Polyolefin bound ultraviolet light absorbers
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United States of America Patent
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Oct 15, 2002
Grant Date -
Aug 23, 2001
app pub date -
Apr 2, 2001
filing date -
Apr 29, 1997
priority date (Note) -
In Force
status (Latency Note)
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Abstract
Oligomeric materials contain ultraviolet light absorbing compounds that are covalently bound to the oligomer backbone through an ester or amide linkage. These ultraviolet light absorbing oligomers may be combined with polymers such as polyolefins to provide protection against the harmful effects of ultraviolet light.
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