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:
Jul. 11, 2017
Filed:
Dec. 03, 2014
Lg Chem, Ltd., Seoul, KR;
Seung-Mo Lee, Daejeon, KR;
Young-Sam Kim, Daejeon, KR;
Kyoung-Shil Oh, Daejeon, KR;
Young-In Yang, Daejeon, KR;
Ye-Hon Kim, Daejeon, KR;
LG Chem, Ltd., , KR;
Abstract
Disclosed is a method of preparing a superabsorbent polymer, including a) subjecting a monomer composition composed of a water-soluble ethylenic unsaturated monomer and a polymerization initiator to thermal polymerization or photopolymerization, thus preparing a hydrous gel polymer, b) drying the hydrous gel polymer, c) grinding the dried hydrous gel polymer, d) adding the ground hydrous gel polymer with particles having i) a BET specific surface area of 300 to 1500 m/g and ii) a porosity of 50% or more and with a surface crosslinking agent, and e) performing a surface crosslinking reaction.