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. 22, 2026
Filed:
Oct. 10, 2022
Applicant:
Ningbo Michi Technology Co., Ltd., Ningbo, CN;
Inventors:
Hongwei Bai, Beijing, CN;
Shihao Deng, Beijing, CN;
Qiang Fu, Beijing, CN;
Zeshuang Qiao, Beijing, CN;
Qin Zhang, Beijing, CN;
Ke Wang, Beijing, CN;
Assignee:
NINGBO MICHI TECHNOLOGY CO., LTD., Ningbo, CN;
Primary Examiner:
Int. Cl.
CPC ...
C08G 63/68 (2006.01); A61K 8/85 (2006.01); A61Q 11/00 (2006.01); C08G 63/08 (2006.01); C08G 63/90 (2006.01);
U.S. Cl.
CPC ...
C08G 63/08 (2013.01); A61K 8/85 (2013.01); A61Q 11/00 (2013.01); C08G 63/90 (2013.01); A61K 2800/54 (2013.01); A61K 2800/92 (2013.01);
Abstract
A piezoelectric polylactic acid material has a layered stacking structure, and a porous structure is formed between stacked layers. The piezoelectric polylactic acid material has a piezoelectric constant of 5.2-35.3 pC/N, has the ability to efficiently catalyze dye/pigment degradation, and can be used in the fields of dye/pigment degradation and tooth whitening. A preparation method for the piezoelectric polylactic acid composite material is also provided.