参考文献:
GRÜNENTHAL GMBH FRANK, Robert BAHRENBERG, Gregor CHRISTOPH, Thomas LESCH, Bernhard LEE, Jeewoo Patent: WO2/4545 A, 2 Location in patent: Page/Page column 8
参考文献:
GRÜNENTHAL GMBH FRANK, Robert BAHRENBERG, Gregor CHRISTOPH, Thomas LESCH, Bernhard LEE, Jeewoo Patent: WO2/45447 A, 2 Location in patent: Page/Page column 67