摘要:
A composition useful as a wire or cable insulation or sheathing layer, the composition comprising (i) an inorganic flame retardant, e.g., aluminum trihydroxide (ATH), (ii) ethylene ethyl acetate (EEA) or ethylene butyl acrylate (EBA), (iii) a homogeneous polyethylene, (iv) an ethylenic resin modified with an organo-functional group, e.g., maleic anhydride (MAH) grafted polyethylene, (v) a silicone polymer, and optionally, (vi) a smoke suppressant. The insulation or sheathing layer comprising the composition of this invention exhibits good resistance to stress and/or thermal cracking.
摘要:
Magnesium oxide (MgO) compounded into a polymer can subsequently be hydrated in-situ within the polymer to form magnesium hydroxide. In the case of silane-based or peroxide-based crosslinkable resins, the MgO hydration and polymer crosslinking can be done in a single process step, or in sequential steps. In the case of non-crosslinkable compounds, hydration can be carried out after compounding (no crosslinking step). In all cases, steam CV, sauna, or hot water bath are options for hydration. This approach enables preparation of polymer compounds that are flame retarded with metal hydrates yet free of the traditional limitations posed by shelf instability, extrusion scorch, undesired dehydration, and processing temperature limitations posed by metal hydrates.
摘要:
The present invention is a crosslinked automotive wire comprising a metal conductor, a flame retardant insulation layer surrounding the metal conductor, and optionally, a wire jacket surrounding the insulation layer. The automotive wire passes the specifications of one or more several automotive cable testing protocols: (a) SAE J-1128, (b) ISO-6722, (c) LV 112, (d) Chrysler MS-8288, and (e) Renault 36-36-05-009/-L. In particular, the flame retardant insulation layer is prepared from a crosslinkable thermoplastic polymer and a metal carbonate. The flame retardant composition for making the insulation layer demonstrates economic and processing improvements over conventional solutions. The present invention is also a method for preparing a low tension primary automotive wire and the automotive wire made therefrom.
摘要:
The present invention is a crosslinked automotive wire comprising a metal conductor, a flame retardant insulation layer surrounding the metal conductor, and optionally, a wire jacket surrounding the insulation layer. The automotive wire passes the specifications of one or more several automotive cable testing protocols: (a) SAE J-1128, (b) ISO-6722, (c) LV 112, (d) Chrysler MS-8288, and (e) Renault 36-36-05009/-L. In particular, the flame retardant insulation layer is prepared from a crosslinkable thermo-plastic polymer and a metal carbonate. The flame retardant composition for making the insulation layer demonstrates economic and processing improvements over conventional solutions. The present invention is also a method for preparing a low tension primary automotive wire and the automotive wire made therefrom.
摘要:
An article of manufacture comprising, as a first component, a plurality of electrical conductors, each surrounded by one or more layers comprising a mixture of (i) one or more polyolefins; (ii) a first antioxidant selected from the group consisting of poly(2,2,4-trimethyl-1,2-dihydroquinoline); the reaction product of diphenylamine and acetone; the reaction product of diphenylamine, acetone, and formaldehyde; and mixtures thereof; and (iii) a second antioxidant selected from the group consisting of 2,2'-oxalyldiamidobis ethyl-3-(3,5-di-tert-butyl-4-hydroxyphenyl)-propionate!; 1,2-bis(3,5-di-tert-butyl-4-hydroxyhydrocinnamoyl)-hydrazine; and mixtures thereof; and, as a second component, hydrocarbon cable filler grease within the interstices between said surrounded conductors.
摘要:
Cross-linkable polymeric compositions comprising an ethylene-based polymer, an organic peroxide, an optional cross-linking coagent, and an antioxidant. Such cross-linkable polymeric compositions are prepared by imbibing at least a portion of the organic peroxide, the optional cross-linking coagent, and the antioxidant into the ethylene-based polymer. Such cross-linkable polymeric compositions can be employed in forming coated conductors.
摘要:
The disclosure is directed to a dielectric fluid. The dielectric fluid includes an algae oil. The algae oil includes a natural algae antioxidant. The natural algae antioxidant is selected from β-carotene, astaxanthin, tocopherol, polyunsaturated triglycerides, and combinations thereof.
摘要:
The disclosure is directed to a plasticizer system with improved electrical properties. The plasticizer system includes (a) a primary plasticizer consisting of an epoxidized vegetable oil and (b) a secondary plasticizer consisting of an epoxidized fatty acid ester, where the primary plasticizer is present in an amount greater than 50% by weight of the total plasticizer system weight.
摘要:
This invention relates to a fiber reinforced plastic material with improved flexibility and high tensile strength for use in optic cables. The strength member composition comprises a polypropylene based thermoplastic resin, a continuous fiber having a modulus greater than 80 PGa, and talc.