US 12,251,856 B2
Complex minute cutting apparatus for super absorbent polymer hydrogel
Jinuk Choi, Daejeon (KR); Heechang Woo, Daejeon (KR); Gicheul Kim, Daejeon (KR); and Yoon Jae Min, Daejeon (KR)
Assigned to LG CHEM, LTD., Seoul (KR)
Appl. No. 17/630,576
Filed by LG CHEM, LTD., Seoul (KR)
PCT Filed Nov. 19, 2020, PCT No. PCT/KR2020/016390
§ 371(c)(1), (2) Date Jan. 27, 2022,
PCT Pub. No. WO2021/101277, PCT Pub. Date May 27, 2021.
Claims priority of application No. 10-2019-0150705 (KR), filed on Nov. 21, 2019.
Prior Publication US 2022/0258380 A1, Aug. 18, 2022
Int. Cl. B29B 9/12 (2006.01); B26D 5/22 (2006.01); B26D 7/06 (2006.01); B29B 13/10 (2006.01)
CPC B29B 9/12 (2013.01) [B26D 5/22 (2013.01); B26D 7/0666 (2013.01); B29B 13/10 (2013.01)] 7 Claims
OG exemplary drawing
 
1. A complex minute cutting apparatus for a superabsorbent hydrogel, comprising:
a barrel body comprising:
a transfer space through which a hydrogel is transferred; and
a discharge part at a side surface of the barrel body;
a transfer unit located in the transfer space of the barrel body to transfer the hydrogel in the transfer space, wherein the transfer unit includes a screw member rotatably installed in the transfer space to move the hydrogel; and
a plurality of cutting modules attached to the screw member of the transfer unit in a longitudinal direction to pulverize and discharge the hydrogel through a discharge part in a particle form,
wherein each of the cutting modules includes: a cutter member to pulverize the hydrogel transferred by the transfer unit; and perforated plates to discharge the hydrogel pulverized by the cutter member in a cut state,
wherein
the perforated plate includes a plurality of cutting holes discharging the hydrogel in a particle form,
the hydrogel cuts through the cutting holes to form the particles having a size of the cutting holes.