New polypropylene composition, which combines low sealing initiation temperature (SIT), high hot-tack and good optical properties, like low haze, the use of such polypropylene composition and articles made therefrom.

Ethylene copolymers made in the gas phase using a phosphinimine based single site catalyst supported on a passivated inorganic oxide support. The ethylene copolymers have a relatively narrow molecular weight distribution and good rheological parameters.

Ethylene copolymers made in the gas phase using a phosphinimine based single site catalyst supported on a passivated inorganic oxide support. The ethylene copolymers have a relatively narrow molecular weight distribution and good rheological parameters.

An UHMWPE film having a tensile strength of at least 2.0 GPa, a tensile energy to break of at least 30 J/g, an Mw of at least 500 000 gram/mole, and a Mw/Mn ratio of at most 6, and a film width of at least 5 mm. The film may be manufactured via a process which comprises subjecting a starting UHMWPE with a weight average molecular weight of at least 500 000 gram/mole, an elastic shear modulus determined directly after melting at 160° C. of at most 1.4 MPa, and a Mw/Mn ratio of at most 6 to a compacting step and a stretching step under such conditions that at no point during the processing of the polymer its temperature is raised to a value above its melting point. The film may be used as starting material in any applications where high tensile strength and high energy to break are important. Suitable applications include ballistic applications, ropes, cables, nets, fabrics, and protective applications.

An UHMWPE film having a tensile strength of at least 2.0 GPa, a tensile energy to break of at least 30 J/g, an Mw of at least 500 000 gram/mole, and a Mw/Mn ratio of at most 6, and a film width of at least 5 mm. The film may be manufactured via a process which comprises subjecting a starting UHMWPE with a weight average molecular weight of at least 500 000 gram/mole, an elastic shear modulus determined directly after melting at 160° C. of at most 1.4 MPa, and a Mw/Mn ratio of at most 6 to a compacting step and a stretching step under such conditions that at no point during the processing of the polymer its temperature is raised to a value above its melting point. The film may be used as starting material in any applications where high tensile strength and high energy to break are important. Suitable applications include ballistic applications, ropes, cables, nets, fabrics, and protective applications.

The present invention relates to a new biaxially oriented polypropylene (BOPP) film, a process for the preparation of such film as well as the use of a polypropylene for the preparation of such film and an article comprising such film.

Provided is a method for producing an α-olefin polymer, comprising the step of polymerizing one or more kinds of α-olefins each having 3 to 30 carbon atoms with a polymerization catalyst obtained by using: (A) a metallocene compound; (B) an ionic compound capable of reacting with the metallocene compound to transform the compound into a cation; (C) an organometallic compound; and (D) one or more kinds of compounds selected from the group consisting of (d-1) an alcohol, (d-2) a phenol, and (d-3) an ether compound, the catalyst having a ratio between the component (A) and the component (D) of from 10:1 to 1:100 in terms of a molar ratio, and having a ratio of the component (D) to the component (C) of less than 1 in terms of a molar ratio.

Provided is a method for producing an α-olefin polymer, comprising the step of polymerizing one or more kinds of α-olefins each having 3 to 30 carbon atoms with a polymerization catalyst obtained by using: (A) a metallocene compound; (B) an ionic compound capable of reacting with the metallocene compound to transform the compound into a cation; (C) an organometallic compound; and (D) one or more kinds of compounds selected from the group consisting of (d-1) an alcohol, (d-2) a phenol, and (d-3) an ether compound, the catalyst having a ratio between the component (A) and the component (D) of from 10:1 to 1:100 in terms of a molar ratio, and having a ratio of the component (D) to the component (C) of less than 1 in terms of a molar ratio.

A door assembly. The door assembly may include at least one door panel and a door frame having a plurality of frame members including a header and a pair of side jambs. The invention may also be considered a frame member. The frame member may include a core; and a two-piece top piece adjoining the core to form a structural member. The core and the top piece may be a composite of cellulosic material and at least one other material. The door assembly may further include at least one adjacent panel. Also disclosed are door jamb frame members and mullion frame members.

The invention relates to a process for producing a polypropylene composition by sequential polymerization said polypropylene composition having low sealing initiation temperature (SIT) and high melting point (Tm), presenting thus a broad sealing window.