B29C47/06

ENERGY CABLE HAVING A COLD-STRIPPABLE SEMICONDUCTIVE LAYER
20170330646 · 2017-11-16 · ·

Energy cable comprising, from the interior to the exterior, an electrical conductor, an inner semiconductive layer, an electrically insulating layer made from a thermoplastic material in admixture with a dielectric fluid, and an outer semiconductive layer, wherein the outer semiconductive layer comprises: (i) from 55 wt % to 90 wt % of a copolymer of ethylene with at least one ester comonomer having an ethylenic unsaturation; (ii) from 10 wt % to 45 wt % of a propylene copolymer with at least one olefin comonomer selected from ethylene and an α-olefin other than propylene, said copolymer having a melting point of from 145° C. to 170° C. and a melting enthalpy of from 40 J/g to 80 J/g; (iii) at least one conductive filler; (iv) at least one dielectric fluid; the amounts of (i) and (ii) being expressed with respect to the total weight of the polymeric components of the layer. The outer semiconductive layer is cold-strippable, having an adhesion with the underlying thermoplastic insulating layer which can be tuned so as to obtain a suitable balance between strippability at a temperature ranging from about 0° C. to about 40° C., without applying heat, and stable adhesion with the insulating layer during the cable lifespan.

MULTI-LAYER POLYOLEFIN POROUS MEMBRANE, BATTERY SEPARATOR OBTAINED USING THE SAME, AND METHOD FOR PRODUCING THE SAME

A multi-layer polyolefin porous membrane is disclosed. The membrane includes first and second layers, and a plurality of protrusions including polyolefin. The protrusions have a protrusion width (W) satisfying 5 μm≦W≦50 μm and have a protrusion height (H) satisfying 0.5 μm≦H. The protrusions are randomly disposed on a first side of the membrane, and the protrusions are disposed with a density of not less than 3 protrusions/cm.sup.2 and not greater than 200 protrusions/cm.sup.2. A meltdown temperature of the membrane is not lower than 165° C., an air permeation resistance of the membrane is not greater than 300 sec/100 cc Air, and a thickness of the membrane is not greater than 20 μm.

MARKING STRIP

A marking strip has a plurality of marking elements which are connected to each other by a connecting region. The marking strip having the marking elements is designed to mark electrical devices, in particular electrical devices that can be arranged next to each other such as terminal blocks. Each of the marking elements has a marking plate including at least one writing field which can be provided with information. On the side facing away from the writing field, each of the marking elements has a locking contour which is integrally connected with the marking plate. The marking strip is formed of at least two different plastic materials of different hardness. The locking contour of each marking element is formed of a harder plastic material, and the marking plate is formed of a softer plastic material at least in the region of the writing field. The connecting region between the marking elements is formed of the softer plastic material.

ELECTROSTATIC DISSIPATING MAT
20170283577 · 2017-10-05 ·

An electrostatic mat, wherein the mat comprises at least one electrostatic layer, wherein the at least one layer comprises an elastomeric rubber, wherein the elastomeric rubber comprises 20-100 phr elastomeric polyether, wherein the elastomeric polyether comprises 10-75 wt % ethylene oxide, 20-70 wt % epihalohydrin, and 0-10% vinyloxirane. The mat prevents the generation of voltage when it is walked on and/or dissipates the charge that was generated.

BIAXIALLY ORIENTED POLYOLEFIN FILM WITH HIGH MOISTURE VAPOR BARRIER AND STIFFNESS PROPERTIES

Described are coextruded multi-layer biaxially oriented polyolefin barrier films with improved processability, moisture vapor barrier, and stiffness. The disclosed films comprise a cyclic olefin copolymer (COC) core layer blended with hydrogenated hydrocarbon resin and at least one outer layer having functionality for solvent resistance, heat sealing, or winding, or printing/coatings or adhesion for lamination.

Longitudinal bead molding

An edge-beaded fastener product such as a cushion cover tie-down has a molded profile bead secured to and extending along a flexible strip adjacent a longitudinal edge of the strip. The profile bead has a shoulder or an inboard sidewall extending away from the strip, such as for retaining a clip or hog ring. The flexible strip may have a reinforced region, inboard of the shoulder, in which resin contiguous with resin forming the profile bead encapsulates surface features of the strip. The product is made by molding resin directly onto the strip. Multiple lanes of resin may be molded on a single substrate, which is severed to form individual strips with severed, exposed strip edges.

Tear resistant multilayer film

A tear resistant multilayer film including a stack of polymeric layers that includes first and second layer types. Layers of the first layer type includes a first polymer and the layers of the second layer type includes a second polymer. The first polymer is polyethylene terephthalate or a first ester block copolymer that includes polyethylene terephthalate blocks at a weight percent of the first ester block copolymer of at least 50 percent and further includes glycol-modified polyethylene terephthalate blocks. The second polymer is sebacic acid-substituted polyethylene terephthalate or a second ester block copolymer that includes sebacic acid-substituted polyethylene terephthalate blocks at a weight percent of the second ester block copolymer of at least 50 percent and further includes polyethylene terephthalate blocks or glycol-modified polyethylene terephthalate blocks. The tear resistant multilayer film includes a total of 8 to 300 layers of the first and second layer types.

MDO MULTILAYER FILM

A multilayer film having Machine Direction Orientation (MDO) is prepared by first co-extruding a multilayer film, then stretching the multilayer film in the machine direction at a temperature lower than the melting point of the polyethylene resin that is used to prepare the film. At least one layer of the film is a first polyethylene composition having a density of from about 0.94 to about 0.97 g/cc and at least one second layer is prepared from a polyethylene composition having a lower density than the first polyethylene composition. This disclosure enables the manufacture of films having outstanding barrier properties (low Water Vapor Transmission Rate, WVTR, and low Oxygen Transmission Rate, OTR) and good physical properties.

Multilayered structure and laminate, and method for production of the same

An object of the invention is to provide a multilayered structure having very superior gas barrier properties and being excellent in flex resistance, pinhole resistance, stretchability, thermoformability and interlayer adhesiveness, and having superior durability enabling characteristics such as high gas barrier properties to be maintained even if used with deformation such as flexion and/or stretching, and to provide a laminate in which the multilayered structure is used, and a production method thereof. Provided by the present invention is a multilayered structure in which at least 4 resin-layers constituted with a resin composition containing an ethylene-vinyl alcohol copolymer are contiguously laminated. A single layer of the resin layer has an average thickness of preferably no less than 0.01 μm and no greater than 10 μm. The average thickness is preferably no less than 0.1 μm and no greater than 1,000 μm. When the content of ethylene units of the ethylene-vinyl alcohol copolymer is no less than 3 mol % and no greater than 70 mol %, the saponification degree is preferably no less than 80 mol %.

Methods of making melt-bonded thermoplastic bags with tailored bond strength

One or more implementations of a multi-layered bag with reinforced seals include an outer layer or bag and an inner layer or bag positioned within the outer layer or bag. The multi-layered bag further includes a draw tape positioned near the opening of the multi-layered bag. The draw tape can allow a user to at least partially close the multi-layered bag by drawing the layers of the bag together. The multi-layered bag further includes one or more tape seals that bond the draw tape to layers of the bag. The tape seals can be reinforced and include at least seven plies bonded together. One or more implementations further include methods of forming multi-layered bags with reinforced seals.