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:
Jan. 07, 2014
Filed:
Feb. 08, 2011
Jong-hyuk Kwon, Nam-gu Incheon, KR;
Jun-kyu Kim, Yuseong-gu Daejeon, KR;
Jong-Hyuk Kwon, Nam-gu Incheon, KR;
Jun-Kyu Kim, Yuseong-gu Daejeon, KR;
LG Chem, Ltd., Seoul, KR;
Abstract
The present invention relates to an absorbent resin surface-modified with a cationic polymer compound. According to the present invention, the use of a cationic polymer compound can provide a simple and economical way to prepare an absorbent resin surface-modified with a cationic polymer compound with enhanced absorption rate and absorbency, overcoming the problem with the conventional absorbent resin having low absorption rate and poor absorbency. In accordance with one embodiment of the present invention, there is provided an absorbent resin comprising a cross-linked polymer which includes a base resin prepared in the form of powder by polymerizing a monomer based on acrylic acid having an acidic group and neutralized by 40 to 95 mol % and then forming an internal cross-linking with a first cross-linking agent, where the surface of the base resin is cross-linked with a second cross-linking agent, and the cross-linked polymer is surface-modified with a cationic polymer compound comprising a polyacrylamide-based polymer or its salt.