摘要:
To adhesively bond eloxated aluminium to plastic, a product having at least one layer of a latently reactive adhesive film which has a thermoplastic component which has a melting point T(melting) such that 35°C ≤ T(melting) ≤ 90°C, in particular 40°C ≤ T(melting) ≤ 60°C, and contains functional groups which can react with isocyanate and an isocyanate-containing component which is dispersed in particulate form in the thermoplastic component and is essentially deactivated in the region of the particle surface, where the particles have a start temperature T(start) such that 40°C ≤ T(start) ≤100°C, in particular 45°C ≤ T(start) ≤ 90°C, particularly preferably 45°C ≤T(start) ≤ 75°C; where T(start) ≤ T(melting), is used. Laminates of eloxated aluminium with the abovementioned adhesive product and plastic are employed, in particular, in the electronics industry, e.g. in mobile telephones or laptop computers.
摘要:
The present invention relates to a reactive adhesive film, comprising (a) a polymeric film-forming matrix, (b) at least one reactive monomer or reactive resin, and (c) a reagent selected from among an initiator, more particularly a radical initiator, or an activator, and a reactive 2-component adhesive film system for bonding various materials, such as metal, wood, glass and/or plastic.
摘要:
Disclosed is a method for inscribing or marking surfaces (1), especially metal surfaces. In said method, the surface (1) that is to be inscribed or marked is coated with an absorption promoter (2) in a first step, whereupon a high-energy beam (4), e.g. a laser beam, which colors the surface (1) as a result of the interaction with the absorption promoter by means of a temperature increase, is applied to surface elements that are to be inscribed or colored.
摘要:
The invention relates to a method for adhering two substrates, namely a first substrate A and a second substrate B, to each other using a latent-reactive adhesive film with at least one latent-reactive adhesive film layer which has a thermoplastic component with a melting temperature T(melt), where 35°C ≤ T(melt) ≤ 90°C, said thermoplastic component containing functional groups that can react to isocyanate, and an isocyanate-containing component that is dispersed into the thermoplastic component in a particulate form and is blocked, microencapsulated, or substantially deactivated in the region of the particle surface. The particles have a start temperature T(start) of 40°C ≤ T(start) ≤ 120°C, wherein T(start) ≥ T(melt). A surface of the first substrate A is brought into contact with a first surface of the latent-reactive adhesive film, and a surface of the second substrate B is brought into contact with the second surface of the latent-reactive adhesive film. The adhesion is caused by heating the latent-reactive adhesive film to a temperature which corresponds to or is higher than at least the start temperature T(start). The invention is characterized in that at least the surface of the first substrate A which is brought into contact with the latent-reactive adhesive film is treated with a primer before the first substrate A is brought into contact with the latent-reactive adhesive film, and/or at least the first surface of the latent-reactive adhesive film which is brought into contact with the first substrate A is treated with a primer before the first substrate A is brought into contact with the latent-reactive adhesive film.
摘要:
The invention relates to a laser-transfer film for permanently labeling components, comprising at least one substrate layer with an adhesive layer being present at least in areas of the underside of said substrate layer. According to the invention, a pigment layer is applied to at least some areas of the substrate layer and/or adhesive layer and contains at least one laser-sensitive pigment.