OXYGEN-ABSORBENT COMPOSITION COMPRISING A SILICA MATRIX THAT ENCAPSULATES FATTY ACIDS, UNSATURATED ESTERS OR COMPOUNDS CONTAINING SAME, AND METHOD FOR PRODUCING SAID COMPOSITION
Jorge Alberto MEDINA PERILLA,Angela Maria GARCIA MORA,Jacques VERDU,Jairo Arturo ESCOBAR GUTIERREZ,Bruno FAYOLLE
申请号：
US16463840
公开号：
US20190291076A1
申请日:
2017.11.24
申请国别(地区):
US
年份:
2019
代理人:
摘要：
The production of an oxygen-absorbent composition is provided, having: (a) a porous silica encapsulation matrix； and (b) a composition containing an oxygen-absorbent compound selected from fatty acids, unsaturated esters or compounds containing same, and, optionally, a catalyst based on an inorganic salt of a transition metal, wherein the composition (b) is encapsulated in the porous silica matrix (a). The composition can form part of the structure of the packaging for oxidation sensitive products or be placed in the surrounding atmosphere to reduce the concentration of oxygen. A method for encapsulating the active compound or the active compound together with a catalyst, and subsequently incorporating same into polymer matrices is also provided.
