| abstract |
DAMMING PROPERTY FILM LAMINATE CONTAINING A PARTIAL LAYER MADE OF ACETAL POLYVINYL CONTAINING PLASTIFICANT. The present invention relates to a film laminate consisting of at least three layers A, B and C respectively containing at least one plasticizer and at least one polyvinyl acetal wherein - the two outer layers A and C contain at least one polyvinyl acetal respectively same or different with a polyvinyl alcohol percentage of 18.5 - 23 wt%, - at least one inner layer B contains at least one polyvinyl alcohol with a polyvinyl alcohol percentage of 12 - 18 wt% and - at least one of Layers A, B or C contain at least one polyvinyl (iso) acetal. Film laminates can be used for the manufacture of glass / film / glass laminate composites for automobiles, aircraft, ships, architectural glazing, facade components or for the manufacture of photovoltaic modules. |