The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 23, 2017
Filed:
Apr. 13, 2012
Gyu Leem, Daejeon, KR;
Gi-cheul Kim, Daejeon, KR;
Sang-gi Lee, Daejeon, KR;
Kyu-pal Kim, Daejeon, KR;
Tae-young Won, Daejeon, KR;
Chang-sun Han, Daejeon, KR;
Gyu Leem, Daejeon, KR;
Gi-Cheul Kim, Daejeon, KR;
Sang-Gi Lee, Daejeon, KR;
Kyu-Pal Kim, Daejeon, KR;
Tae-Young Won, Daejeon, KR;
Chang-Sun Han, Daejeon, KR;
LG CHEM, LTD., Seoul, KR;
Abstract
The present invention relates to a method of preparing a super absorbent polymer (SAP), and more specifically to a method of preparing a SAP including the steps of spraying the monomer composition on a substrate having a hydrophobic surface of a certain tan angle and carrying out a UV polymerization on a polymerization reactor having a slightly hydrophilic surface. The present invention can improve the conversion rate of polymerization because the shape of the monomer solution is changed from prior sheet form to droplet form so that UV rays reach the deeper layer of the droplets, can minimize or simplify the recycling process because it is easy to control the particles of the prepared polymer, and can provides the SAP of high caliber by narrowing the particle diameter distribution and improving the uniformity.