Abstract: The disclosure of this application is directed to water-curable, silane modified thermoplastic polymers, which are particularly useful as extrudates about wires and cables providing insulation or jacketing thereon, produced by reacting a mixture containing an organo titanate and a thermoplastic polymer having pendant silane moieties.

Abstract: The disclosure is directed to preformed, reactive catalysts, which are the reaction products of a mixture containing an organo titanate, a polyol and a monohydric alcohol. These catalysts can be admixed with alkylene-alkyl acrylate copolymers to provide compositions which can be extruded about electrical wires and cables and cured, at improved cure rates, to crosslinked products characterized by improved physical properties.

Abstract: The disclosure of this application is directed to water-curable, azide sulfonyl silane modified, alkylene-alkyl acrylate copolymers which are particularly useful as coverings about wires and cables providing insulation or jacketing thereon having improved elongation properties.

Abstract: Electrically conductive compositions comprising an ethylene polymer, a mineral filler and carbon black having a surface area greater than about 500 m.sup.2 /gram, these compositions being useful as extrudates about electrical conductors providing conductive shields thereon.

Abstract: A fence structure is described consisting of modular panels mounted on posts. The modular panels are of thermoplastic or thermoset material having a rail portion and a connector at each end for fitting over the posts. The connector has an integral expansion joint in its central passage and each connector is offset in opposite directions to the longitudinal center of the panel to provide a hinged effect with the connectors of adjacent panels in the fence. The construction is readily adaptable to sloping ground and variation in height between panels and provides simplified installation by easy alignment.

Abstract: Semi-conductive compositions, based on ethylene-vinyl acetate copolymers or chlorinated products thereof, containing carbon black, a silicone compound and an interface crosslink inhibitor, such as a phenol, a quinone, a thiazole or a thiuram sulfide, which find utility as semi-conductive layers about crosslinked polyolefin substrates of electrical conductors.

Abstract: Water-curable, silane modified chlorosulfonated olefinic polymers, particularly desirable for use as coverings about wires and cables, produced by reacting a mixture containing a chlorosulfonated olefinic polymer and a hydrolyzable silane having cyclic oxygen, sulfur or nitrogen functionality.

Abstract: The disclosure of this application relates to compositions based on alkylene-alkyl acrylates and silanol condensation catalysts which are useful in the preparation of water-curable, silane modified alkylene-alkyl acrylate copolymers, capable of extrusion about wires and cables.

Abstract: A method for determining the optimum component ratios in an exothermic process for producing polyurethane foam is described which consists of continuously measuring the temperature differential with respect to time and then determining the optimum component ratios by comparing the maximum value of each of the sequential temperature differential peaks and the times at which they occur.

Abstract: A method of converting a continuous olefin polymerization reaction catalyzed by a Ziegler-type catalyst into one catalyzed by a chromium-based catalyst, without the need of emptying and recharging the polymerization reactor, by adding a hydroxyl-containing compound to the reactor containing the Ziegler-type catalyst to interact with such catalyst before the chromium-based catalyst is introduced into the reactor.

Abstract: The disclosure of this application is directed to a composition, devoid of added mineral filler, comprising an ethylene polymer and an organo titanium chelate as a water treeing inhibitor. The compositions can be extruded about electrical conductors providing insulation thereon which is resistant to deterioration in the presence of moisture and/or an electrical field.

Abstract: The disclosure of this application is directed to a composition comprising a polysiloxane and an organo titanate, water curable, silane modified alkylene-alkyl acrylate copolymer produced therefrom and flame retardant compositions, devoid of halogenated flame retardant additives, based on water curable, silane modified alkylene-alkyl acrylate copolymers.

Abstract: Reaction products of a difunctional compound and an organotitanate, process for the preparation thereof and the use of these reaction products as crosslinking agents in the preparation of cured products based on alkylene-alkyl acrylate copolymers. The cured products are especially useful as protective coatings about wires and cables.

Abstract: The disclosure of this application is directed to a composition which serves to improve the water-treeing resistance of polymeric compositions comprising a hydrocarbon-substituted diphenyl amine and a high molecular weight polyethylene glycol. Polymeric compositions containing the water-tree retardant additives are useful as extrudates about electrical conductors.

Abstract: Relatively stable masterbatch compositions are provided comprising a matrix having a polysiloxane dispersed therein, prepared by admixing a solid or liquid matrix, a monomeric silane and a silane condensation catalyst with the result that the monomeric silane condenses to a polysiloxane which is dispersed throughout the matrix per se or as a reactant therein. The masterbatch composition can be admixed with alkylene-alkyl acrylate copolymers in the presence of an organic titanate, to produce water-curable compositions, containing water-curable, silane modified alkylene-alkyl acrylate copolymers, which are useful as extrudates about wires and cables providing protective coatings thereon.

Abstract: This invention relates to water-curable, silane modified copolymers of an alkyl acrylate and a monomer having the formula: ##STR1## wherein X is hydrogen or chlorine and Y is chlorine, a phenyl radical or cyano. The water-curable, silane modified copolymers have enhanced properties which makes them suitable for use as extrudates, serving as jacketing and insulation about wire and cables.

Abstract: Flame retardant additive comprising alumina trihydrate and a methyl hydrogen polysiloxane which when added to ethylene polymers provide compositions which have improved flame retardant properties, have reduced gas evolution, do not drip or give off noxious gases on burning and are particularly useful as jacketing material about wire and cables.

Abstract: Organo siloxanes which, in conjunction with organic peroxides, serve as vulcanizing or crosslinking agents for polymers, prepared by reacting a fatty alcohol, water and methylvinyldichlorosilane or a mixture of methylvinyldichlorosilane and dimethyldichlorosilane.

Abstract: Electrically conductive compositions comprising an ethylene polymer, a mineral filler and carbon black having a surface area greater than about 500 m.sup.2 /gram, these compositions being useful as extrudates about electrical conductors providing conductive shields thereon.

Abstract: This invention provides an improved method for employing a plasma-arc cutting torch to cut a metal plate. The improvement consists in operating the torch with its lower portion submerged in a layer of water provided over the workpiece. In order to allow automatic adjustment of the torch to the appropriate working height above the workpiece, a mechanism is provided for mounting the torch with respect to the support carriage which guides its horizontal path. This mounting mechanism is such as to allow relative up and down movement between the torch and the support carriage and includes a detecting mechanism including a frame and vertical slides on which the cutting torch is secured so that when the mounting mechanism is lowered to the point where the torch touches the metal plate, the detecting mechanism communicates a signal for the upward movement of the mounting mechanism thereby raising the torch to a predetermined cutting distance from the metal plate.