PVB FILM COMPRISING PHENOLIC ANTIOXIDANTS HAVING THE PARTIAL STRUCTURE 3-T-BUTYL-4-HYDROXY-5-METHYLPHENYL PROPRIONATE
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United States of America Patent
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Issued Date -
May 16, 2013
app pub date -
May 6, 2011
filing date -
May 11, 2010
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Abandoned
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Abstract
The invention relates to thermoplastic mixtures or to films produced therefrom, containing at least one polyvinyl acetal and at least one plasticiser, characterised by the addition of 0.001 to 1% by weight of at least one compound according to formula 1, where R=a hydrocarbon radical of a polyfunctional alcohol, oligoglycols comprising 1 to 10 glycol units or a hydrocarbon radical comprising 1 to 20 carbon atoms, and X=1, 2, 3 or 4 as a stabiliser.
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