US 11,772,067 B2
Odor neutralizer for ammonia and primary or secondary amines
Pascal Beaussoubre, Geneva (CH); and Wolfgang Fieber, Geneva (CH)
Assigned to FIRMENICH SA, Satigny (CH)
Appl. No. 16/605,397
Filed by FIRMENICH SA, Satigny (CH)
PCT Filed Apr. 25, 2018, PCT No. PCT/EP2018/060571
§ 371(c)(1), (2) Date Oct. 15, 2019,
PCT Pub. No. WO2018/197549, PCT Pub. Date Nov. 1, 2018.
Claims priority of application No. 17168502 (EP), filed on Apr. 27, 2017.
Prior Publication US 2020/0047152 A1, Feb. 13, 2020
Int. Cl. B01J 20/10 (2006.01); B01D 53/04 (2006.01); B01J 20/26 (2006.01)
CPC B01J 20/103 (2013.01) [B01D 53/04 (2013.01); B01J 20/262 (2013.01); B01D 2253/106 (2013.01); B01D 2257/406 (2013.01)] 11 Claims
OG exemplary drawing
 
1. A composition comprising solid particles of an oxide of an element selected from the group consisting of Si, Ti, Fe, Zn and Al and at least one solid carrier, wherein the solid particles each have a surface functionalized with at least one terminal cyclocarbonate group attached to the surface via a linker, wherein the at least one terminal cyclocarbonate group and the linker has the structure set forth in formula (I):

OG Complex Work Unit Chemistry
wherein:
n=1 or 2;
[X] is an element selected from the group consisting of O, N and C;
[Y] represents an alkylene group carrying 1-20 C atoms, that can be linear, branched, or cyclic, or connected to a carbonyl or an ether group;
q=0 or 1; and
R1 is a coupling reactive group serving as a linker selected from silanes, siloxanes, phosphates or carboxylates,
wherein the composition comprising the solid particles in an amount comprised between 0.1% and 50% by weight, relative to the total weight of the composition, wherein the solid carrier is an absorbent material obtained from a processed corncob.