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:
Sep. 12, 2023
Filed:
Jan. 07, 2022
Applicant:
National Tsing Hua University, Hsinchu, TW;
Inventors:
Assignee:
NATIONAL TSING HUA UNIVERSITY, Hsinchu, TW;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B29C 41/00 (2006.01); B29C 41/42 (2006.01); B29C 41/50 (2006.01); B29C 41/20 (2006.01); B29K 67/00 (2006.01);
U.S. Cl.
CPC ...
B29C 41/003 (2013.01); B29C 41/20 (2013.01); B29C 41/42 (2013.01); B29C 41/50 (2013.01); B29K 2067/00 (2013.01); B29K 2801/08 (2013.01); B29K 2805/00 (2013.01); B29K 2995/006 (2013.01);
Abstract
Provided is a method of preparing a biodegradable film, which comprises the steps of coating a soluble supporting solution on a substrate, coating a prepolymer solution, pre-drying, crosslinking, and separating. With the technical means, the method can separate the biodegradable film from the substrate smoothly, thereby ensuring the film integrity of the produced biodegradable film.