US 12,434,466 B2
Method for producing microwave-resistant sheet for heat-insulating foamed paper container
Noboru Omori, Osaka (JP); and Yosuke Nakatani, Osaka (JP)
Assigned to NISSIN FOODS HOLDINGS CO., LTD., Osaka (JP)
Appl. No. 17/281,141
Filed by NISSIN FOODS HOLDINGS CO., LTD., Osaka (JP)
PCT Filed Feb. 18, 2020, PCT No. PCT/JP2020/006156
§ 371(c)(1), (2) Date Mar. 29, 2021,
PCT Pub. No. WO2020/171032, PCT Pub. Date Aug. 27, 2020.
Claims priority of application No. 2019-028273 (JP), filed on Feb. 20, 2019.
Prior Publication US 2021/0339518 A1, Nov. 4, 2021
Int. Cl. B32B 37/15 (2006.01); B32B 5/20 (2006.01); B32B 27/10 (2006.01); B32B 27/32 (2006.01); B32B 29/00 (2006.01); B65D 3/06 (2006.01); B65D 25/36 (2006.01)
CPC B32B 37/153 (2013.01) [B32B 5/20 (2013.01); B32B 27/10 (2013.01); B32B 27/32 (2013.01); B32B 29/007 (2013.01); B65D 3/06 (2013.01); B65D 25/36 (2013.01); B32B 2266/025 (2013.01); B32B 2307/304 (2013.01); B32B 2307/72 (2013.01); B32B 2307/7246 (2013.01); B32B 2309/14 (2013.01); B32B 2317/12 (2013.01); B32B 2323/04 (2013.01); B32B 2439/02 (2013.01)] 6 Claims
OG exemplary drawing
 
1. A method for producing a sheet for a heat-insulating foamed paper container, the method comprising laminating a polyethylene resin on at least one surface of a paper substrate,
wherein laminate conditions include an air gap in a range of 160 mm or larger and a drawing speed in a range of 65 m/min or lower, and
wherein a density of the polyethylene resin is in a range from 923 to 930 kg/m3.