at least 45.4 bar; d. the temperature during the polymerization of propylene and optionally one or more other comonomers in said reaction vessel is below 90° C.; and c. the polymerization of propylene and optionally one or more other comonomers is conducted in said reaction vessel in the presence of a catalyst system having a surface area of not more than 350 m2/g, measured according to ISO 9277, and said catalyst system comprises a metallocene catalyst having zirconium as the transition metal.

Abstract: A polypropylene with a low amount of impurities, in particular a low amount of aluminum and boron residues.

Abstract: The present technology relates to a blown film comprising a multi-branched polypropylene having a g? of less than 1.00. In certain embodiments, the material properties of the film are represented by the equation SIT?0.03·EIM?92; wherein SIT is the heat sealing initiation temperature of the film in ° C.; and EIM is the tensile modulus, in MPa, of at least one of the film in an injection-molded state measured according to ISO 527-2; and the polypropylene material in an injection-molded state measured according to ISO 527-2.

Abstract: 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?1) of at least 0.30 measured by a deformation rate d?/dt of 1.00 s?1 at a temperature of 180° C., where the strain hardening index (SHI) is defined as the slope of the logarithm to the basis 10 of the tensile stress growth function (log(?E+)) as a function of the logarithm to the basis 10 of the Hencky strain (log(?)) in the range of Hencky strains between 1 and 3.

Abstract: 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: Vicat B [° C.]>?3.96·Cx [mol %]+86.85; wherein Vicat B is the heat resistance, according to ISO 306 (50 N), of the composition and/or the polypropylene material; and Cx is the comonomer content the composition and/or the polypropylene material.

Abstract: 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.