Stabilized polyethylene

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United States of America Patent

PATENT NO 9951212
SERIAL NO

15098601

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Abstract

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Polyethylene is often stabilized with the combination of a primary antioxidant (such as a hindered phenol, a hydroxylamine or a lactone) and a secondary antioxidant (such as a phosphonite, a monophosphite, or a diphosphite). The diphosphite additives are not completely compatible with “linear” polyethylene. This results in “blooming” of the diphosphite to the surface of the finished polyethylene part or polyethylene film. The use of a preblend of ethylene vinyl alcohol (EVOH) and diphosphite mitigates this problem.

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Patent Owner(s)

Patent OwnerAddress
NOVA CHEMICALS (INTERNATIONAL) S AAVENUE DE LA GARE 14 FRIBOURG 1700

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Borse, Nitin Calgary, CA 23 39
Ho, Kam Wah Calgary, CA 4 13
Tikuisis, Tony Calgary, CA 32 114

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