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:
Jun. 18, 2024
Filed:
Oct. 21, 2021
China Yunhong Holdings Co., Ltd., Hubei, CN;
Yunhong Environmental Technology Co., Ltd., Hubei, CN;
Guozhong Xinghe Biomedical Technology Co., Ltd., Hubei, CN;
Jingren He, Hubei, CN;
Yubao Li, Hubei, CN;
Dong Wu, Hubei, CN;
Shuxin Ye, Hubei, CN;
Sijia Jiang, Hubei, CN;
Rui Zhang, Hubei, CN;
China Yunhong Holdings Co., Ltd., Huanggang, CN;
Yunhong Environmental Technology Co., Ltd., Huanggang, CN;
Guozhong Xinghe Biomedical Technology Co., Ltd., Huanggang, CN;
Abstract
Disclosed is a method for preparing a fully-degradable non-woven fabric by spun-bonding, including: (S1) preparation of a poly(caprolactone-co-lactide acid) (P(CL-co-LA)); (S2) preparation of a copolymerized-modified poly(lactide acid) (PLA); and (S3) preparation of a full-degradable non-woven fabric using a spun-bond method. In this disclosure, the PLA is modified in gradient several times to prepare the full-degradable non-woven fabric in combination with an optimized spun-bonding method.