Abstract: A polypropylene blend including from 0.5 to 50% by weight of a syndiotactic polypropylene having a multimodal molecular weight distribution and at least 50% by weight of an isotactic polypropylene.

Abstract: A polypropylene fibre including at least 80% by weight of a first isotactic polypropylene produced by a metallocene catalyst, and from 5 to 20 by weight of a second isotactic polypropylene produced by a Ziegler-Natta catalyst.

Abstract: Polypropylene having improved long chain branching increased melt strength obtained by irradiating polypropylene with an electron beam having an energy of at least 5 MeV and with a radiation dose of from 5 to 100 kGray in the presence of a grafting agent, the branching index of the obtained polypropylene being lower than 0.7.

Abstract: A polypropylene fibre including a polypropylene blend comprising up to 15% by weight of sPP at least 10% by weight of a first isotactic polypropylene produced by a metallocene catalyst, and optionally a second isotactic polypropylene produced by a Ziegler-Natta catalyst.

Abstract: A process for producing polypropylene having increased melt strength, the process comprising irradiating polypropylene with an electron beam having an energy of at least 5 MeV and with a radiation dose of from 5 to 100 kGray in the presence of a grafting agent for forming long chain branches on the polypropylene molecules.

Abstract: A method of continually measuring the cetane number of a diesel fuel, the method comprising the steps of: (a) providing a diesel engine having means for selectively supplying at least three diesel fuels to the engine, a first actuator for varying the injection timing of the engine, a second actuator for varying the fuel flow of the engine, and a third actuator for varying the compression ratio of the engine; (b) providing a first supply of a diesel fuel of known cetane number, a second supply of a diesel fuel of different known cetane number and a third supply of a diesel fuel of unknown cetane number to be measured, the third supply being connected to a diesel fuel blending system; (c) in a first cycle selectively and alternately supplying the first, second and third supplies to the diesel engine, and for each supply, controlling the first actuator to achieve an injection timing of a predetermined angle before top dead centre, controlling the second actuator to achieve a predetermined fuel flow and contro

Abstract: Use of isotactic polypropylene homopolymers or copolymers in processes in which the polypropylene solidifies from a melt, wherein for enhanced speed of solidification of the polypropylene the polypropylene has a melt temperature and a crystallization temperature not more than 50° less than the melt temperature resulting from the polypropylene having been produced using a metallocene catalyst component having the general formula:

Abstract: Provided is a method for the production of a reinforced polymer, which method comprises: (a) introducing carbon nanotubes into a polymer to provide a mixture of the polymer and the nanotubes; (b) stretching the mixture at or above the melting temperature (Tm) of the polymer to orient the carbon nanotubes; and (c) stretching the mixture in the solid state to further orient the carbon nanotubes.