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US 2022/0064387 A1Published application
Composite film and method for preparing the same
AssigneesHyundai Motor Company, Kia Motors Corporation, Korea Research Institute of Chemical Technology
InventorsChae Hwan Hong, Jin Woo Choung, Dong Yeop Oh, Seul A Park, Hyeon Yeol Jeon, Jeyoung Park, Sung Yeon Hwang
Life of this patent
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Abstract
Disclosed is a composite film including a nanocellulose film including cellulose nanofibers stacked in a structure including a plurality of pores; and a polycarbonate resin filling the pores in the nanocellulose film and including a repeating unit that comprises a moiety derived from isosorbide.
Claims15
A composite film comprising:
- a film comprising cellulose nanofibers;
- and
- a polycarbonate resin comprising a repeating unit that comprises an isosorbide structure.
A preparing method of a composite film, comprising:
- preparing a polycarbonate solution comprising a polycarbonate resin comprising a repeating unit of Chemical Formula 1 and a solvent;
- and
- filling the polycarbonate solution into pores of a nanocellulose film comprising cellulose nanofibers wherein the cellulose nanofibers are stacked in a structure including a plurality of pores.
Dependencies are inferred from the claim text.