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GRÜNENTHAL GMBH; FRANK, Robert; CHRISTOPH, Thomas; DAMANN, Nils; LESCH, Bernhard; BAHRENBERG, Gregor; SAUNDERS, Derek John; STOCKHAUSEN, Hannelore; KIM, Yong-Soo; KIM, Myeong-Seop; LEE, Jeewoo Patent: WO2013/68467 A1, 2013 ; Location in patent: Page/Page column 57; 59; 60; 61 ;