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:
Apr. 06, 2021
Filed:
Mar. 22, 2017
Applicant:
Toyobo Co., Ltd., Osaka, JP;
Inventors:
Shoji Deguchi, Tsuruga, JP;
Kenji Yoshino, Tsuruga, JP;
Assignee:
TOYOBO CO., LTD., Osaka, JP;
Primary Examiner:
Int. Cl.
CPC ...
B29C 48/00 (2019.01); B29B 17/00 (2006.01); B29C 55/04 (2006.01); B29C 55/14 (2006.01); B29C 48/21 (2019.01); B29D 7/01 (2006.01); B32B 27/20 (2006.01); B29K 105/04 (2006.01); B29K 105/00 (2006.01); B29K 67/00 (2006.01); B29K 23/00 (2006.01); B29K 105/26 (2006.01); B29C 48/08 (2019.01);
U.S. Cl.
CPC ...
B29C 48/022 (2019.02); B29B 17/0005 (2013.01); B29C 48/21 (2019.02); B29C 55/04 (2013.01); B29C 55/143 (2013.01); B29D 7/01 (2013.01); B32B 27/205 (2013.01); B29C 48/0018 (2019.02); B29C 48/08 (2019.02); B29K 2023/12 (2013.01); B29K 2067/00 (2013.01); B29K 2067/003 (2013.01); B29K 2105/0094 (2013.01); B29K 2105/041 (2013.01); B29K 2105/26 (2013.01);
Abstract
A void-containing polyester is disclosed which is excellent in concealing properties, whiteness, and thermal dimensional stability. A void-containing polyester film includes an internal void-containing layer (layer A). The void-containing layer contains a polyester matrix resin and a polypropylene dispersed resin, and satisfies the following requirements (1) to (3), and an apparent density of the film is in a range of 0.8 to 1.2 g/cm.