Weatherability and adherence of polypropylene
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United States of America Patent
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Mar 5, 1991
Issued Date -
N/A
app pub date -
Jul 6, 1989
filing date -
Jul 28, 1986
priority date (Note) -
Expired
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Abstract
A process is provided for improving the resistance to deterioration when exposed to weather and the adherence to other materials of polypropylene, particularly in the form of moldings, which comprises subjecting a surface of polypropylene to the action of activated oxygen gas at a temperature below about 100.degree. C. in the presence of an N-alkyl or N-acyl 2,2,6,6-tetramethyl piperidyl compound for a time sufficient to improve such weather resistance and adherence.
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