Abstract: A method of constructing a model of permeation to mixtures of solvents of a multilayer polymer structure with n monolayers and its associated computer program. For example, selecting several initial compositions of solvent mixture E1 to Ey, carrying out a sorption measurement and a measurement of diffusion, discretizing said multilayer structure in space and time, estimating partial fluxes of each of the compounds of said composition of solvent mixture between each elementary slice of said multilayer structure, estimating on the one hand a maximal sorption ceiling of said downstream monolayer B and on the other hand the composition of solvent mixture at inlet of said downstream monolayer B, performing a mass balance from slice to slice as a function of time, adjusting the profile of concentrations, storing the concentration profiles and the partial fluxes obtained.

Abstract: A method of constructing a model of permeation to mixtures of solvents of a multilayer polymer structure with n monolayers and its associated computer program. For example, selecting several initial compositions of solvent mixture E1 to Ey, carrying out a sorption measurement and a measurement of diffusion, discretizing said multilayer structure in space and time, estimating partial fluxes of each of the compounds of said composition of solvent mixture between each elementary slice of said multilayer structure, estimating on the one hand a maximal sorption ceiling of said downstream monolayer B and on the other hand the composition of solvent mixture at inlet of said downstream monolayer B, performing a mass balance from slice to slice as a function of time, adjusting the profile of concentrations, storing the concentration profiles and the partial fluxes obtained.

Abstract: A hand-held operator manipulatable applicator device is used for dispensing adhesive bonding material to bond a panel (such as an automotive glazing panel). The device has a body containing a delivery channel for delivering adhesive to an outlet nozzle and a heating system disposed within the body for heating the bonding material in the channel to produce a substantially uniform outlet dispensing temperatures via the nozzles.

Abstract: A glazing panel is fitted in a frame by placing the glazing panel in register with the frame with soft state bonding material interposed. An energy field is then set up to act upon the bonding material the energy field acting to promote curing of the bonding material. Preferably a microwave energy field is set up and the energy is applied for a predetermined period, typically less than 60 seconds.