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.

Embodiments of the present disclosure are directed to an adhesive asphalt emulsion. The adhesive asphalt emulsion can be prepared in liquid form and applied to a material, such as a film or fabric, to create a self-adhering membrane. In some embodiments, the adhesive can be water vapor permeable, and can be applied in a continuous layer to a membrane. The adhesive asphalt emulsion can be prepared, applied, and in service at low temperatures.

The invention provides a waterproofing membrane which does not require a removable release sheet but which nevertheless bonds to post-cast concrete and facilitates water-tight sealing at membrane-to-membrane overlaps. The waterproofing membrane comprises a carrier and pressure-sensitive adhesive (PSA) layers, an inorganic particle layer having particulate bodies which are partially embedded in the PSA and which have an average particle size less than the average thickness of the PSA layer, and an anti-submarining nano-silica-containing coating layer attached to un-embedded portions of the inorganic particles to prevent total embedding into the PSA when the membrane is rolled or unrolled, whereby water-tight seams are facilitated between overlapped portions of adjacently installed waterproofing membranes, and whereby the water-tight seam is achieved preferably using only detailing or waterproofing tape and without the additional use of a liquid primer, mastic, or other coating.

The present invention provides a UV-crosslinked hot-melt pressure-sensitive adhesive used for a polyvinyl chloride (PVC) insulation adhesive tape, made by mixing a polymer of vinyl monomers, functional monomers, special soft monomers, and photoinitiators with a tackifying resin and an antioxidant in certain proportions; the composition of the photoinitiator polymer contains a copolymer of one or more polymerizable photosensitive initiators and acrylate monomers, or a mixture of oligomers of one or more polymerizable photosensitive initiators and acrylate high polymers. The PVC adhesive tape made using such a pressure-sensitive adhesive has the advantages of excellent mechanical properties, bonding performance, and resistance to high temperatures, and is energy-saving and environmentally friendly; the present invention overcomes the defect of the prior art that a relatively long thermal oven is needed to volatilize a solvent in the glue when coating a PVC adhesive tape, which is applicable for wrapping and strapping cable bundles in different positions of the body of an automobile, can satisfy the requirement for uses on high temperature-resistant positions of an engine inside the automobile, and reaches a long-term temperature resistance level of 125 C.

The present invention provides an optically clear adhesive sheet with excellent transparency using a thermosetting polyurethane composition that has excellent flexibility and is capable of giving a thick film. The optically clear adhesive sheet of the present invention contains: a cured product of a thermosetting polyurethane composition, the thermosetting polyurethane composition containing a polyol component, a polyisocyanate component, and a tackifier, the thermosetting polyurethane composition having a tackifier content of 5 to 21 wt %.

The present invention relates to a method for manufacturing a high temperature-resistant polyvinyl chloride adhesive tape, and more particularly to a method and a production process for manufacturing a high temperature-resistant adhesive tape by applying a UV-crosslinkable hot-melt pressure-sensitive adhesive to a high temperature-resistant polyvinyl chloride film. The high temperature-resistant polyvinyl chloride film is a high temperature-resistant material containing a liquid polymeric plasticizer, a solid polymeric plasticizer, and a heat stabilizer. The hot-melt pressure-sensitive adhesive can be directly coated onto the high temperature-resistant polyvinyl chloride film at 130-150 C.; and then crosslinked and cured by UV irradiation, to make a high temperature-resistant polyvinyl chloride adhesive tape. Compared with conventional polyvinyl chloride adhesive tapes, the high temperature-resistant polyvinyl chloride adhesive tape manufactured using the method for manufacturing a novel high temperature-resistant polyvinyl chloride adhesive tape provided in the present invention has the advantages of non-volatility and resistance to high temperature and is highly environmentally friendly.

A novel hot-melt adhesive and a preparation method thereof are disclosed, and in particular a hot-melt adhesive for bonding aluminum, stainless steel or other metal materials and PVC plastics is disclosed. The specific nylon-type copolyamide is firstly prepared by designing specific raw materials and percentage thereof, and in combination with favorable bonding properties of the nylon-type copolyamide for metals and favorable bonding characteristics of the perchloroethylene resin for PVC, a double screw extruder is utilized to perform sufficient melt blending on the nylon-type copolyamide and the perchloroethylene resin under the synergistic actions of related aids, so that the obtained novel hot-melt adhesive has favorable bonding properties for both metals and PVC.

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.

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.

The invention relates to a joining method wherein a first surface (2) of a first adherend (1) and a second surface (8) of a second adherend (6) are bonded to one another by provision of an adhesive tape (3) having a first side (4) and a second side (7), there being disposed on the first side (4) a first activatable adhesive and on the second side (7) a second activatable adhesive, the latter being an activatable pressure-sensitive adhesive, the first side (4) of the adhesive tape (3) is contacted with the first surface (2) of the first adherend (1) to produce a preliminary assembly, the second surface (8) of the second adherend (6) is joined in a joining movement to the second side (7) of the adhesive tape (3), the joining movement having a tangential component and a perpendicular component relative to the second side (7) of the adhesive tape (3), with a ratio between tangential and perpendicular components of greater than 0.5, where a region of contact between second surface (8) of the second adherend (6) and second side (7) of the adhesive tape (3) is provided with a nonaqueous lubricant.