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:
May. 10, 2016
Filed:
Oct. 05, 2011
Applicants:
Hideyuki Yamauchi, Otsu, JP;
Junichi Masuda, Otsu, JP;
Yoshikazu Endo, Otsu, JP;
Osamu Kitamura, Otsu, JP;
Inventors:
Hideyuki Yamauchi, Otsu, JP;
Junichi Masuda, Otsu, JP;
Yoshikazu Endo, Otsu, JP;
Osamu Kitamura, Otsu, JP;
Assignee:
Toray Industries, Inc., , JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B29C 47/88 (2006.01); B29C 47/92 (2006.01); B29C 47/00 (2006.01); B29C 47/14 (2006.01); B29K 67/00 (2006.01);
U.S. Cl.
CPC ...
B29C 47/888 (2013.01); B29C 47/8865 (2013.01); B29C 47/8875 (2013.01); B29C 47/92 (2013.01); B29C 47/0021 (2013.01); B29C 47/14 (2013.01); B29C 2947/92571 (2013.01); B29C 2947/92923 (2013.01); B29K 2067/043 (2013.01); B29K 2067/046 (2013.01);
Abstract
An aliphatic polyester film is obtained by melt-extruding an aliphatic polyester as a film, controlling the entrained air stream between a casting drum and the film while inhibiting the variations of the film edge portion landing points on the casting drum, and subsequently bringing the film into contact with the casting drum over the entire width of the film.