Solid alkylaryl phosphite compositions and methods for manufacturing same
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United States of America Patent
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Nov 13, 2012
Grant Date -
Feb 3, 2011
app pub date -
Jul 26, 2010
filing date -
Jul 31, 2009
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Abstract
The invention is directed to various alkylaryl phosphite compositions that ideally are suitable for use as secondary antioxidants in polymers. In one aspect, the phosphite composition comprises a tris(monoalkylaryl)phosphite in an amount from 51 to 95 weight percent; and at least one of: a bis(monoalkylaryl)dialkylaryl phosphite; a bis(dialkylaryl)monoalkylaryl phosphite; and a tris(dialkylaryl)phosphite. The inventive phosphite composition is a solid at ambient conditions. The invention also relates to alkylate compositions and processes for forming such alkylate compositions and such phosphite compositions.
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