Abstract: Polyolefin compositions comprising: (A) 20 to 50 parts by weight of a particular propylene polymer having a MWD greater than 3.5; and (B) 50 to 80 parts by weight of an elastomeric ethylene copolymer having a low enthalpy of fusion and a narrow MWD. The compositions of the invention are capable of giving, after dynamic vulcanization, thermoplastic elastomeric products having optimum elastomeric properties and a good balance of physico-mechanical properties.

Abstract: Compositions of elastoplastic ionomeric polymers having hardness below 92 points Shore A. comprising polar elastomers (10-45 wt. %), such as polyacrylic and nitrile rubbers, apolar crystalline polyolefins (15-40 wt. %) and elastoplastic polyolefins (25-75 wt. %). These compositions are used for making single-layer and multilayer laminar products that can be bonded by radio-freqeuncy welding, and manufactured articles possessing antistatic properties.

Abstract: An elastomeric thermoplastic polyolefin composition comprising (i) an heterophasic olefin polymer composition comprising a crystalline propylene homopolymer of copolymer fraction and an elastomeric ethylene copolymer fraction and (ii) an elastomeric polymer having a hardness equal to or less than 90 points selected from the group consisting of copolymers of ethylene, ethylene-methyl acrylate copolyers, saturated or unsaturated styrene block copolymers and unsaturated norbornene polymers.

Abstract: The invention concerns polyolefin compositions with high flame resistance. The compositions comprise (percent by weight): A) from 20 to 60% by weight of a heterophasic olefin polymer composition comprising a crystalline olefin polymer (a) and an elastomeric olefin polymer (b), said composition (A) being optionally modified with at least one functional monomer in an amount from 0.005% to 0.6% by weight with respect to the total weight of the total composition; B) from 15 to 40% by weight of one or more than one inorganic hydrated fillers; C) from 12 to 40% by weight of one or more than one organic flame retardants containing nitrogen in the molecule; D) from 0 to 40% by weight of one or more than one inorganic anhydrous fillers. Possible applications include the use as insulating material in electric wires and cables and the use as waterproofing sheets for roofs and tunnels.

Abstract: Compositions of elastoplastic ionomeric polymers having hardness below 92 points Shore A. comprising polar elastomers (10-45 wt. %), such as polyacrylic and nitrile rubbers, apolar crystalline polyolefins (15-40 wt. %) and elastoplastic polyolefins (25-75 wt. %). These compositions are used for making single-layer and multilayer laminar products that can be bonded by radio-freqeuncy welding, and manufactured articles possessing antistatic properties.

Abstract: Esters of 3-(2-furyl)-2-propenoic acid with diols having the general formula A2X, in which A is a 3-(2-furyl)-2-propenoate group and X is a C1-C6 alkylene group. The said esters are used as crosslinking agents in processes for crosslinking polymers.

Abstract: Esters of 3-(2-furyl)-2-propenoic acid with diols having the general formula A2X, in which A is a 3-(2-furyl)-2-propenoate group and X is a C1-C6 alkylene group.

Abstract: Mixtures of C2-C10 olefin polymers functionalized with carboxylic acids which are neutralized from 1 to 100% with metallic ions The mixtures comprise (by weight): (1) 100 parts of a heterophasic polyolefin composition comprising crystalline polypropylene and an elastomeric fraction of an ethylene/propylene or superior ethylene/&agr;-olefin copolymer where the ethylene content is less than 40%; and (II) 0-250 parts of an elastomeric polymer selected from: a) ethylene/C3-C10 &agr;-olefin copolymers containing at least 20% of a C3-C10 &agr;-olefin; b) ethylene/methyl acrylate copolymers containing from 15 to 30% of recurrent units of methyl acrylate, and having a MFR ranging from 1 to 10 g/10 min; and c) polyisobutylenes; d) atactic propylene homopolymers and amorphous ethylene/C3-C10 &agr;-olefins copolymers produced with metallocenic catalysts; and e) styrene block copolymers containing butadiene and isoprene as comonomer.

Abstract: Polyolefinic compositions comprising: (A) 1-99% by weight of a propylene amorphous polymer, and (B) 1-99% by weight of a copolymer selected from (BI) a copolymer of propylene with ethylene and/or alpha-olefins C4-C10, and (BII) a composition comprising: (a) 10-50% by weight of an isotactic polypropylene with ethylene and/or alpha-olefins C4-C10; (b) 0-20% by weight of a copolymer containing ethylene, insoluble in xylene, and (c) 40-80% by weight of an elastomeric copolymer of ethylene with propylene and/or alpha-olefins C4-C10, optionally with small amounts of diene. These compositions are endowed with good mechanical and optical properties and are suitable for the manufacture of articles for biomedical applications.

Abstract: The present invention relates to bituminous compositions, particularly suitable for paving and building waterproofing, comprising a bitumen and a copolymer of ethylene with propylene and/or other alpha-olefins and optionally with smaller proportion of a diene or polyene. The copolymer is besides characterized by a very low crystallinity, intrinsic viscosity higher than 1.5 dl/g and by a content of propylene units or of the alpha-olefin in form of triads comprised between 4 and 50% of the propylene or of the alpha-olefin, with at least 70% of said triads having isotactic structure.

Abstract: A foamed ionomer polymer comprising metal ions pertaining to the IA, IIA, or IIB Group of the Periodic Table, and a crystalline or semicrystalline graft copolymer where the backbone polymer chain of the graft copolymer is a polymer of an olefin selected from ethylene and C3-C10 &agr;-olefins, and the grafted chains comprise monomers containing at least one functional group selected from carboxylic groups and their derivatives.

Abstract: A mixture of elastomeric thermoplastic compositions which includes, on a weight percentage basis, (A) from 40 to 90% of a heterophasic polyolefin composition having a melt flow rate measured according to ASTM-D 1238, condition L, ranging from 20 to 100 g/10 min; and (B) from 10 to 60% of a heterophasic polyolefin composition that is partially dynamically crosslinked. The powders of this mixture are used in slush molding process for the production of laminated products.

Abstract: The present invention relates to polyolefin compositions comprising: (a) 20 to 50 parts by weight of a particular propylene polymer having an MWD greater than 3.5; and (b) 50 to 80 parts by weight of an elastomeric ethylene copoymerR having a low enthalpy of fusion and a narrow MWD.

Abstract: Mixtures containing bitumen and at least one polymer selected from (A) an essentially atactic propylene homopolymer, (B) an amorphous propylene copolymer with a C.sub.4 -C.sub.10 .alpha.-olefin, and (C) an amorphous propylene copolymer with ethylene; the polymers (A) and (B) having the following characteristics:intrinsic viscosity (.eta.): greater than 1 dl/g;% (r)-% (m)>0, where % (r) is the percentage of the syndiotactic dyads, and % (m) is the percentage of the isotactic dyads;less than 2% of the CH.sub.2 groups are contained in the (CH.sub.2).sub.n sequences where n.gtoreq.2; andBernoulli index (B)=1.+-.0.2;the copolymer (C) having the following characteristics:the quantity of propylene in the copolymer (%P), expressed in mole percentage, and the EPE/(EPE+PPE+PPP) triad ratio satisfy the following equation:0.01 % P+EPE/(EPE+PPE+PPP).gtoreq.1;and less than 2% of the CH.sub.2 groups are contained in the (CH.sub.2).sub.n sequences where n is an even number.

Abstract: Essentially atactic cross-linked propylene homopolymer or amorphous cross-linked random copolymer of propylene with ethylene and/or at least one C.sub.4 -C.sub.10 .alpha.-olefin. Polymer composition comprising the above mentioned cross-linked atactic or amorphous polymers and other olefin polymers. Foamed polymer or polymer composition obtained by foaming said cross-linked atactic or amorphous polymers or said polymer composition.Process for the preparation of said polymer or foamed polymer composition.

Abstract: A bituminous mixture having improved physical properties is obtained by adding to a bitumen a polyphosphoric acid (I) containing phosphorus, calculated as P.sub.2 O.sub.5, in amount from 80% to 87% by weight, and a polymer composition (II) comprising (A) a propylene homopolymer or copolymer, (B) optionally an ethylene copolymer fraction insoluble in xylene at ambient temperature and (C) a copolymer fraction soluble in xylene at ambient temperature.

Abstract: A mixture containing bitumen and a polymer composition, characterized in that the polymer composition comprises:A) 10-40 parts by weight of an isotactic propylene homopolymer, or a random copolymer of propylene with ethylene and/or a C.sub.4 -C.sub.10 .alpha.-olefin;B) 0-20 parts by weight of a copolymer fraction containing ethylene, which is insoluble in xylene at ambient temperature;C) 50-80 parts by weight of a copolymer fraction of ethylene with propylene and/or C.sub.4 -C.sub.10 .alpha.-olefin, said copolymer fraction being soluble in xylene at ambient temperature and having an intrinsic viscosity greater than 1.5 and up to 2.2 dl/g and having 20 to 45 wt. % ethylene.

Abstract: This invention relates to PP compositions, particularly suitable for the preparation of foamed materials, comprising, by weight:a) 3-75% of cross-linked PPb) 97-25% of not cross-linked PP, having (.eta.) comprised between 0.50 and 1.3 dl/g, and are characterized by:M.I. (230.degree. C., 2.16 Kg) comprised between 0.001 and 600 kg/10'cross-linked PP as dispersion in the not cross-linked PP,and in form of about spheroidal gels of 0.5-100 microns and to a process for the preparation of the above mentioned compositions, comprising to allow a mix of PP with peroxidic cross-linking, a furane derivative co-agent and optionally a foaming agent, to undergo a dynamical vulcanization.

Abstract: This invention relates to plastoelastomeric polyolefinic compositions comprising an intimate mixture of the following components, in the indicated percentages by weight:A) 10-50% of non cross-linked polypropylene;B) 2-10% of ethylene/propylene/(diene)non cross-linked elastomeric copolymer,C) 30-40% of polymeric product which is insoluble in xylene at 135.degree. C., comprising polypropylene and ethylene/propylene/(diene) copolymer, andD) 5-58% of an extender oil.This invention also relates to a process for preparing the above compositions, which consists in subjecting to vulcanization under dynamic conditions a mixture comprising, in % by weight:A) 20-80% of polypropylene,B) 80-20% of ethylene/propylene/(diene) elastomeric copolymer,C) 0.1-10%, referred to such copolymer, of a peroxide,D) 5-60%, referred to such peroxide, of a furan derivative as a cross-linking coadjuvant.and in adding, after vulcanization, the extender oil in an amount ranging from 6 to 100% calculated on the vulcanized product.

Abstract: This invention relates to plastoelastomeric polyolefinic compositions comprising an intimate mixture of the following components, in the indicated percentages by weight:(A) 10-50% of non cross-linked polypropylene;(B) 2-10% of ethylene/propylene/(diene) non cross-linked elastomeric copolymer,(C) 30-40% of polymeric product which is insoluble in xylene at 135.degree. C., comprising polypropylene and ethylene/propylene/(diene) copolymer, and(D) 5-58% of an extender oil.This invention also relates to a process for preparing the above compositions, which consists in subjecting to vulcanization under dynamic conditions a mixture comprising, in % by weight;(A) 20-80% of polypropylene;(B) 80-20% of ethylene/propylene/(diene) elastomeric copolymer,(C) 0.1-10%, referred to such copolymer, of a peroxide,(D) 5-60%, referred to such peroxide, of a furan derivative as a cross-linking coadjuvant.and in adding, after vulcanization, the extender oil in an amount ranging from 6 to 100% calculated on the vulcanized product.