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:
Jan. 31, 2023
Filed:
Mar. 22, 2022
Applicant:
Chang Chun Petrochemical Co., Ltd., Taipei, TW;
Inventors:
Assignee:
CHANG CHUN PETROCHEMICAL CO., LTD., Taipei, TW;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08F 216/06 (2006.01); B32B 7/12 (2006.01); B32B 27/08 (2006.01); B32B 27/30 (2006.01); B32B 27/32 (2006.01); C08J 5/18 (2006.01);
U.S. Cl.
CPC ...
C08F 216/06 (2013.01); B32B 7/12 (2013.01); B32B 27/08 (2013.01); B32B 27/306 (2013.01); B32B 27/32 (2013.01); C08J 5/18 (2013.01); B32B 2250/246 (2013.01); B32B 2307/538 (2013.01); B32B 2307/72 (2013.01); C08J 2329/04 (2013.01);
Abstract
The present invention relates to an ethylene-vinyl alcohol copolymer (EVOH) resin composition, an EVOH film formed therefrom, and a multilayer structure containing the same. The core height difference (Sk) of the surface of the EVOH resin composition is between 0.6 and 2.0 μm, and the overall standard deviation of Sk is between 0.05 and 0.55. The invention can reduce the torque output during processing to achieve the effect of energy saving, and can also improve the stability during output to obtain a better film appearance.