UV stabilized outdoor cover with barrier properties
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United States of America Patent
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Feb 25, 2003
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N/A
app pub date -
Dec 22, 1999
filing date -
Dec 24, 1998
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Abstract
A nonwoven fabric with UV stability having a layer of meltblown fibers sandwiched between first and second layers of spunbonded fibers wherein each layer includes a base resin selected from the group consisting of polypropylene and polyethylene; combined with melt processable additives which are a mixture of (i) at least two hindered amine light stabilizers; (ii) a processing aid selected from the group consisting of hydroxyl amines and phosphites; and (iii) a carrier resin selected from the group consisting of polypropylene and polyethylene. Other melt processable additives include pigments which are added to provide the desired color in the resulting fabric layer.
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