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US 9,315,300 B2Granted
Drawtape with increased elongation and drawtape bag using same
AssigneeReynolds Consumer Products, Inc.
InventorsWayne J. Moras, Steven P. Long, Stephen H. Holt, Ryan M. Horstmeyer
Life of this patent
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Abstract
Drawtape includes a film of a polymeric blend of a minor polymer component of linear low density polyethylene and a major polymer component of medium density polyethylene and/or high density polyethylene. The drawtape of the disclosed subject matter is capable of a strong seal with a commercial polymeric bag, and provides a high elongation prior to tape failure or seal failure. Drawtape bag and method of making the drawtape are also provided.
Claims31
A drawtape comprising:
- a film of a polymeric blend including:
- between about 25 wt % and about 30 wt % linear low density polyethylene;
- and
- a major polymer component selected from medium density polyethylene, high density polyethylene, or combinations thereof.
1 more element
A drawtape bag comprising:
- first and second thermoplastic body panels joined along a pair of opposing sides and a bottom bridging the opposing sides, the joined first and second body panels defining a mouth disposed opposite the bottom;
- and
- a drawtape disposed proximate the mouth of the bag, the drawtape comprising
- a film of a polymeric blend including:
- a) between about 25 wt % and about 30 wt % linear low density polyethylene;
- and
- b) a major polymer component selected from medium density polyethylene, high density polyethylene, or combinations thereof.
4 more elements
A method of making a drawtape comprising:
- providing a polymeric blend comprising
- a) between about 25 wt % and about 30 wt % linear low density polyethylene;
- and
- b) a major polymer component selected from medium density polyethylene, high density polyethylene, or combinations thereof;
- forming the polymeric blend into a film;
- and
- shaping the film into a drawtape.
4 more elements
Dependencies are inferred from the claim text.