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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 12747326 B1

PDFFull Text
Date of Patent:
Sep. 29, 2026

Filed:

Mar. 10, 2021

Method for manufacturing polyester film having laminated structure

Applicant:

Nan Ya Plastics Corporation, Taipei, TW;

Inventors:

Te-Chao Liao, Taipei, TW;

Wen-Cheng Yang, Taipei, TW;

Chun-Cheng Yang, Taipei, TW;

Chia-Yen Hsiao, Taipei, TW;

Ching-Yao Yuan, Taipei, TW;

Assignee:

NAN YA PLASTICS CORPORATION, Taipei, TW;

Attorney:

Li & Cai Intellectual Property Office

Primary Examiner:

Monique R Jackson

Int. Cl.
CPC ...
C08J 5/18 (2006.01); B29B 17/04 (2006.01); B29C 48/08 (2019.01); B29C 48/17 (2019.01); B29C 48/21 (2019.01); B32B 27/08 (2006.01); B32B 27/18 (2006.01); B32B 27/20 (2006.01); B32B 27/36 (2006.01); C08J 11/06 (2006.01); C08J 11/10 (2006.01); C08J 11/18 (2006.01); C08J 11/24 (2006.01); C08L 67/02 (2006.01); B29K 67/00 (2006.01); B29K 105/00 (2006.01); B29L 7/00 (2006.01); B29L 9/00 (2006.01);
U.S. Cl.
CPC ...
C08J 5/18 (2013.01); B29C 48/08 (2019.02); B29C 48/17 (2019.02); B29C 48/21 (2019.02); B32B 27/08 (2013.01); B32B 27/18 (2013.01); B32B 27/20 (2013.01); B32B 27/36 (2013.01); C08J 11/06 (2013.01); C08J 11/10 (2013.01); C08J 11/18 (2013.01); C08J 11/24 (2013.01); C08L 67/02 (2013.01); B29B 17/0412 (2013.01); B29B 2017/042 (2013.01); B29K 2067/00 (2013.01); B29K 2105/0032 (2013.01); B29K 2995/002 (2013.01); B29L 2007/008 (2013.01); B29L 2009/00 (2013.01); B32B 2250/02 (2013.01); B32B 2250/03 (2013.01); B32B 2250/244 (2013.01); B32B 2250/40 (2013.01); B32B 2264/1022 (2020.08); B32B 2264/104 (2013.01); B32B 2264/108 (2013.01); B32B 2272/00 (2013.01); B32B 2307/202 (2013.01); B32B 2307/4026 (2013.01); B32B 2367/00 (2013.01); C08J 2367/02 (2013.01); C08J 2467/02 (2013.01); C08L 2205/025 (2013.01); Y02P 20/143 (2015.11); Y02W 30/52 (2015.05); Y02W 30/62 (2015.05);
Abstract

A polyester film having a laminated structure and a method for manufacturing the same are provided. The polyester film has at least two polyester film layers. Each of the polyester film layers includes a physically recycled polyester resin and a chemically recycled polyester resin. The physically recycled polyester resin is formed by a plurality of physically recycled polyester chips. The chemically recycled polyester resin is formed by a plurality of chemically recycled polyester chips, and is mixed with the physically recycled polyester resin. The plurality of chemically recycled polyester chips further includes chemically recycled electrostatic pinning polyester chips. The chemically recycled electrostatic pinning polyester chips contain electrostatic pinning additives, and the electrostatic pinning additives are metal salts. The at least two polyester film layers are a white polyester film layer and a black polyester film layer, respectively.

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