摘要:
Materials and methods for mitigating passive intermodulation. A membrane for reducing passive intermodulation includes a first polymeric layer, a second polymeric layer, and a continuous metal layer encapsulated between the first and second polymeric layers. A self-adhesive radio frequency barrier tape includes a waterproof polymeric top layer, a metal-containing layer adhered by an adhesive layer to the polymeric top layer, a pressure sensitive adhesive layer adhered to the metal-containing layer, and a release liner on a bottom surface of the pressure sensitive adhesive layer. A method of mitigating passive intermodulation includes passing a probe over an area of interest, the probe being sensitive to an intermodulation frequency of interest, and identifying a suspected source of passive intermodulation when the amplitude of the probe output exceeds a threshold at the frequency of interest. The method further includes covering the suspected passive intermodulation source with a radio frequency barrier material.
摘要:
As described herein, the invention includes a building underlayment sheet that comprises an underlayment lamina having a top surface and a bottom surface. The bottom surface includes an interior portion and a selvage portion that extends from the interior portion of the bottom surface to a terminal distal edge of the sheet and the interior portion of the bottom surface bears a self adhesive layer. The selvage portion of the bottom surface bears a bonding composition that is capable of bonding to a top surface of a second underlayment lamina to form a full lap joint. In some embodiments, the self adhesive layer includes an asphalt, a polymer such as poly(styrene-butadiene-styrene)(SBS), and a tackifier, and/or the bonding composition includes asphalt, a polymer such as poly(styrene-butadiene-styrene), ground tire rubber (GTR), and tackifier. Also included are building assemblies that include the application of one or more of the underlayment sheets to a building surface, such as a roof surface and methods of installing the underlayment and waterproofing a roof surface.
摘要:
In a method for manufacturing a dishwasher having at least one component and at least one bitumen mat provided on the component for noise deadening and/or sound insulation of the component, a usable, flowable and reactively-hardenable bituminous mixture is applied upon the bitumen mat and/or component such as to form at least one adhesive bead. The adhesive bead is partly surrounded by at least one area which is free of the reactively-hardenable bituminous mixture. Before the hardening of the bituminous mixture, the component and the bitumen mat are pressed together and thereby glued to one another.
摘要:
Disclosed is composition and in particular a rubberized asphalt composition comprising asphalt, an elastomeric polymer, and an acrylic copolymer, a method to make the composition and uses thereof, useful in roofing underlayment. The underlayment products have improved adhesion at low temperatures.
摘要:
A reinforcement material includes a resin layer and a restraining layer. The resin layer contains a resin component and a foaming agent, and serves as a reinforcement layer for reinforcing an object. The restraining layer is disposed on the resin layer. The reinforcement layer contains a matrix resin obtained by curing the resin component and a plurality of cells generated by foaming the foaming agent. A ratio of the total area of the plurality of cells in a cross section of the reinforcement layer is 83% or more, and an elastic modulus of the matrix resin of the reinforcement layer is 1.4 GPa or more.
摘要:
Provided is a self-adhesive waterproof sheet with a modified synthetic rubber and more particularly, the self-adhesive waterproof sheet with a modified synthetic rubber includes an asphalt compound layer; a protective film layer that is formed on the asphalt compound layer and is oriented in two directions with respect to elongation by mixing high density polyethylene (HDPE) and methallaocene low density polyethylene (M.PE) at a ratio of 30 wt % to 70 wt % :30 wt % to 70 wt %; and a release sheet formed to be detachably attached to a lower portion of the asphalt compound layer.
摘要:
A construction composite comprising a construction article having a planar surface and a non-woven layer of pressure-sensitive adhesive disposed on the planar surface.
摘要:
Described is a skid-resistant roofing underlayment that, in its most basic form, includes three layers—a flexible substrate layer, an adhesive layer and a release liner layer. The flexible substrate comprises a woven polyolefin mesh that includes a first plurality of polyolefin tapes extending in a major direction interwoven with a second plurality of polyolefin tapes extending in a cross direction. The adhesive layer includes a modified bitumen pressure sensitive adhesive with a sufficient cohesive strength to prevent exudation of the adhesive through the flexible substrate at elevated temperatures.
摘要:
Non-limiting embodiments of the present disclosure relate to a method comprising: obtaining asphalt shingle waste (ASW) and performing grinding, screening, and separating steps on the ASW. In some embodiments, granules are removed from the ASW. In some embodiments, the method transforms ASW into ASW powder. In some embodiments, the ASW powder is formed into a plurality of briquettes. In some embodiments, at least one of: the ASW powder, the plurality of briquettes, or any combination thereof is fed into a mixing process that results in an ASW powder filled coating. In some embodiments, the ASW powder is formed into an adhesive composition.
摘要:
A bituminous composition is used as an adhesive binder. The bituminous composition has at least one acidic additive of general formula (I): R—(COOH)z in which R is a linear or branched, saturated or unsaturated hydrocarbon-based chain having from 4 to 68 carbon atoms, preferably from 4 to 54 carbon atoms, more preferentially from 4 to 36 carbon atoms and z is an integer ranging from 1 to 4, preferably from 2 to 4.