US 11,834,560 B2
Water degradable film containing hyaluronic acid or salt thereof and polyphenol compounds
Jae-Hyeok Lee, Daejeon (KR); Sun-Hyun Park, Daejeon (KR); and Ki-Suk Kim, Daejeon (KR)
Assigned to Korea Research Institute of Chemical Technology, Daejeon (KR)
Filed by Korea Research Institute of Chemical Technology, Daejeon (KR)
Filed on Jul. 21, 2020, as Appl. No. 16/934,475.
Prior Publication US 2021/0070951 A1, Mar. 11, 2021
Int. Cl. C08J 5/18 (2006.01); C08K 5/13 (2006.01); C08L 5/08 (2006.01); B82Y 30/00 (2011.01); B82Y 40/00 (2011.01)
CPC C08J 5/18 (2013.01) [C08K 5/13 (2013.01); C08L 5/08 (2013.01); B82Y 30/00 (2013.01); B82Y 40/00 (2013.01); C08J 2305/08 (2013.01); C08L 2201/06 (2013.01); C08L 2203/16 (2013.01)] 7 Claims
 
1. A water degradable film for transferring or transcribing nanomaterials without leaving residues, said water degradable film consisting of:
a nanomaterial; and
a water degradable film consisting of hyaluronic acid or a salt thereof and a polyphenol compound, wherein the polyphenol compound is bonded to at least a part of the hyaluronic acid main chains through hydrogen bonding,
wherein the nanomaterial comprises one or more selected from the group consisting of carbon nanotube, graphene, graphene oxide and magnetic nanoparticle, and
wherein the polyphenol compound is one or more compounds selected from the group consisting of tannic acid, isoflavone, catechin, curcumin, tannin, hydroxy benzoic acid, hydroxy cinnamic acid, flavonoid, lignan, stilbene, caffeic acid, chlorogenic acid, anthocyan, pyrogallol, ellagic acid, gallic acid, theaflavin-3-gallate, resveratrol, kaempferol, quercetin, myricetin, luteolin, delphinidin, cyanidin, ampelopsin, hesperidin, aurantinidine, europinidin, pelargonidin, malvidin, peonidin, petunidin and rosinidin.