Film of polyvinyl(iso)acetal containing plasticizers
A film contains a mixture of at least one non-aromatic plasticizer having a polarity, expressed by the formula 100O/(C+H), of less than/equal to 9.4 wherein O, C and H represent the number of oxygen, carbon and hydrogen atoms in the respective molecule, and a polyvinyl (iso)acetal having a proportio...
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Format: | Patent |
Sprache: | chi ; eng |
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Zusammenfassung: | A film contains a mixture of at least one non-aromatic plasticizer having a polarity, expressed by the formula 100O/(C+H), of less than/equal to 9.4 wherein O, C and H represent the number of oxygen, carbon and hydrogen atoms in the respective molecule, and a polyvinyl (iso)acetal having a proportion of polyvinyl (iso)acetal groups of 60 to 85% by weight and a proportion of polyvinyl alcohol groups of 14 to 40% by weight. The films may be used in the automotive industry, in windscreens, in the field of architecture, in fa?ade components, or for the production of photovoltaic modules. |
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