摘要:
The present invention relates to composite materials and the use thereof as energy resistant, for example blast-resistant, materials. Preferred aspects of the invention relate to layered composite panels comprising solid foam materials which have both a blast attenuation function and an anti-ballistic function. In further aspects, the invention provides novel composite panels which are suitable for use as blast resistant and/or anti-ballistic materials. In some examples described, the layered composite panel comprises a polymeric material (10) bonded to a first solid open-cell foam panel (12), and a cured polymeric material (14) penetrates a surface of the first solid open-cell foam panel (12).
摘要:
A two-layer mono-axially oriented film includes a first layer of an opaque beta-nucleated microvoided propylene-based polymer; and a second layer containing a dark pigment that is adapted for use in a thermal printer in which the thermal print-head contacts the exposed surface of the first layer. The dark pigment of the second layer pigment has a color contrasting with the color of the first layer and can contain a carbon black. The first layer includes microvoids and may be made transparent upon the application of heat by collapsing the voids of the first layer or upon the application of ultra-sonic energy.
摘要:
A wetness indicating polymeric film and method of making the film is provided. The method includes feeding a polymer film into a flexographic printing apparatus; printing at least one wetness indicator ink onto a first side of the perforated polymer; and perforating the polymer film by forming a plurality of apertures or enlarged micropores that extend from the first side to the second side. The apertures or enlarged micropores permit a sufficient quantity of an aqueous liquid to pass from the second side through the perforated polymer film to the first side. Upon contact, the aqueous liquid reacts with the wetness indicator ink to cause a color change visible by an unaided human eye. In an absorbent article including the inventive film as a backsheet, the total amount of liquid that passes through the backsheet is negligible and the barrier properties of the backsheet as a whole are not compromised.
摘要:
The present invention relates to the use of an ionic fluoropolymer in its H-form for the formation of an antistatic coating on a non-conductive substrate, and to a cable comprising an outermost non-conductive layer with a coating thereon which comprises an ionic fluoropolymer in its H-form.
摘要:
A two-layer mono-axially oriented film includes a first layer of an opaque beta-nucleated microvoided propylene-based polymer; and a second layer containing a dark pigment that is adapted for use in a thermal printer in which the thermal print-head contacts the exposed surface of the first layer. The dark pigment of the second layer pigment has a color contrasting with the color of the first layer and can contain a carbon black. The first layer includes microvoids and may be made transparent upon the application of heat by collapsing the voids of the first layer or upon the application of ultra-sonic energy.
摘要:
Coating porous material, such as PDMS, with parylene N, C, D, and AF-4 by vapor deposition polymerization is described in which a temperature of the porous material's surface being coated is heated to between 60° C. and 120° C., or 80° C. and 85° C., during deposition. The parylene forms nano roots within the porous material that connect with a conformal surface coating of parylene. In some embodiments, a watertight separation chamber in an integrated microfluidic liquid chromatography device is fabricated by heating tunnels in micro-fabricated PDMS and depositing parylene within the heated tunnels.
摘要:
Composite foams are provided including a metal template and a conformal atomic-scale film disposed over such metal template to form a 3-dimensional interconnected structure. The metal template includes a plurality of sintered interconnects, having a plurality of first non-spherical pores, a first non-spherical porosity, and a first surface-area-to-volume ratio. The conformal atomic-scale film has a plurality of second non-spherical pores, a second non-spherical porosity, and a second surface-area-to-volume ratio approximately equal to the first surface-area-to-volume ratio. The plurality of sintered interconnects has a plurality of dendritic particles and the conformal atomic-scale film includes at least one of a layer of graphene and a layer of hexagonal boron nitride.
摘要:
A method of surface sealing a porous fibrous substrate is provided. According to the method, a porous fibrous substrate possessing a moisture content and a surface with pores is provided. A sealant composition is applied to a surface of the porous fibrous substrate and permitted to penetrate the surface pores of the porous fibrous substrate and undergo cure while participating in a foaming reaction with the moisture content to establish a water-resistant polymeric foam sealant impregnated into the porous fibrous substrate. The water-resistant polymeric foam sealant contains a polyurethane and/or polyurea.
摘要:
The present invention provides a thermoplastic molding composition comprising A) 60 to 99 percent by weight (pbw) aromatic poly(ester) carbonate having a weight-average molecular weight of at least 25,000, B) 1 to 20 parts per 100 parts resin (phr) graft (co)polymer having a core-shell morphology, comprising a grafted shell that contains polymerized alkyl(meth)acrylate and a composite rubber core that contains interpenetrated and inseparable polyorganosiloxane and poly(meth)alkyl acrylate where the weight ratio of polyorganosiloxane/poly(meth)alkylacrylate/ grafted shell is 70-90/5-15/5-15, C) 2 to 20 phr phosphorus-containing compound, and D) 0.1 to 15 phr boron compound having average particle diameter of 2 to 10 microns.