UV stabilized spunbond fabrics with enhanced trapezoidal tear
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United States of America Patent
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Dec 10, 2002
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N/A
app pub date -
Oct 4, 1999
filing date -
Oct 5, 1998
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Abstract
A nonwoven fabric with UV stability having a spunbonded fabric layer comprising a base resin selected from the group consisting of polypropylene and polyethylene; combined with melt processable additives; wherein said melt processable additives 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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