摘要:
A tubing segment is provided for construction of tubing for transporting a fluid, and a tubing connector, tubing for carrying a fluid, the tubing comprising a plurality of tubing segments, a production or injection installation comprising a subsurface well and tubing, methods of manufacturing tubing, methods of connecting two tubing segments, and a method of producing mineral oil or natural gas from a subsurface reservoir, such as a well.
摘要:
The present invention relates to an adhesive polyethylene composition comprising (A) from 60 to 90 wt % of a non-elastomeric polyethylene; (B) from 9.0 to 38 wt % of an ethylene based elastomer being a copolymer of ethylene and alpha-olefin comonomer units having from 4 to 12 carbon atoms; wherein onto component (A) or components (A) and (B) an acid grafting agent (C) has been grafted in an amount of from 0.01 to 3.0 wt %, all based on the total weight of the adhesive polyethylene composition, a multi-layer structure comprising said adhesive polyethylene composition and the use of said adhesive polyethylene composition for the production of a multi-layer structure.
摘要:
A biocompatible tube and fitting system that can be used in a liquid chromatography system is described. The tube can have a polymer tip and can be used in conjunction with one or more fitting assembly.
摘要:
A wire harness including a number of wires, an outer sheath layer, and an anisotropic fabric positioned between the wires and outer sheath is provided. The anisotropic fabric is formed from combining a number of more rigid, monofilament fill strands and a number of less rigid multifilament warp strands. The fill strands may be formed from a single filament of at least five hundred fifty (550) denier while the warp strands may be formed from a series of polyester threads of at least two hundred (200) denier. The anisotropic layer permits limited rotation of the inner wires relative to the outer sheath when exposed to friction and pressure and is not subjected to significant creep during use.
摘要:
The invention is directed to polyethylene having a multimodal molar mass distribution, having a density in the range from 940 to 948 kg/m3, having an MFI 190/5 in the range from 1.0 to 3.5 g/10 min and comprising from 45 to 47% by weight of an ethylene copolymer A and from 53 to 55% by weight of an ethylene copolymer B, where all percentages are based on the total weight of the composition wherein ethylene-1-butene copolymer A has a viscosity number in the range between 70 and 110 cm3/g and a density between 960 and 973 kg/m3. The polyethylene is suitable to be applied in pipe coating applications.
摘要:
A pipe- or tube-shaped article having an innermost layer is disclosed which comprises a polyolefin composition comprising a polyolefin comprising ethylene and an α-olefin. The article provides long lifetime, highly abrasion-resistant pipes for mining and other transportation uses. Also disclosed are methods for preparing the article and transporting abrasive materials.
摘要:
The present invention provides a method for producing a coated stainless steel member, comprising: performing Wood's strike nickel plating on a stainless steel substrate, and then performing cationic electrodeposition on a formed Wood's strike nickel plating layer.
摘要:
One aspect of the invention provides an energy dissipative tube including: a length of corrugated stainless steel tubing; a conductive resin layer adjacent to the outside of the tubing; and an insulative resin layer adjacent to the conductive layer. Another aspect of the invention provides an energy dissipative tube consisting of: a length of corrugated stainless steel tubing; a conductive thermoplastic polymer layer adjacent to the outside of the tubing, the conductive thermoplastic polymer layer having a volume resistivity of less than about 106 ohm-cm; and an insulative resin layer adjacent to the conductive layer.
摘要:
The invention relates, on the one hand, to a composite material composition capable of neutralizing acid compounds and of being used under high temperature conditions, said composition being a mixture of a polymer material with a predetermined amount of reactive fillers, the mass fraction of the chemically active products ranges between 4 and 40% and the polymer material is selected from the vinylidene fluoride copolymers family, comprising a vinylidene fluoride monomer, and at least one monomer being selected from among the following monomers: hexafluoropropylene, perfluoro(methylvinyl)ether, perfluoro(ethylvinyl)ether, perfluoro (propylvinyl)ether, tetrafluoroethylene, perfluorobutylethylene, fluoropropylene, chlorotrifluoroethylene, chlorodifluoroethylene, chlorofluoroethylene, trifluoroethylene, and the monomer with the following formulation: CH2═CH—CF2—(CF2)4—CF3 and, on the other hand, to a pipe comprising at least one sheath made from the composite material composition.
摘要:
One aspect of the invention provides an energy dissipative tube including: a length of corrugated stainless steel tubing; a conductive resin layer adjacent to the outside of the tubing; and an insulative resin layer adjacent to the conductive layer. Another aspect of the invention provides an energy dissipative tube consisting of: a length of corrugated stainless steel tubing; a conductive thermoplastic polymer layer adjacent to the outside of the tubing, the conductive thermoplastic polymer layer having a volume resistivity of less than about 106 ohm-cm; and an insulative resin layer adjacent to the conductive layer.