PHOTOCHEMICALLY STABLE, NON-LEACHING SUNSCREENS FROM EPOXIDE-BASED SILANE COUPLING AGENTS AND UV ABSORBING CHROMOPHORES
申请人:ARIZONA BOARD OF REGENTS ON BEHALF OF THE UNIVERSITY OF ARIZONA
公开号:US20180333347A1
公开(公告)日:2018-11-22
UV absorbing monomers having one or more alkoxysilyl functional groups are produced through epoxide reaction chemistry. Sol-gel or emulsion polymerization of said UV absorbing monomers by themselves, or with alkoxysilane comonomers, affords nanoparticle sunscreens with reduced chemical exposure and improved photostability. Minimized leaching and decreased levels of photo-degradation were achieved with covalent incorporation to ensure isolation of the sunscreen chromophores and any photo-products from the skin.
COMPOUND AND COLOR CONVERSION FILM COMPRISING SAME
申请人:LG CHEM, LTD.
公开号:US20210347790A1
公开(公告)日:2021-11-11
The present specification relates to a compound, and a color conversion film, a backlight unit and a display apparatus including the same.
PHOTOCHEMICALLY STABLE, NON-LEACHING, BRIDGED POLYSILSESQUIOXANE BASED SUNSCREENS
申请人:ARIZONA BOARD OF REGENTS ON BEHALF OF THE UNIVERSITY OF ARIZONA
公开号:US20220339091A1
公开(公告)日:2022-10-27
Bridged polysilsesquioxane based sunscreens prepared as nanoparticles via oil/water microemulsion polymerization, sol-gel polymerizations, or a modified Stöber process. Minimized leaching and decreased levels of photo-degradation were achieved with covalent incorporation, with bridged incorporation necessary to ensure isolation of the sunscreen and any photo-products from skin. SPF values were found to be comparable to existing commercial sunscreens. Furthermore the bridged polysilsesquioxane based sunscreens can be classified as broad-spectrum, and rated from moderate to superior in terms of UVA protective ability.
Van Rensburg, Caryl K.A. Janse; Robinson, Ross S., South African Journal of Chemistry, 2009, vol. 62, p. 143 - 148
作者:Van Rensburg, Caryl K.A. Janse、Robinson, Ross S.