The invention relates to a composition comprising a) a thermoplastic matrix polymer based on one or more ethylenically unsaturated polymerizable monomer(s), wherein the thermoplastic polymer is selected from the group consisting of polyolefins, polystyrene, polyacrylates, ethylene-vinylacetate copolymer, and copolymers and blends of the aforementioned, b) an inorganic flame retardant, c) a polymer based on one or more ethylenically unsaturated polymerizable monomers and having a plurality of alkoxysilane and/or acetoxysilane groups covalently linked to the polymer, wherein the ethylenically unsaturated polymerizable monomers of component c) are different or have a different composition than the ethylenically unsaturated monomer(s) of component a) and d) a clay.

An insulated electric wire includes a conductor and an insulating layer. This insulating layer is made of a resin composition containing a base polymer and a metallic hydroxide. The base polymer contains ethylene-vinyl acetate copolymer and ethylene-(-olefin) copolymer. The -olefin is a non-polarized monomer, its melting point is equal to or lower than 70 C. A vinyl-acetate total content of the base polymer is equal to or less than 19 mass %. The resin composition contains the ethylene-(-olefin) copolymer, a content of which is equal to or more than 20 parts by mass and equal to or less than 70 parts by mass per 100 parts by mass of the base polymer, and contains the metallic hydroxide, a content of which is equal to or more than 30 parts by mass and equal to or less than 150 parts by mass per 100 parts by mass of the base polymer.

A cable intended for use in a nuclear environment includes one or more conductors, a longitudinally applied corrugated shield surrounding the one or more conductors, and a cross-linked polyolefin jacket layer surrounding the longitudinally applied corrugated shield. The cable conducts about 5,000 volts to about 68,000 volts in use and is radiation resistant and heat resistant. The cable comprises a life span of about 40 years or more when measured in accordance with IEEE 323. Methods for making a cable and a nuclear reactor utilizing such a cable are also provided.

The present disclosure relates to insulation. Teachings thereof may be embodied in a solid insulation material, especially in tape form, the use thereof in a vacuum impregnation process and to an insulation system produced therewith, and also an electrical machine comprising the insulation system, especially for the medium- and high-voltage sector, namely for medium- and high-voltage machines, especially rotating electrical machines in the medium- and high-voltage sector, and to semifinished products for electrical switchgear. For example a solid insulation material with an anhydride-free impregnating agent may include: a carrier; a barrier material; a curing catalyst; and a tape adhesive. The curing catalyst and the tape adhesive are inert toward one another but react under the conditions of a vacuum impregnation process if combined with an anhydride-free impregnating agent having gelation times of 1 h to 15 h at impregnation temperature. The tape adhesive is free of oxirane groups and includes at least two free hydroxyl groups.

The present invention is a resin composition including: a resin component; zinc oxide; and an acetic acid remover, wherein the resin component includes an ethylene-vinylacetate copolymer and a content of the ethylene-vinylacetate copolymer in the resin component is greater than or equal to 10% by mass, wherein the acetic acid remover is an acid acceptor, a nitrogen-containing aromatic heterocyclic compound having a mercapto group, or a combination thereof, and wherein a mass ratio of the zinc oxide to the ethylene-vinylacetate copolymer is greater than or equal to 0.06 and less than or equal to 0.20.

Submersible transducer includes a transducer housing configured to be submerged within an aqueous liquid and a pressure sensor operable to obtain data for determining a pressure of the aqueous liquid. The pressure sensor may be disposed within the transducer housing. The submersible transducer also includes a submersible cable having an electrical conductor and a venting tube operably coupled to the pressure sensor. The pressure sensor uses an atmospheric pressure of an external environment that is detected through the venting tube to determine the pressure of the aqueous liquid. The submersible cable also includes a cable jacket and an inner layer that is surrounded by the cable jacket. The inner layer surrounds the electrical conductor and the venting tube. The inner layer includes a non-hygroscopic polymer that is more resistant to absorbing the aqueous liquid than the cable jacket.

A polymer composition that comprises an olefinic polymer, a flame retardant that includes a halogen-free mineral filler, and a compatibilizing agent is provided. The halogen-free mineral filler constitutes from about 20 wt. % to about 80 wt. % of the composition. The composition may exhibit a degree of water uptake of about 5 wt. % or less after being immersed in water for seven days at a temperature of 23 C.

A processing technology of a busbar for a new energy automobile comprises the following steps: first step: punching a raw material blank of a busbar to obtain a busbar base material; second step: spraying high-temperature-resistant insulating paint on part or whole of an outer surface of the busbar base material obtained in the first step; and third step: drying to obtain a busbar. The busbar of the present invention has simple processing technology.

A method for sealing a bundle of wires includes providing an adhesive material having a viscosity of less than about 300 Pa.Math.s at the installation temperature. The method further includes forming a structure from the adhesive and inserting a plurality of wires into the structure. A first amount of heat is applied to the structure in a first heating operation. The first amount of heat being higher than an ambient temperature and lower than a softening temperature of the structure. Subsequently, a second amount of heat is applied in a second heating operation to the adhesive structure to thereby fully melt the adhesive structure and cause the adhesive of the structure to fill voids between the plurality of wires to thereby seal the wires. Application of the first amount of heat during the first operation to the structure facilitates improved melt uniformity of the structure during the second heating operation.

Polymeric compositions comprising a blend of high-density polyethylene (HDPE) with ethylene vinyl acetate (EVA), and optionally with a carbon black and/or one or more other additives, where the polymeric compositions have certain melt-index and vinyl-acetate-content ranges to improve melt strength and processability. Such polymeric compositions can be employed in manufacturing coated conductors, such as fiber optic cables.