Tapes including an elastomeric backing layer having two major surfaces, wherein the backing layer includes a high temperature resistant elastomer (e.g., a high consistency silicone rubber elastomer), and a pressure sensitive adhesive layer, wherein the pressure sensitive adhesive layer comprises a silicone pressure sensitive adhesive.

Peel ply for surface preparation and a method of surface preparation prior to adhesive bonding. A resin-rich peel ply is applied onto a curable, resin-based composite substrate, followed by co-curing. After co-curing, the composite substrate is fully cured but the matrix resin in the peel ply remains partially cured. When the peel ply is removed, a roughened, bondable surface with chemically-active functional groups is revealed. The composite substrate with the chemically-active, bondable surface may be bonded to another composite substrate to form a covalently-bonded structure.

A water-based bonding primer composition and a method of applying the same onto a metallic surface prior to adhesive bonding. The bonding primer composition is a water-based dispersion containing water, one or more epoxy resins, at least one curing agent, a silane compound, a low amount of a carbon-based material in particulate form, and optional additives. The carbon-based material is selected from graphene, graphene oxide (GO), graphite, carbon with various structures in micron-scale or nanoscale size, and combination thereof.

Primer for adhesive tape with improved adhesion promoting properties, comprising a mixture G, which is dissolved or dispersed in one or more solvents, consisting of at least one copolymer obtained by copolymerization of a monomer mixture comprising an amount of at least 90 wt % of the following monomers: vinylcaprolactam and/or vinylpyrrolidone; one or more of the monomers a) and/or b): a) acrylic acid ester of a linear, primary alcohol having 2 to 10 carbon atoms in the alkyl group of the alcohol, b) acrylic acid ester of a branched, non-cyclic alcohol having 3 to 12 carbon atoms in the alkyl group, at least one chlorinated polyolefin, and at least one metal compound selected from the group consisting of metal acetylacetonates, metal alkoxides and alkoxy-metal acetylacetonates.

Multilayer films and adhesive tapes that include such films, wherein the multilayer films include plasticized polyvinyl chloride and optionally one or more fillers.

The present invention relates to the use of substituted benzyl alcohols as modifiers in epoxy systems.

A water-based primer composition is particularly suitable for the pre-treatment of polycarbonate substrates, and has a component K1 having an aqueous epoxy resin dispersion, an aqueous polyester-polyurethane dispersion and an aqueous polyacrylate dispersion, and optionally a water-miscible organic solvent, and a second component K2 containing a water-dispersible curing agent based on isocyanate. The primers provide a strong bonding of subsequently applied adhesives to polycarbonate substrates, and permit a processing with a significant reduction in VOC emissions and the prevention of the occurrence of stress-cracks.

An adhesive composition (composition) comprises an epoxy resin, a binder, and a curing agent. Typically, the composition further comprises an aqueous solvent (e.g. water) such that the composition can be referred to as an aqueous adhesive composition. The epoxy resin is typically encapsulated to prevent premature cure of the composition. After rupture of the encapsulated epoxy resin, the composition cures to form an adhesive. The composition is useful for articles such as fasteners (e.g. nuts and bolts) such that it can be referred to as a fastener adhesive. Typically, the composition is disposed on a threaded surface of the fastener. The fastener can be used for an assembly in which the composition generally cures after installation of the fastener. To make the fastener, the adhesive composition can be applied on the threaded surface. After application, the composition can be dried in instances where the composition still includes the aqueous solvent.

A protection membrane-forming film (1) containing a filler, wherein the average particle size of the filler is not more than 0.4 m, a protection membrane-forming sheet (2), a production method and an inspection method for a workpiece or a processed product which use the film and the sheet, and a workpiece and a processed product determined as adequate products by the inspection method. The protection membrane-forming film and the protection membrane-forming sheet of the invention enable the formation of a protection membrane having excellent print legibility when subjected to print processing by laser irradiation.

An aqueous adhesion composition comprising: a) at least one dispersed solid epoxy resin (EP); b) at least one amino silane (AS); c) at least one acid (HS); d) at least one amine hardener (AH); and e) water. According to the invention, the adhesion compositions substantially improve, particularly under humid conditions, the adhesion on different substrates. The compositions are storage stable for a longer period of time and have, even after different aging states of the components, essentially no impairment in the action thereof.