US 12,465,064 B2
Adsorbates
Olivia Brigitte Vidoni, Kaiseraugst (CH); Christine Gothscheck, Kaiseraugst (CH); and Kai Urban, Kaiseraugst (CH)
Assigned to DSM IP Assets B.V., (NL)
Appl. No. 17/298,765
Filed by DSM IP Assets B.V., Heerlen (NL)
PCT Filed Dec. 3, 2019, PCT No. PCT/EP2019/083480
§ 371(c)(1), (2) Date Jun. 1, 2021,
PCT Pub. No. WO2020/115036, PCT Pub. Date Jun. 11, 2020.
Claims priority of application No. 18210210 (EP), filed on Dec. 4, 2018.
Prior Publication US 2022/0053798 A1, Feb. 24, 2022
Int. Cl. A23K 20/147 (2016.01); A23K 20/158 (2016.01); A23K 20/28 (2016.01); A23K 40/35 (2016.01); A23K 50/10 (2016.01)
CPC A23K 20/147 (2016.05) [A23K 20/158 (2016.05); A23K 20/28 (2016.05); A23K 40/35 (2016.05); A23K 50/10 (2016.05)] 12 Claims
 
1. A method of producing a storage stable adsorbate comprising:
(a) forming a mixture which comprises:
(a1) 1 to 25 wt-%, based on total weight of the adsorbate, of 3-nitrooxypropanol (3-NOP), and
(a2) 5 to 25 wt-%, based on total weight of the adsorbate, of a gelatin, wherein
the 3-NOP and the gelatin are present in amounts to provide a weight ratio (w/w) of the 3-NOP to the gelatin of 0.1 to 1;
(b) applying the mixture of step (a) to at least 30 wt-%, based on total weight of the adsorbate, of a porous precipitated silica carrier, and thereafter
(c) allowing at least 50 wt-% of the mixture of step (a) to be adsorbed within internal pores of the silica carrier, wherein
the gelatin is present in the mixture in an amount sufficient such that 98.7% to 100% of the 3-NOP is retained within the internal pores of the silica carrier after a storage time of 3 months in a polypropylene container at 25° C. and 50% relative humidity.