US 12,029,236 B2
Coated plug wrap for a smoking article
Marcus Aurelius Goldoni, Jr., Rio de Janeiro (BR); and Carlos Eduardo da Silva Ragazzo, Rio de Janeiro (BR)
Assigned to SWM Holdings US, LLC, Alpharetta, GA (US)
Appl. No. 14/916,445
Filed by Mativ Holdings, Inc., Alpharetta, GA (US)
PCT Filed Sep. 5, 2014, PCT No. PCT/US2014/054249
§ 371(c)(1), (2) Date Mar. 3, 2016,
PCT Pub. No. WO2015/035137, PCT Pub. Date Mar. 12, 2015.
Claims priority of provisional application 61/874,240, filed on Sep. 5, 2013.
Prior Publication US 2016/0213057 A1, Jul. 28, 2016
Int. Cl. A24D 1/02 (2006.01); A24C 5/00 (2020.01); A24D 3/04 (2006.01); D21H 19/20 (2006.01); D21H 19/22 (2006.01); D21H 23/24 (2006.01)
CPC A24D 1/02 (2013.01) [A24C 5/005 (2013.01); A24D 3/04 (2013.01); D21H 19/20 (2013.01); D21H 19/22 (2013.01); D21H 23/24 (2013.01)] 12 Claims
OG exemplary drawing
 
1. A coated plug wrap for a smoking article, the coated plug wrap comprising:
a base paper comprising hardwood pulp fibers and softwood pulp fibers, wherein the base paper comprises greater than 80% hardwood pulp fibers based on the total dry weight of the fibers; wherein the base paper without any coating applied has an initial permeability of about 20 Coresta units or less, wherein the coated plug wrap has a permeability of less than about 10 Coresta units;
a coating on at least one surface of the base paper, the coating comprising an acrylate, a styrene, a butadiene, a starch, a starch derivative, a cellulose derivative, an alginate, a polyvinyl alcohol, a polyvinyl acetate, a gelatin, a gum, or a combination thereof, wherein the coated plug wrap has a moisture content of less than about 10% by weight; and
wherein the coated plug wrap has a Kit rating of at least 4.