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The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 12503817 B1

PDFFull Text
Date of Patent:
Dec. 23, 2025

Filed:

Feb. 18, 2020

Method for producing sheet for heat-insulating foamed paper container

Applicant:

Nissin Foods Holdings Co., Ltd., Osaka, JP;

Inventors:

Yoshitsugu Nishino, Osaka, JP;

Noboru Omori, Osaka, JP;

Assignee:

NISSIN FOODS HOLDINGS CO., LTD., Osaka, JP;

Attorney:

HSML P.C.

Primary Examiner:

Scott W Dodds

Int. Cl.
CPC ...
B29C 44/32 (2006.01); B32B 5/18 (2006.01); B32B 5/20 (2006.01); B32B 27/06 (2006.01); B32B 27/10 (2006.01); B32B 27/32 (2006.01); B32B 29/00 (2006.01); B32B 37/15 (2006.01); B65D 65/40 (2006.01); B65D 81/38 (2006.01); D21F 11/00 (2006.01); D21H 23/30 (2006.01); D21H 23/64 (2006.01); D21H 27/10 (2006.01);
U.S. Cl.
CPC ...
D21H 23/64 (2013.01); B29C 44/321 (2016.11); B32B 5/18 (2013.01); B32B 5/20 (2013.01); B32B 27/065 (2013.01); B32B 27/10 (2013.01); B32B 27/32 (2013.01); B32B 29/007 (2013.01); B32B 37/153 (2013.01); B65D 65/40 (2013.01); B65D 81/3867 (2013.01); D21F 11/002 (2013.01); D21H 23/30 (2013.01); D21H 27/10 (2013.01); B29K 2023/06 (2013.01); B32B 2266/025 (2013.01); B32B 2307/7246 (2013.01); B32B 2439/00 (2013.01);
Abstract

[Problem] The problem that unevenness occurs in the foam layer and the insulating property deteriorates when lamination is carried out at high speed was clarified in a process for producing a sheet for a foam insulating paper container. Specifically, the problem addressed by the present invention is to provide a sheet for a foam insulating paper container that can be foamed without unevenness even when laminated at high speed. [Solution] The present inventors discovered that the problem addressed by the present invention can be solved by a method for producing a sheet for a foam insulating paper container in which a polyethylene resin is laminated on at least one side of a paper substrate, wherein the method for producing a sheet for a foam insulating paper container is characterized in that the lamination conditions are an air gap of 150 mm or greater and a take-off speed of 70 m/min or higher.

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