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:
Dec. 03, 2019
Filed:
Mar. 28, 2017
Applicant:
Toyobo Co., Ltd., Osaka, JP;
Inventors:
Masayuki Haruta, Tsuruga, JP;
Norimi Tabota, Osaka, JP;
Assignee:
TOYOBO CO., LTD., Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B32B 27/08 (2006.01); B32B 27/20 (2006.01); B29C 48/00 (2019.01); B29C 48/21 (2019.01); B29C 48/88 (2019.01); B65C 3/06 (2006.01); B65D 23/08 (2006.01); B32B 27/36 (2006.01); B32B 7/02 (2019.01); B29L 31/00 (2006.01); B29K 67/00 (2006.01); B29K 509/02 (2006.01); B32B 5/18 (2006.01);
U.S. Cl.
CPC ...
B32B 27/08 (2013.01); B29C 48/0018 (2019.02); B29C 48/022 (2019.02); B29C 48/21 (2019.02); B29C 48/88 (2019.02); B29C 48/914 (2019.02); B32B 5/18 (2013.01); B32B 7/02 (2013.01); B32B 27/20 (2013.01); B32B 27/36 (2013.01); B65C 3/065 (2013.01); B65D 23/0878 (2013.01); B29K 2067/00 (2013.01); B29K 2509/02 (2013.01); B29K 2995/0049 (2013.01); B29L 2031/744 (2013.01); B32B 2264/102 (2013.01); B32B 2307/736 (2013.01); B32B 2519/00 (2013.01); Y10T 428/24992 (2015.01); Y10T 428/249953 (2015.04); Y10T 428/249987 (2015.04); Y10T 428/249989 (2015.04);
Abstract
The present invention provides a void-containing heat-shrinkable polyester film which has satisfactory shrinkage finishing properties and printability even if productivity is improved. The void-containing heat-shrinkable polyester film is a multilayer structure having a non-foamed layer on both outer sides of the foamed layer, and by controlling the film thickness, density, and number of moles of the amorphous component on both outer sides, specific heat shrinkage characteristics and gloss can be improved.