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.:
Date of Patent:
Oct. 07, 2025
Filed:
Feb. 18, 2022
Applicant:
Tosoh Corporation, Yamaguchi, JP;
Inventors:
Assignee:
TOSOH CORPORATION, Shunan, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B32B 27/32 (2006.01); B32B 7/02 (2019.01); B32B 27/08 (2006.01); C08F 10/02 (2006.01); C08J 5/18 (2006.01); C08L 23/06 (2006.01); C08L 23/0807 (2025.01);
U.S. Cl.
CPC ...
B32B 27/32 (2013.01); B32B 7/02 (2013.01); B32B 27/08 (2013.01); C08F 10/02 (2013.01); C08J 5/18 (2013.01); C08L 23/06 (2013.01); C08L 23/0815 (2013.01); B32B 2250/02 (2013.01); B32B 2250/242 (2013.01); B32B 2272/00 (2013.01); B32B 2307/518 (2013.01); B32B 2307/72 (2013.01); C08J 2323/06 (2013.01); C08J 2423/08 (2013.01);
Abstract
A stretched polyethylene film for lamination, which comprises a polyethylene (A) having a weight average molecular weight (Mw) as measured by gel permeation chromatography of from 70,000 to 250,000, a proportion of fractions with a molecular weight of 10,000 or less of 8 wt % or less, and a density as measured in accordance with JIS K6922-1 (1997) of from 945 to 980 kg/m, and has at least one peak in a range of 135° C. or higher in an endothermic curve as measured by differential scanning calorimetry, the film having high recyclability and excellent in heat resistance.