Mitsui Chemicals, Inc.; Murayama, Koichi; Shimokawatoko, Yoshiki; Kanno, Takashi; Takamatsu, Koji; Takeuchi, Hiroshi; Sasaki, Masaaki; Kotaki, Yasushi Patent: US2013/109881 A1, 2013 ; Location in patent: Paragraph 0221-0224 ;