A polyolefin resin foam sheet includes a resin mixture as a base resin, the resin mixture including 0% by mass or more and 30% by mass or less of polyethylene resin, 30% by mass or more and 80% by mass or less of polypropylene resin, and 20% by mass or more and 40% by mass or less of a polyolefin elastomer, the polyolefin resin foam sheet fulfilling a range of −35% or more and 0% or less for dimensional changes in machine and transverse directions under heating for 10 minutes at a temperature 20° C. higher than a maximum melting point that is a highest melting peak in a differential scanning calorimetry.

A laminated plate has a metallic conductive layer layered on one surface or each surface of an insulating substrate, the insulating substrate contains a fluorine resin and a polymer of an alkoxysilane, and the fluorine resin is dispersed in the polymer of the alkoxysilane.

The present disclosure provides a fuel-impermeable structural unit for use as a structural element of a fuel tank, including a multi-plies structure made of one or more composite material and polymers, and, a sealing polymeric film structurally bonded to and coating the entire surface of at least one face of the multi-plied structure. The polymeric film is integrated with an underlying external layer of said multi-plies structure, is impermeable to the fuel, is not reactive with the fuel, and can bind to an adhesive for fixing one or more rigid elements thereto.

Disclosed is a vibrating diaphragm assembly, which relates to the technical field of electroacoustic products. The vibrating diaphragm assembly comprises a vibrating diaphragm, wherein the vibrating diaphragm comprises a middle part and a folding ring part surrounding the periphery of the middle part; the vibrating diaphragm comprises a vibrating diaphragm substrate layer and a silica gel layer; the silica gel layer is at least partially combined with the vibrating diaphragm substrate layer; the vibrating diaphragm substrate layer is a high molecular material layer; the silica gel layer is combined on the surface of the folding ring part; and the silica gel layer and the high molecular material layer are formed through injection molding. The vibrating diaphragm assembly of the present invention can improve the compliance of a vibrating diaphragm by arranging a silica gel layer on the surface of a folding ring part and compounding the silica gel layer and a high molecular material layer, improve the chemical stability and the temperature adaptability thereof, optimize the acoustic performance, and improve the product qualification rate.

Provided is a laminated body that has high adhesiveness between a resin body containing a fluorine-based resin and a silicone gel and that can be attached to and detached from an adherend for use. A laminated body comprising: a resin body; and a gel body, wherein the resin body comprises a fluorine-based resin, and the gel body comprises a silicone gel and lipophilic silica particles.

Systems, devices, and methods including: a first layer; a second layer; a pocket formed between the first layer and the second layer to receive a fingertip of a user; and an elastic layer disposed over a portion of the first layer or the second layer to secure the fingertip of the user.

A dressing includes a drape, a pressure-sensitive acrylic-based adhesive on a skin-facing surface of the drape, an island of absorbent material, a silicone gel backing film, and a silicone gel on the silicone gel backing film. The drape is a thin film capable of maintaining a negative pressure underneath the drape upon application of a vacuum. The island of absorbent material has a smaller area than the drape and is applied onto the skin-facing surface of the drape. The silicone gel backing film has a frame shape and a smaller footprint than the drape and a larger footprint than the island of absorbent material.

A light-permeable heat protection element having a first and a second support member and having an intermediate layer between the first and the second support member. The intermediate layer has a cured alkali silicate gel formed of an aqueous alkali silicate solution and a silicon dioxide compound. The alkali silicate gel of the intermediate layer thereby has a molar ratio of silicon dioxide (SiO.sub.2 to alkali metal oxide (M.sub.2O) greater than 4. Furthermore, the alkali silicate gel has 0.05 to 0.14 weight percent of lithium silicate.

A selectively repositionable mat having a liquid-absorbing layer backed by a moisture impermeable backsheet having peripheral margins including oppositely disposed, laterally extending side margins each comprising a longitudinally extending V-fold containing a pressure-sensitive adhesive applied between two opposed surface portions of the underside of the backsheet. The V-fold can open to the outside when configured as the top part of a Z-fold disposed above the backsheet or can open to the inside when configured as a single fold disposed below the backsheet, but is desirably configured so as to permit repositionable attachment of the mat to an underlying surface or substrate for which the selectively releasable, pressure-sensitive adhesive demonstrates sufficient tackiness to hold the mat in place relative to the substrate during normal use.

Provided is a laminate having, on a substrate, a gel layer which is excellent in heat resistance, has low elastic modulus, low stress and is excellent in stress buffering properties and flexibility, is soft and excellent in holding property of electronic components before curing, and after curing, the gel layer is changed to a hard cured layer which is higher in shape retention and excellent in mold releasability than before curing, and a method for manufacturing the same. Also provided is a method for manufacturing an electronic component in which use of the laminate makes it difficult to cause problems such as deposits of silicone gel or a cured product thereof to a substrate or an electronic component, and makes it difficult to cause problems of defects or defective products of the electronic component. The laminate includes a curing reactive silicone gel layer on at least one type of substrate.