PLASTICIZED FILMS BASED ON POLYVINYL ACETAL HAVING AN INCREASED GLASS TRANSITION TEMPERATURE AND IMPROVED FLOW PROPERTIES

摘要

Plasticizer-containing films of polyvinyl acetal having a plasticizer content of a maximum of 26% by weight and containing a mixture of at least one high-viscosity polyvinyl acetal having a viscosity of 40-300 mPas and at least one low-viscosity polyvinyl acetal having a viscosity of 5-500 mPas are suitable for the production of photovoltaic modules.