	US 11,939,129 B2
	Methods and apparatus for manufacturing high-strength fiber-based beverage holders
Yoke Dou Chung, Chandler, AZ (US); Brandon Michael Moore, Mesa, AZ (US); Yiyun Zhang, Gilbert, AZ (US); and Michael Theodore Lembeck, San Tan Valley, AZ (US)
Assigned to FOOTPRINT INTERNATIONAL, LLC, Gilbert, AZ (US)
Filed by Footprint International, LLC, Gilbert, AZ (US)
Filed on Oct. 26, 2020, as Appl. No. 17/080,794.
Application 17/080,794 is a continuation in part of application No. 16/790,675, filed on Feb. 13, 2020.
Application 16/790,675 is a continuation in part of application No. 15/220,374, filed on Jul. 26, 2016, granted, now 10,428,467, issued on Oct. 1, 2019.
Application 15/220,374 is a continuation in part of application No. 16/104,021, filed on Aug. 16, 2018, granted, now 10,815,622.
Prior Publication US 2021/0039856 A1, Feb. 11, 2021
This patent is subject to a terminal disclaimer.
Int. Cl. D21J 3/02 (2006.01); B65B 27/04 (2006.01); B65D 71/50 (2006.01); D21H 17/55 (2006.01); D21H 17/56 (2006.01); D21H 11/14 (2006.01)

CPC B65D 71/506 (2013.01) [B65B 27/04 (2013.01); D21H 17/55 (2013.01); D21H 17/56 (2013.01); D21J 3/02 (2013.01); D21H 11/14 (2013.01)]

13 Claims

1. A vacuum-formed carrier for holding cylindrically shaped containers, comprising:

a plurality of collars interconnected by a web, wherein each collar exhibits a nominal diameter of about 1.95 inches and the web exhibits a substantially uniform thickness in a range of 0.01 to 0.05 inches;

wherein the plurality of collars comprises a fiber-based material produced using a slurry including at least one of old corrugated containers (OCC) and newsprint (NP), a moisture barrier additive in an amount of about 4.0% by weight; a wet strength additive in an amount of about 4.0% by weight; and a dry strength additive in an amount of about 4.0% by weight;

wherein the wet strength additive comprises a polyamidoamine-epichlorohydrin (PAE) resin; and the dry strength additive comprises a cationic modified polyamine water soluble polymer.