Polymeric films and bags
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United States of America Patent
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Feb 21, 2017
Grant Date -
Sep 15, 2016
app pub date -
Mar 12, 2015
filing date -
Mar 12, 2015
priority date (Note) -
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Abstract
The present invention is directed to a method of incrementally stretching polymeric film formed from a blown film extrusion process. The present invention is further directed to a polymeric bag formed from an incrementally stretched polymeric film. The incremental stretching is performed on a collapsed polymeric bubble via a pair of intermeshing rollers. The incrementally stretched polymeric film may be stretched only along a portion of its width. The polymeric bag may be a drawstring trash bag with an extended hem where only the extended hem of the polymeric bag comprises incrementally stretched polymeric film.
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