A wax-polymer compound includes (a) a polymer component that is a polymerized unsaturated monomer, optionally copolymerized with a vinyl-aromatic monomer, and (b) a halogenated hydrocarbon wax component. The polymer component is grafted to the halogenated hydrocarbon wax component, and the wax-polymer compound has a number average molecular weight of about 1,000 to about 100,000, A method of making the wax-polymer compound and a coated silica particle are also disclosed. A rubber composition includes a rubber elastomer comprising a polymerized unsaturated monomer and optionally a polymerized vinyl-aromatic monomer, the elastomer having a number average molecular weight of about 100,000 to about 1,000,000. It further includes a filler in an amount of about 5 to about 200 phr, the filler comprising carbon black, silica, or both; and a wax-polymer additive.

Provided is an insulated electric wire, a wire harness, and a composition for an electric wire coating material with which the amount of a filler, which is the flame retardant, can be reduced as much as possible without using electron beam crosslinking, the composition having a high heat resistance, a high gel fraction, flexibility, and good workability of assembling a wire harness. An electric wire coating material is made of a composition comprising (A) a silane-grafted polyolefin obtained by grafting a silane coupling agent onto a polyolefin having a density of 0.855 to 0.885 g/cm.sup.3, (B) an unmodified polyolefin having a density of 0.890 to 0.955 g/cm.sup.3, (C) a modified polyolefin modified by one or more functional groups selected from a carboxylic acid group, an acid anhydride group, an amino group, an acrylic group, a methacrylic group, and an epoxy group, (D) a bromine-based flame retardant and antimony trioxide, (E) a crosslinking catalyst batch, (F) zinc oxide and an imidazole-based compound, or zinc sulfide, (G) an antioxidant, (H) a metal deactivator, and (I) a lubricant.

A method of producing a silane cross-linked polyethylene is disclosed which includes maleating a polyethylene polymer to form a maleated polyethylene and reacting the maleated polyethylene with a primary or secondary amino silane to form a silane-grafted polyethylene. The method further includes treating the silane-grafted polyethylene in a moisture curing process to form the silane cross-linked polyethylene.

The purpose of the present invention is to provide a polar-group-containing propylene-type wax having excellent properties including a low melting point. A modified propylene-(-olefin) copolymer (A) according to the present invention is produced by grafting at least one compound selected from an unsaturated carboxylic acid, a derivative of the unsaturated carboxylic acid and an unsaturated sulfonic acid salt onto a propylene-(-olefin) copolymer (A1) and has an acid value of 1 to 100 KOHmg/g, wherein the propylene-(-olefin) copolymer (A1) comprises 60 to 95 mol % of a propylene-derived constituent unit (a) and 5 to 40 mol % of a constituent unit (b) derived from an -olefin having 4 or more carbon atoms, and satisfies the specific requirements (i) to (iii).

The purpose of the present invention is to provide a polar-group-containing propylene-type wax having excellent properties including a low melting point. A modified propylene-(-olefin) copolymer (A) according to the present invention is produced by grafting at least one compound selected from an unsaturated carboxylic acid, a derivative of the unsaturated carboxylic acid and an unsaturated sulfonic acid salt onto a propylene-(-olefin) copolymer (A1) and has an acid value of 1 to 100 KOHmg/g, wherein the propylene-(-olefin) copolymer (A1) comprises 60 to 95 mol % of a propylene-derived constituent unit (a) and 5 to 40 mol % of a constituent unit (b) derived from an -olefin having 4 or more carbon atoms, and satisfies the specific requirements (i) to (iii).

The present disclosure provides a peroxide-modified polyethylene, related compositions, and wire-and-cable products made therefrom. The process for preparing the peroxide-modified polyethylene including the steps of: (A) preparing a first Ziegler-Natta-catalyzed polyethylene in a first reactor; (B) transferring the first Ziegler-Natta-catalyzed polyethylene from the first reactor to a second reactor; (C) admixing a first amount of an organic peroxide to the second reactor; (D) reacting the organic peroxide with a polyethylene composition made from or containing the first Ziegler-Natta-catalyzed polyethylene, thereby coupling the polyethylene components and forming the peroxide-modified polyethylene; and (E) collecting the peroxide-modified polyethylene.

The present disclosure provides a peroxide-modified polyethylene and related compositions as well as films, sheets, and multilayer structures made therefrom. A film composition is made from or containing a peroxide-modified polyethylene composition made from or containing a peroxide-modified polyethylene made from or containing the reaction products of a polyethylene composition made from or containing a first Ziegler-Natta-catalyzed polyethylene and a first amount of an organic peroxide to the second reactor.

Process for the production of a polypropylene random copolymer (PP), the process comprising the steps of polymerising in a first reactor (R1) propylene and a comonomer (C1a) selected from a C.sub.4 to C.sub.8 -olefin in the presence of a first metallocene catalyst (MC1) yielding a first polypropylene copolymer (PP1), wherein the ratio of the feed of the comonomer (C1a) to the feed of propylene is in the range of 1 to 100 mol/kmol and the MFR.sub.2 of the first polypropylene copolymer (PP1) is in the range of 0.01 to 100 g/10 min; transferring the first polypropylene copolymer (PP1) to a second reactor (R2); polymerising in the second reactor (R2) and in the presence of said first polypropylene (PP1), propylene, a comonomer (C1b) selected from a C.sub.4 to C.sub.8 -olefin, and a second metallocene catalyst (MC2) yielding a second polypropylene copolymer (PP2), wherein the ratio of the feed of the comonomer (C1b) to the feed of propylene is in the range of 40 to 150 mol/kmol and the MFR.sub.2 of the second polypropylene copolymer (PP2) is in the range of 0.01 to 100 g/10 min; withdrawing the polypropylene random copolymer (PP) comprising the first polypropylene copolymer (PP1) and the second polypropylene copolymer (PP2) from the second reactor (R2); wherein the first metallocene catalyst (MC1) and/or the second metallocene catalyst (MC2) is a metallocene catalyst (MC) comprising a metallocene complex, and wherein the metallocene catalyst (MC) comprises a support comprising silica.

The invention provides a composition comprising the following A)-C): A) one or more monomers and/or oligomers selected from the group consisting of

##STR00001## each R is independently selected from the group consisting of the following; substituted or unsubstituted hydrocarbylenes, and substituted or unsubstituted hetero-hydrocarbylenes, each of the hydrocarbylenes and hetero-hydrocarbylenes having between 4 and 40 carbon atoms and x is any integer equal to or greater than 1; B) at least one chlorinated olefin-based polymer and/or at least one functionalized chlorinated olefin-based polymer; and C) at least one styrene-based block copolymer or derivative.

The invention also provides a composition comprising the following D)-F): D) at least one compound selected from the following i) through v): i) Z.sup.1(CR.sup.1R.sup.2OC(O)CR.sup.3CH.sub.2).sub.2 (Formula 1, as described herein); ii) Z.sup.2.sub.(4-x)C[CR.sup.4R.sup.5(R.sup.6).sub.yOC(O)CR.sup.7CH.sub.2].sub.x (Formula 2, as described herein), iii) Z.sup.3.sub.(3-x)CR.sup.8[CR.sup.9R.sup.10(R.sup.11).sub.yOC(O)CR.sup.12CH.sub.2].sub.x (Formula 3, as described herein); iv) O{CR.sup.13R.sup.14C(Z.sup.4.sub.(3-x))[CR.sup.15R.sup.16(R.sup.17).sub.yOC(O)CR.sup.18CH.sub.2)].sub.x}.sub.2 (Formula 4, as described herein); v) a combination of two or more from Formulas 1 through 4 above; E) at least one chlorinated olefin-based polymer and/or at least one functionalized chlorinated olefin-based polymer; and F) at least one styrene-based block copolymer or derivative thereof.

The invention provides a composition comprising the following A)-C): A) one or more monomers and/or oligomers selected from the group consisting of

##STR00001## each R is independently selected from the group consisting of the following; substituted or unsubstituted hydrocarbylenes, and substituted or unsubstituted hetero-hydrocarbylenes, each of the hydrocarbylenes and hetero-hydrocarbylenes having between 4 and 40 carbon atoms and x is any integer equal to or greater than 1; B) at least one chlorinated olefin-based polymer and/or at least one functionalized chlorinated olefin-based polymer; and C) at least one styrene-based block copolymer or derivative.

The invention also provides a composition comprising the following D)-F): D) at least one compound selected from the following i) through v): i) Z.sup.1(CR.sup.1R.sup.2OC(O)CR.sup.3CH.sub.2).sub.2 (Formula 1, as described herein); ii) Z.sup.2.sub.(4-x)C[CR.sup.4R.sup.5(R.sup.6).sub.yOC(O)CR.sup.7CH.sub.2].sub.x (Formula 2, as described herein), iii) Z.sup.3.sub.(3-x)CR.sup.8[CR.sup.9R.sup.10(R.sup.11).sub.yOC(O)CR.sup.12CH.sub.2].sub.x (Formula 3, as described herein); iv) O{CR.sup.13R.sup.14C(Z.sup.4.sub.(3-x))[CR.sup.15R.sup.16(R.sup.17).sub.yOC(O)CR.sup.18CH.sub.2)].sub.x}.sub.2 (Formula 4, as described herein); v) a combination of two or more from Formulas 1 through 4 above; E) at least one chlorinated olefin-based polymer and/or at least one functionalized chlorinated olefin-based polymer; and F) at least one styrene-based block copolymer or derivative thereof.