Abstract: A cable having one or more electrical conductors or a core of electrical conductors, each electrical conductor or core being surrounded by an insulating composition, essentially free from water tree growth inhibitors, having(i) a polyethylene having a density in the range of 0.860 to 0.940 gram per cubic centimeter; and, based on 100 parts by weight of component (i),(ii) about 0.2 to about 1 part by weight of a homopolymer of propylenewith the proviso that the insulating composition is extruded at a temperature below the melting point of the homopolymer of propylene.

Abstract: Film grade ethylene copolymers are prepared by copolymerizing ethylene with at least one C.sub.3 to C.sub.8 alpha olefin employing a catalyst formed from an organo aluminum activator compound and a precursor composition impregnated in very fine particle sized porous silica, said precursor composition having the formulaMG.sub.m Ti.sub.1 (OR).sub.n X.sub.p [ED.sub.q ]wherein R is a C.sub.1 to C.sub.14 aliphatic or aromatic hydrocarbon radical, or COR' wherein R' is a C.sub.1 to C.sub.14 aliphatic or aromatic hydrocarbon radical; X is selected from the group consisting of Cl, Br, I or mixtures thereof; ED is an electron donor compound; m is .gtoreq.0.5 to .ltoreq.56; n is 0, 1 or 2; p is .gtoreq.2 to .ltoreq.116; and q is .gtoreq.2 to .ltoreq.85; and said organo aluminum activator compound having the formulaAl(R").sub.c X'.sub.d H.sub.ewherein X' is Cl or OR'"; R" and R'" are the same or different and are C.sub.1 to C.sub.14 saturated hydrocarbon radicals; d is 0 to 1.5; e is 1 or 0; and c+d+e=3.

Abstract: An ethylene polymer film forming composition comprising an ethylene polymer and from about 450 to about 6000 ppm preferably 500 to 5000 ppm of metal salt of a fatty acid having from 7 to 22 carbon atoms and from about 300 to 7000 ppm preferably 500 to 4000 ppm of an antiblocking agent.

Abstract: The invention relates to an ethylene polymer plastic composition comprising a narrow molecular weight distribution ethylene polymer, a fatty acid amine and dibenzylidene sorbitol. A method is also provided for maintaining the effectiveness of dibenzylidene sorbitol when used to enhance the optical properties of polymer plastic compositions fabricated from resins produced using Ziegler type catalysts.

Abstract: An improved catalyst suitable for preparing film grade ethylene copolymers formed from an organo aluminum activator compound and a precursor composition impregnated in very fine particle sized porous silica, said precursor composition having the formulaMg.sub.m Ti.sub.1 (OR).sub.n X.sub.p [ED].sub.qwherein R is a C.sub.1 to C.sub.14 aliphatic or aromatic hydrocarbon radical, or COR' wherein R' is a C.sub.1 to C.sub.14 aliphatic or aromatic hydrocarbon radical; X is selected from the group consisting of Cl, Br, I or mixtures thereof; ED is an electron donor compound; m is .gtoreq.0.5 to .ltoreq.56; n is 0, 1 or 2; p is .gtoreq.2 to .ltoreq.116; and q is .gtoreq.2 to .ltoreq.85; and said organo aluminum activator compound having the formulaAl(R").sub.c X'.sub.d H.sub.ewherein X' is Cl or OR"'; R" and R"' are the same or different and are C.sub.1 to C.sub.14 saturated hydrocarbon radicals; d is 0 to 1.5; e is 1 or 0 and c+d+e=3.

Abstract: A process for making film from a narrow molecular weight distribution low density ethylene hydrocarbon copolymer, which process comprises extruding said copolymer through a die gap of greater than about 50 mils. The film exhibits an excellent balance of optical and mechanical properties.

Abstract: A process for making an article comprising (a) a solid substrate and (b) a coating on said substrate, said coating comprising parylene admixed with a sterically hindered phenol,said process comprising diffusing the hindered phenol into the parylene by bringing the hindered phenol into contact therewith and providing sufficient heat to cause the diffusion,and the defined article in the case of those phenols, which are not vaporizable at a temperature of less than about 150.degree. C.