Verfahren zum dauerhaften Verbinden von Polymerbauteilen mit Bauteilen aus gleichartigem oder andersartigem Material

DE 10004853 C UPAB: 20010515 NOVELTY - Permanent bonding (M1) of polymer components with components of material of the same or different type is new. DETAILED DESCRIPTION - (M1) comprises: (1) cleaning the areas to be bonded; (2) activation to produce reactive functional groups; and (3) contacting the activated areas to initiate bonding between these groups under pressure, exclusion of moisture and heating up to the glass transition or melting temperature of the polymer part(s), without reaching this temperature. USE - The process is useful for bonding polymer parts to other parts, e.g. of polymers, glasses, metals or semiconductors; e.g. polymethyl methacrylate or other material, especially thermoplastic plastics, e.g. polycarbonate or polyethylene. It is especially useful for providing microstructurized polymer components with a cover that provides a hermetic seal for the resultant microstructurized, typically microfluid, cavities. These microstructurized disposables are useful in biotechnology, medicine and pharmacology. ADVANTAGE - Hot melt welding or bonding with adhesive does not guarantee that the functional characteristics of the microstructurized canals remain unchanged. The present method avoids structural effects and undesirable modification of the surfaces to be bonded. It is more accurate and also cost-effective for large-scale production