Abstract
Abstract Electronic products such as appliances, computers, and cellular phones have printed circuit boards (PCBs) in common andthe PCBs in the waste electronic products contain valuable metals and organic resins. In Korea, recovery and recycling of theorganic resins as well as the valuable metallics from the wastes are required indeed as the most of resources are being importedfrom abroad. In this article, the patents and papers for the recycling of organic residues from the waste PCBs were collected andanalyzed. The open patents of USA (US), European Union (EP), Japan (JP), and Korea (KR) and SCI journals from 1979 to2012 were investigated. The patents and journals were collected using key-words and filtered by the definition of the technology.The patents and journals were analyzed by the years, countries, companies, and technologies and the technical trends were dis-cussed in this paper. It is showed sluggish relatively activity of published papers and patent applications for polymer man-ufacturing technology in local and abroad.Key words : E-waste organic residue, recycling, patent, paper, technical trend* Received: January 16, 2013~Revised : February 14, 2013~Accepted : February 28, 2013Corresponding Author : Dai-Soo Lee (E-mail : dslee@jbnu.ac.kr)Division of Semiconductor and Chemical Engineering, Chonbuk National University, Deokjin-dong 664-14, Jeonju 561-756, KoreaTel : +82-63-270-2310 / Fax : +82-63-270-2306The Korean Institute of Resources Recycling. All rights reserved. This is an open-access article distributed under the termsof the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/3.0/), which permitsunrestricted non-commercial use, distribution and reproduction in any medium, provided the original work is properly cited.
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