Phosphite additives in polyolefins
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United States of America Patent
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May 17, 2005
Grant Date -
Aug 21, 2003
app pub date -
Dec 17, 2002
filing date -
Dec 17, 2002
priority date (Note) -
Withdrawn
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Abstract
The whiteness and stability of a polyolefin have been found to be improved upon addition of a first phosphite, an arylalkyl diphosphite, and a second phosphite selected from a second arylalkyl disphosphite or a triarylphosphite. In addition, the addition of a triarylphosphite with an arylalkyl disphoshite has been found to improve the hygroscopic nature and the hydrolytic stability of the arylalkyl disphosphite.
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