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. 03, 2023
Filed:
Mar. 28, 2018
Method for producing biodegradable polyester film from fatty acid amide and poly(3-hydroxyalkanoate)
Applicant:
Kaneka Corporation, Osaka, JP;
Inventor:
Ryohei Koyama, Settsu, JP;
Assignee:
KANEKA CORPORATION, Osaka, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08J 3/22 (2006.01); B29C 48/00 (2019.01); C08J 5/18 (2006.01); B29K 67/00 (2006.01); B29L 23/00 (2006.01);
U.S. Cl.
CPC ...
C08J 3/22 (2013.01); B29C 48/0018 (2019.02); B29C 48/022 (2019.02); C08J 5/18 (2013.01); B29K 2067/00 (2013.01); B29K 2995/006 (2013.01); B29L 2023/001 (2013.01); C08J 2367/02 (2013.01); C08J 2467/02 (2013.01);
Abstract
Provided is a method with which a biodegradable polyester film containing polyhydroxyalkanoate can be stably produced by film blowing under practical processing conditions. A method for producing a biodegradable polyester film containing a biodegradable aliphatic polyester (A) and a fatty acid amide (B) by film blowing, the biodegradable aliphatic polyester (A) containing polyhydroxyalkanoate, the method including: a step (I) of dry-blending the biodegradable aliphatic polyester (A) with a masterbatch containing the fatty acid amide (B) and a base material resin; and a step (II) of subjecting the mixture obtained in the step (I) to film blowing.