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:
Aug. 24, 2021
Filed:
Mar. 13, 2018
Nano and Advanced Materials Institute Limited, Hong Kong, HK;
Jinjie Xu, Hong Kong, HK;
Sau Kuen Connie Kwok, Hong Kong, HK;
Wah Kit Cheuk, Hong Kong, HK;
Ying Li, Hong Kong, HK;
Pak Ho Lau, Hong Kong, HK;
Nano and Advanced Materials Institute Limited, Hong Kong, HK;
Abstract
A film forming composition comprises a film forming component and a solvent, wherein the film forming component comprises 0-50 wt % of a first water soluble polymer, 0.3-40 wt % of a second water soluble polymer, 0-15 wt % of plasticizer and 50-70 wt % of active ingredient. The first and second water soluble polymers have a Tg of −52° C. to 216° C., and difference of Tg values of the first and second water soluble polymer is 62-268° C. The film formed by the film forming composition capable to load high content of active ingredient and lead to fast absorption of active ingredient is provided.