Title:
UV LIGHT BLOCKING AGENT CONTAINING CELLULOSE NANOFIBERS
Document Type and Number:
WIPO Patent Application WO/2020/235831
Kind Code:
A1
Abstract:
The present invention relates to a UV light blocking agent containing cellulose nanofibers, and a use, as a UV light blocking agent, of cellulose nanofibers having a UV light blocking effect is disclosed. The cellulose nanofibers according to the present invention are an organic UV light blocking agent derived from a natural plant and have a non-absorbing UV light scattering mechanism, which is a UV light blocking mechanism of an inorganic UV light blocking agent, and thereby are non-toxic to a human body or skin. Therefore, the present invention can be applied as a UV light blocking cosmetic and appropriately utilized as a bio-material for an additive for a synthetic resin composition, etc. such as a film and a pharmaceutical composition for outer skin.
Inventors:
JEON SO YOUNG (KR)
SONG WOO YONG (KR)
SHIN SU BOK (KR)
SONG WOO YONG (KR)
SHIN SU BOK (KR)
Application Number:
PCT/KR2020/005737
Publication Date:
November 26, 2020
Filing Date:
April 29, 2020
Export Citation:
Assignee:
NATURE COSTECH CO LTD (KR)
International Classes:
A61K8/73; A61K8/02; A61P17/04
Domestic Patent References:
| WO2017199157A1 | 2017-11-23 |
Foreign References:
| KR20200042370A | 2020-04-23 | |||
| KR101871194B1 | 2018-07-06 | |||
| KR20170120019A | 2017-10-30 |
Other References:
NIU, XUN: "Highly transparent, strong, and flexible films with modified cellulose nanofiber bearing UV shielding property", BIOMACROMOLECULES, vol. 19, no. 12, 10 December 2018 (2018-12-10), pages 4565 - 4575, XP055762952
FENG, XIN: "Use of carbon dots to enhance UV-blocking of transparent nano- cellulose films", CARBOHYDRATE POLYMERS, vol. 161, 9 January 2017 (2017-01-09), pages 253 - 260, XP029918010
YU, JUAN: "Contribution of hemicellulose to cellulose nanofiber-based nano composite films with enhanced strength, flexibility and UV-blocking properties", CELLULOSE, vol. 26, no. 10, 21 May 2019 (2019-05-21), pages 6023 - 6034, XP036806300
HAYDEN, DOUGLAS R.: "Fully biobased highly transparent nanopaper with UV -blocking functionality", ACS APPL. POLYM. MATER., vol. 1, no. 4, 7 March 2019 (2019-03-07), pages 641 - 646, XP055713366, DOI: 10.1021/acsapm.9b00192
LI, CHAORONG: "Functionalization of electrospun nanofibers of natural co- tton cellulose by cerium dioxide nanoparticles for ultraviolet protection", J. APPL. POLYM. SCI., vol. 130, no. 3, 30 April 2013 (2013-04-30), pages 1524 - 1529, XP055074664, DOI: 10.1002/app.39264
FENG, XIN: "Use of carbon dots to enhance UV-blocking of transparent nano- cellulose films", CARBOHYDRATE POLYMERS, vol. 161, 9 January 2017 (2017-01-09), pages 253 - 260, XP029918010
YU, JUAN: "Contribution of hemicellulose to cellulose nanofiber-based nano composite films with enhanced strength, flexibility and UV-blocking properties", CELLULOSE, vol. 26, no. 10, 21 May 2019 (2019-05-21), pages 6023 - 6034, XP036806300
HAYDEN, DOUGLAS R.: "Fully biobased highly transparent nanopaper with UV -blocking functionality", ACS APPL. POLYM. MATER., vol. 1, no. 4, 7 March 2019 (2019-03-07), pages 641 - 646, XP055713366, DOI: 10.1021/acsapm.9b00192
LI, CHAORONG: "Functionalization of electrospun nanofibers of natural co- tton cellulose by cerium dioxide nanoparticles for ultraviolet protection", J. APPL. POLYM. SCI., vol. 130, no. 3, 30 April 2013 (2013-04-30), pages 1524 - 1529, XP055074664, DOI: 10.1002/app.39264
Attorney, Agent or Firm:
HWANG, Enam (KR)
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