US 11,731,390 B2
Thermoplastic bags with complex stretch patterns
Shaun T. Broering, Fort Thomas, KY (US); Michael G. Borchardt, Naperville, IL (US); Ranyi Zhu, Naperville, IL (US); Jason R. Maxwell, Willowbrook, IL (US); Daniel Charles Peck, Mason, OH (US); Hugh Joseph O'Donnell, Cincinnati, OH (US); Robert T. Dorsey, Willowbrook, IL (US); Lehai Minh Pham Vu, Monroe, OH (US); and Karen Denise McAffry, Maineville, OH (US)
Assigned to The Glad Products Company, Oakland, CA (US)
Filed by The Glad Products Company, Oakland, CA (US)
Filed on Sep. 19, 2022, as Appl. No. 17/933,324.
Application 17/933,324 is a division of application No. 16/761,191, granted, now 11,485,108, previously published as PCT/US2018/058998, filed on Nov. 2, 2018.
Claims priority of provisional application 62/583,108, filed on Nov. 8, 2017.
Prior Publication US 2023/0008520 A1, Jan. 12, 2023
Int. Cl. B32B 3/28 (2006.01); B29C 55/08 (2006.01); B29C 55/18 (2006.01); B29D 7/01 (2006.01); B32B 3/30 (2006.01); B32B 27/08 (2006.01); B31B 70/00 (2017.01); B31B 70/88 (2017.01); B65F 1/00 (2006.01); B65D 65/40 (2006.01); B32B 7/05 (2019.01); B32B 37/00 (2006.01); B31B 170/20 (2017.01); B31B 155/00 (2017.01); B31B 70/86 (2017.01)
CPC B32B 3/28 (2013.01) [B29C 55/08 (2013.01); B29C 55/18 (2013.01); B29D 7/01 (2013.01); B31B 70/008 (2017.08); B31B 70/88 (2017.08); B32B 3/30 (2013.01); B32B 27/08 (2013.01); B65D 65/403 (2013.01); B65F 1/0006 (2013.01); B31B 70/866 (2017.08); B31B 2155/002 (2017.08); B31B 2155/0014 (2017.08); B31B 2170/20 (2017.08); B32B 7/05 (2019.01); B32B 37/0038 (2013.01); B32B 2274/00 (2013.01); B32B 2307/7145 (2013.01); B65F 2250/114 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A thermoplastic bag with one or more strainable networks formed by a structural elastic like process, the thermoplastic bag comprising:
first and second sidewalls of a thermoplastic film having a plurality of non-continuous raised rib-like elements extending in a direction perpendicular to a main surface of the thermoplastic film, wherein the plurality of non-continuous raised rib-like elements:
form one or more strainable networks; and
comprise raised rib-like elements arranged into repeating patterns comprising a first macro pattern and a second micro pattern, wherein second micro patterns are surrounded by first macro patterns;
a plurality of web areas positioned about the plurality of non-continuous raised rib-like elements; and
wherein the plurality of non-continuous raised rib-like elements and the plurality of web areas are sized and positioned such that, when subjected to an applied load, a stretch profile of the thermoplastic film has a complex shape.