The present invention is directed to a propylene polymer composition comprising (a) at least 90 wt. %, based on the weight of the total propylene homopolymer composition, of a propylene homopolymer having (i) a pentad isotacticity (mmmm) of equal or more than 98.0 mol.-%, determined by quantitative .sup.13C NMR spectroscopy, (ii) a relative amount of <2,1> erythro regio-defects of not more than 0.2 mol.-%, determined by quantitative .sup.13C NMR spectroscopy, as described herein, and (b) a nucleating agent (B) selective for the beta-modification of isotactic polypropylene in an amount of from 0.001 to 1.0 wt. %, based on the weight of the total propylene homopolymer composition, wherein said propylene homopolymer composition has a melt flow rate MFR.sub.2 (230° C., 2.16 kg) according to ISO 1133 of 0.1 to 10 g/10 min., a beta-phase content of not less than 80%, measured by wide angle x-ray scattering (WAXS). Further disclosed is a moulded propylene homopolymer product obtainable by compression moulding or extrusion of the propylene homopolymer composition.

A polypropylene composition made from or containing: (a) 65 to 85 weight % of a crystalline propylene polymer having an amount of isotactic pentads (mmmm), measured by 13C-MNR on the fraction insoluble in xylene at 25° C. higher than 97.0 molar% and a polydispersity index from 3 to 15; (b) 5 to 25 weight % of an elastomeric copolymer of ethylene and propylene, having an amount of recurring units deriving from ethylene ranging from 30 to 70 weight %, and being partially soluble in xylene at ambient temperature; wherein the fraction soluble in xylene at ambient temperature having an intrinsic viscosity value from 3 to 10 dl/g; and (c) 5 to 25 weight % of recycled polyethylene (r-PE) having a melt flow rate (190° C./2.16 Kg) from 0.1 to 10 g/10 min, wherein the polypropylene composition having a melt flow rate (ISO 1133 230° C./2.16 kg) higher than 3.0 to 15 g/10 min.

A carrier material for producing a decorated wall or floor panel, as well as the corresponding wall or floor panel, may comprise a matrix material and a solid material. The matrix material is present from ≥25 wt.-% to ≤55 wt.-% and the solid material is present from ≥45 wt.-% to ≤75 wt.-% of the carrier material. The matrix material and the solid material together may be present in an amount of ≥95 wt.-% of the carrier material. The solid material is formed to at least 50 wt.-% of a solid composition consisting of at least a first layered silicate powder and a second layered silicate powder. The matrix material is formed to at least 50 wt.-% by a plastic composition consisting of a homopolymer and at least a first copolymer and a second copolymer.

A propylene ethylene copolymer having: i) xylene soluble fraction at 25° C. ranging from 14 wt % to 27 wt %; ii) intrinsic viscosity of the fraction soluble in xylene at 25° C. ranging from 1.0 to 2.4 dl/g; iii) melt flow rate, MFR, ranging from 1.0 g/10 min to 50.0 g/10 min; iv) an ethylene derived units content ranging from 5.0 wt % to 12.0 wt %; v) the ethylene derived units content on the fraction insoluble in xylene at 25° C. ranging from 2.5 wt % to 6.0 wt %; vi) the ethylene derived units content on the fraction soluble in xylene at 25° C. ranging from 15.2. wt % to 30.2 wt %; and vii) C.sup.13 NMR sequences PEP measured on the fraction insoluble in xylene at 25° C. ranging from 3.5 mol % to 5.5 mol % and C.sup.13 NMR sequences PEP measured on the fraction soluble in xylene at 25° C. ranging from 11.0 mol % to 14.2 mol %.

A single-layer tubular structure intended to convey fluids for a motor vehicle, formed by a layer formed by a composition predominantly including at least one catalyzed semi-crystalline aliphatic polyamide, the composition being formed by at least 30% by weight, in particular at least 50% by weight, of recycled material originating from at least one single-layer and/or multi-layer tube that was intended to convey fluids for a motor vehicle, the at least one single-layer and/or multi-layer tube being formed by a composition that predominantly includes at least one catalyzed or non-catalyzed polyamide, said at least one single-layer and/or multi-layer tube having been crushed, then at least recompounding with or without the addition of at least one catalyst to be able to be recycled, a simple one-off crushing being excluded.

A propylene resin composition comprising: 100 parts by mass of a heterophasic propylene polymer material (A) comprising a propylene polymer (I) and an ethylene-α-olefin copolymer (II); 0.1 to 5 parts by mass of an organo-modified siloxane compound (B) having a weight-average molecular weight of 10,000 to 90,000; and 0.001 parts by mass to 5 parts by mass of a colorant (C). The propylene polymer (I) is a propylene homopolymer (I-1) or a propylene copolymer (I-2). The propylene copolymer (I-2): a copolymer comprising a structural unit derived from propylene and a structural unit derived from at least one olefin selected from the group consisting of ethylene and α-olefins having 4 to 12 carbon atoms, where an amount of the structural unit derived from at least one olefin selected from the group consisting of ethylene and α-olefins having 4 to 12 carbon atoms is 0.05 mass % or more and less than 10 mass %.

A semicrystalline multiblock copolymer includes alternating blocks of semicrystalline isotactic polypropylene (iPP) and semicrystalline polyethylene (PE), having a block arrangement according to formula (I):

(iPP.sub.w).sub.p(PE.sub.x)(iPP.sub.y).sub.m(PE.sub.z).sub.n   (I),

wherein p is 0 or 1; m is 0 or 1; n is 0 or 1; the sum of p, m, and n is 1, 2, or 3; and the sum of w, x, y, and z is greater than or equal to 40 kg/mol, with the provisos that: when m and n are 0, the sum of w and x is greater than or equal to 140 kg/mol; and when p and n are 0, the sum of y and x is greater than or equal to 140 kg/mol. Related compositions and methods are also provided.

A semicrystalline multiblock copolymer includes alternating blocks of semicrystalline isotactic polypropylene (iPP) and semicrystalline polyethylene (PE), having a block arrangement according to formula (I):
(iPP.sub.w).sub.p(PE.sub.x)(iPP.sub.y).sub.m(PE.sub.z).sub.n   (I),
wherein p is 0 or 1; m is 0 or 1; n is 0 or 1; the sum of p, m, and n is 1, 2, or 3; and the sum of w, x, y, and z is greater than or equal to 40 kg/mol, with the provisos that: when m and n are 0, the sum of w and x is greater than or equal to 140 kg/mol; and when p and n are 0, the sum of y and x is greater than or equal to 140 kg/mol. Related compositions and methods are also provided.

A gas-barrier multilayered container having (i) a layer of a propylene type polymer which chiefly includes a homopolypropylene having an isotactic index of not less than 93%, and (ii) a layer of an ethylene-vinyl alcohol copolymer having not less than two crystal melting peak temperatures. Also disclosed is a lustrous and shock-resistant multilayered container having at least (i) an outermost layer of a propylene type polymer A which chiefly includes a homopolypropylene having a melt flow rate of 2.0 to 10.0 g/10 min., and (ii) an inner layer of a propylene type polymer B which chiefly includes a homopolypropylene having a melt flow rate of not more than 1.0 g/10 min.

Disclosed is the preparation of compatibilized thermoplastic vulcanizates with reduced crosslinked rubber dispersion sizes and dispersity. A cross-linkable ethylene-propylene-diene terpolymer with majority propylene (PEDM) is used to compatibilize a plastic and rubber blend of a polypropylene (PP) and an ethylene-propylene-diene terpolymer rubber, where the propylene content is less than 50 wt % (EPDM), in dynamic vulcanization and preparation of PP/EPDM thermoplastic vulcanizates. The resulting PP/EPDM thermoplastic vulcanizates typically exhibit a weight average equivalent dispersion diameter of less than 3 microns and a particle size polydispersity index (PSDI), or weight average over number average dispersion diameter, of less than 5. This reduction in crosslinked rubber dispersion size in a PP/EPDM TPV by using PEDM compatibilizers enhances the toughness of the vulcanizate product by raising both elongation to break and break stress.