Abstract: The object of the present invention is polyphenylene oxide based film with crystalline nanoporous phases with surface area equal to or greater than 30 m2/g, preferably greater than 100 m2/g, and a procedure for the attainment thereof.

Abstract: The present invention regards yarns comprising at least 1% by weight of fibre of a syndiotactic polystyrene containing a co-crystalline phase comprising at least one active guest compound, textiles comprising the aforementioned yarns and methods for preparing the same.

Abstract: The present invention relates to elastomeric compositions for tyres and relative compounds, components and tyres comprising them, said compositions comprising an elastomeric polymer, a phenolic product, optionally already partially cross-linked, optionally an aldehyde and/or at least a methylene donor product and an oxidised carbon allotrope as a cross-linking catalyst. Advantageously, this catalyst is able to complete the cross-linking reactions of the phenolic resins in the conventional times and conditions of vulcanisation, or even more rapidly, providing mechanically stable compounds.

Abstract: The present invention regards yarns comprising at least 1% by weight of fibre of a syndiotactic polystyrene containing a co-crystalline phase comprising at least one active guest compound, textiles comprising the aforementioned yarns and methods for preparing the same.

Abstract: There is described a new disordered nanoporous crystalline form of syndiotactic polystyrene, characterized by a specific X-ray diffractrogram, the process for its preparation and various articles comprising this form of s-PS. This disordered nanoporous crystalline form exhibits empty crystalline cavities of nanometric sizes, and in this case performs the function of absorbing molecules with low molecular mass and is useful in particular as functionally active packaging for plant products.

Abstract: There is described a new disordered nanoporous crystalline form of syndiotactic polystyrene, characterized by a specific X-ray diffractrogram, the process for its preparation and various articles comprising this form of s-PS. This disordered nanoporous crystalline form exhibits empty crystalline cavities of nanometric sizes, and in this case performs the function of absorbing molecules with low molecular mass and is useful in particular as functionally active packaging for plant products.

Abstract: The present invention relates to a process for preparing a new nanoporous crystalline form of syndiotactic polystyrene, to the thus obtained crystalline form, to molecular-complex crystalline phases obtained by exposition of such crystalline form to low-molecular-mass molecules, and to the related processes for their preparation.

Abstract: The present invention relates to a process for preparing a new nanoporous crystalline form of syndiotactic polystyrene, to the thus obtained crystalline form, to molecular-complex crystalline phases obtained by exposition of such crystalline form to low-molecular-mass molecules, and to the related processes for their preparation.

Abstract: Solid polymeric materials for detection, transfer, amplification and memory of chirality of optically active compounds are described. These materials not only are able to absorb also traces of volatile organic compounds (both chiral and achiral) prevailingly as guest of a nanoporous crystalline phase, but for the case of chiral guests are also able to transfer and amplify their chirality, producing intense phenomena of induced circular dichroism (ICD). This induced dichroism remains stable also after chiral guest removal, as well as after temperature increases at least up to 250° C. The solid polymeric materials of the present invention can find applications in sensorics of optically active molecules as well as in systems for storage of data.

Abstract: A tire including at least one structural element includes a crosslinked elastomeric material obtained by crosslinking a crosslinkable elastomeric composition including: (a) 100 phr of at least one elastomeric polymer; (b) 0.1 phr to 15 phr, preferably 0.3 phr to 10 phr, of at least one methylene donor compound: c) 0.4 phr to 20 phr, preferably 0.8 phr to 15 phr of at least one methylene acceptor compound; (d) 1 phr to 50 phr, preferably 2 phr to 40 phr, more preferably 4 phr to 30 phr, of at least one layered material, the at least one layered material having an individual layer thickness of 0.2 nm to 30 nm, preferably 0.3 nm to 15 nm, more preferably 0.

Abstract: A tire including at least one structural element including a crosslinked elastomeric material obtained by crosslinking a crosslinkable elastomeric composition including: (a) at least one elastomeric polymer; (b) at least one layered material, the layered material having an individual layer thickness of 0.2 nm to 30 nm, preferably 0.3 nm to 15 nm, more preferably 0.5 nm to 2 nm, wherein the layered material shows, in an X-ray powder diffraction pattern, an X-ray intensity ratio (R) defined according to the following formula: (R)=[A(001)/A(hk0)max]×100 wherein: A(001) is the area of the peak; A(hk0)max is the area of the most intense peak (hk0), at least one of h or k being different from 0; lower than or equal to 20, preferably lower than or equal to 15, more preferably lower than or equal to 10, still more preferably lower than or equal to 5. Preferably, the at least one structural element is a tire tread band.

Abstract: The present invention relates to microporous materials (i.e., materials presenting high porosity, often referred to as aerogels) based on syndiotactic polystyrene and characterized by the presence of cavities with nanometric dimensions characteristic of the ? crystalline form and to processes for their preparation. These materials are capable of absorbing with fast kinetics volatile organic compounds from liquid or gaseous phases, also when such components are present at very low concentrations.

Abstract: The invention relates to copolymers of alkenes and conjugated dienes containing cyclopropane and cyclopentane rings in the main chain. These copolymers are charachterised in that the amount of cyclopropane units is between 0.1% and 50% by weight and that the molar percent of the cyclopropane units is higher than the molar percent of the unsubstituted cyclopentane units.

Abstract: The invention relates to copolymers of alkenes and conjugated dienes containing cyclopropane and cyclopentane rings in the main chain. These copolymers are charachterised in that the amount of cyclopropane units is between 0.1% and 50% by weight and that the molar percent of the cyclopropane units is higher than the molar percent of the unsubstituted cyclopentane units.

Abstract: Isotactic-polypropylene-based copolymers having a homogenous distribution of recurring units of formula (1): where R is a hydrogen, halide radical or a hydrocarbyl radical optionally containing an atom selected from oxygen, nitrogen, sulphur, phosphorus and silicon, and n is an integer ranging from 1 to 3; said copolymer having a 13C-NMR spectrum wherein the resonance signals attributed to the links between different monomeric units fall around 30, 34, 35, 45 and 47 ppm and present intensities at least two times higher than the resonance signals attributed to styrene—styrene sequences around 41 ppm and 44-46 ppm; a process for preparing said copolymers carried out in the presence of homogeneous catalytic systems comprising a metallocene compound and a cocatalyst; functionalized copolymers obtained from said isotactic-polypropylene-based copolymers; and graft copolymers comprising said isotactic-polypropylene-based copolymers as backbones.

Abstract: Isotactic-polypropylene-based copolymers having a homogeneous distribution of recurring units of formula (1) where R is a hydrogen, halide radical or hydrocarbyl radical optionally containing an atom selected from oxygen, nitrogen, sulphur, phosphorus and silicon and n is an integer ranging from 1 to 3; said copolymer having a 13C-NMR spectrum wherein the resonance signals attributable to the links between different monomeric units fall around 30, 34, 35, 45 and 47 ppm and present intensities at least two times higher than the resonance signals attributable to styrene-styrene sequences around 41 ppm and 44-46 ppm. A process for preparing said copolymers carried out in the presence of homogeneous catalytic systems comprising a metallocene compound and a cocatalyst. Functionalized copolymers obtainable from said isotactic-polypropylene-based copolymers. Graft copolymers comprising said isotactic-polypropylene-based copolymers as backbones.

Abstract: The use of the crystalline nanoporous form &dgr; of syndiotactic homopolymer or copolymers of styrene as sensing elements for detection of organic pollutants is disclosed as well as sensors using such polymers. The sensors so obtained are suitable for the detection in air or water of organic pollutants.

Abstract: Semicrystalline manufactured articles made of syndiotactic poly-p-methylstyrene (s-PpMS) in a crystalline form having a high melting point (225.degree. C.), and processes for the preparation thereof. Processes for preparing semicrystalline manufactured articles (semi-finished products, formed articles, fibers, films, etc.) made of s-PpMS in its different crystalline forms by exposure of amorphous manufactured articles to suitable solvents and by subsequent thermomechanical treatments.

Abstract: Articles of syndiotactic styrene polymer where the polymer is present predominantly in a new crystalline form characterized by an X-ray spectrum which presents reflections of maximum intensity at 2 .theta.of 12.2.degree. and 20.0.degree., where in the 2 .theta. range from 15.degree. to 18.degree. no reflections of appreciable intensity appear.

Abstract: This invention relates to composite manufactured articles formed by a set of uniaxially oriented isotatic polypropylene films, having a resistance to delamination of at least 0.4 kg/cm are prepared by heating under pressure a plurality of isotatic polypropylene films superimposed to each other and separated from each other by a non oriented polypropylene films. The oriented films show an orientation of the crystalline phase such as to produce X-ray scattering angles .DELTA..times. equal to or lower than 10.degree.. The non oriented film show an orientation of the crystalline phase such as to produce X-ray scattering angles higher than 20.degree., at a temperature between a temperature equal to or higher than the melting temperature, measured in non restrain conditions, of the non oriented film and a temperature lower than the melting temperature, measured in restrained conditions, of the oriented films.