Polyphosphoramidite oligomers and stabilizer compositions thereof
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United States of America Patent
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Jun 11, 1985
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N/A
app pub date -
Jun 17, 1983
filing date -
Jun 17, 1983
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Abstract
Amines are reacted with phosphorous trichloride to form N-dichlorophosphinoamines that are then reacted with a bisphenol in about equimolar amounts to provide polyphosphoramidite oligomers. The polyphosphoramidite oligomers are effective as stabilizers for polymers such as polyolefins, and form even more efficient stabilizer combinations with hydroxyphenylalkyleneyl isocyanurates.
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