HYALURONIC ACID (HA) FILLER COMPOSITION USING POLYETHYLENE GLYCOL (PEG) AND GLYCOLIC ACID (GA) AS CROSSLINKING AGENTS AND METHOD FOR PREPARING SAME

WIPO Patent Application WO/2023/027330

A1

The present invention relates to a hyaluronic acid (HA) filler composition using polyethylene glycol (PEG) and glycolic acid (GA) as crosslinking agents and a method for preparing same. The present invention is characterized by preparation through the crosslinking of hyaluronic acid (HA) with polyethylene glycol (PEG) and glycolic acid (GA). According to the present invention, polyethylene glycol (PEG) and glycolic acid (GA) are alternately added and stirred to crosslink liquefied hyaluronic acid particles, and viscoelasticity is controlled by adjusting the amounts of PEG and GA added, and thus, a filler composition that is elastically applicable to a treatment area is provided.

WO/2005/025520	CHITOSAN SPINNING METHOD, DEVICE THEREFOR, AND RESULTING CHITOSAN YARN, AND USES THEREOF
WO/2012/113529	IN SITU FORMATION OF A FILLER
WO/2021/142321	CHITOSAN NERVE SCAFFOLD WITH MICROCHANNELS AND NANOFIBERS

LEE DOKYOUNG (KR)
LEE EUNYOUNG (KR)

PCT/KR2022/009837

March 02, 2023

July 07, 2022

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LEE DOKYOUNG (KR)
LEE EUNYOUNG (KR)

A61L27/20; A61L27/18; C08B37/08; C08L5/08

JP2008527056A	2008-07-24
US20140039062A1	2014-02-06
JP2016500020A	2016-01-07
KR20190059609A	2019-05-31
US20130023507A1	2013-01-24
KR102373295B1	2022-03-11

K2B INTERNATIONAL PATENT LAW FIRM (KR)

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