Fabric-supported chitosan modified temperature responsive PNIPAAm/PU hydrogel and the use thereof in preparation of facial mask
This invention involves fabric-supported chitosan modified temperature responsive PNIPAAm/PU hydrogel and the use thereof in preparation of facial mask. The merit of this invention is the hydrogel formed can reversibly swell and deswell near body temperature; the incorporation of PU can suppress the syneresis of PNIPAAm at an elevated temperature; Grafting of PNIPAAm and PU onto the surface of cellulose fabrics can enhance the mechanical strength of hydrogel; Coupling of chitosan to the surface of hydrogel can not only improve the handle and skin affinity, but also render the facial mask antibacterial; The hydrogel is capable of loading a variety of nutrients (or other functional components), which can release at body temperature; the hydrogel facial mask can be reusable with repeated rinsing.
Patent Number: US7780979B2
Application Number: US2006341762A
Inventor: Hu, Jinlian | Liu, Wenguang | Liu, Baohua
Priority Date: 21 Jun 2005
Priority Number: US7780979B2
Application Date: 27 Jan 2006
Publication Date: 24 Aug 2010
IPC Current: A61F001300 | A61F001500 | A61K000962
US Class: 424443 | 424402 | 424445 | 424461 | 442097 | 602045 | 602048 | 602049
Assignee Applicant: The Hong Kong Polytechnic University
Title: Fabric-supported chitosan modified temperature responsive PNIPAAm/PU hydrogel and the use thereof in preparation of facial mask
Usefulness: Fabric-supported chitosan modified temperature responsive PNIPAAm/PU hydrogel and the use thereof in preparation of facial mask
Summary: For preparation of fabric-supported chitosan modified temperature responsive PNIPAAm/PU hydrogel that is used to form facial mask (claimed).
Novelty: Temperature responsive poly(N-isopropylacrylamide)/polyurethane hydrogel used to form facial mask is prepared using vinyl-capped polyurethane anionomer, triethylamine, N-isopropylacrylamide, methylenebisacrylamide and nonwoven fabric
生物醫學
醫療化妝品
HU Jinlian
LIU Wenguang
LIU Baohua
美國
