US 11,986,790 B2
Method for preparing microcapsules
Jung Whan Oh, Daejeon (KR); Kyungon Cha, Daejeon (KR); Hyunju Kim, Daejeon (KR); Chanjoong Kim, Daejeon (KR); and Jae Hoon Choe, Daejeon (KR)
Assigned to LG Household & Health Care Ltd., Seoul (KR); and LG Chem, Ltd., Seoul (KR)
Appl. No. 17/051,391
Filed by LG Household & Health Care Ltd., Seoul (KR); and LG Chem, Ltd., Seoul (KR)
PCT Filed Jul. 2, 2019, PCT No. PCT/KR2019/008067
§ 371(c)(1), (2) Date Oct. 28, 2020,
PCT Pub. No. WO2020/009438, PCT Pub. Date Jan. 9, 2020.
Claims priority of application No. 10-2018-0076605 (KR), filed on Jul. 2, 2018; and application No. 10-2019-0079286 (KR), filed on Jul. 2, 2019.
Prior Publication US 2021/0046444 A1, Feb. 18, 2021
Int. Cl. B01J 13/14 (2006.01); B01J 13/02 (2006.01)
CPC B01J 13/14 (2013.01) 18 Claims
 
1. A method for preparing microcapsules comprising the steps of:
step 1: adsorbing acrylic monomers having water solubility of 1 to 100 g/L on surface of inorganic nanoparticles;
step 2: adding a fragrance oil to the inorganic nanoparticles having the acrylic monomers adsorbed on the surface, thus forming an emulsion;
step 3: polymerizing the emulsion from the step 2, thus forming a polymerization solution; and
step 4: adding amine-based monomers and an initiator to the polymerization solution from the step 3, thus progressing polymerization.