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EP Citations: EP0681560

Cited inInternational search
Type:Patent literature
Publication No.:US4055218  [DA]
 (KAMPF FRITZ, et al);
Type:Patent literature
Publication No.:US4144934  [DA]
 (KAMPF FRITZ, et al);
Type:Patent literature
Publication No.:EP0382383  [DY]
 (ALCAN INT LTD [CA]) [DY] 1-11 * see column 4, lines 24-46; column 5, lines 25-29; example ; claims *;
Type:Patent literature
Publication No.:EP0564659  [PX]
 (SUMITOMO CHEMICAL CO [JP]) [PX] 1-11 * see page 6, lines46-56; page 7, lines 15-17; page 8, lines 48-49; claims; figure 1 *
Type:Non-patent literature
Publication information:[Y]  - E. BARTHOLOMÉ, Ullmanns Encyklopädie der technischen Chemie, 4th. Ed, WEINHEIM (DE), VERLAG CHEMIE, (1974) [Y] 1-11 * page 312, column L, paragraphs 2-5 *