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EP0843665
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EP Citations: EP0843665
| Cited in | International search | Type: | Patent literature | Publication No.: | US3882142
[YD] (WALWORTH BRYANT LEONIDAS, et al) [YD] 1 * siehe Spalte 7, Zeilen 28-39 und Spalte 4, Zeile 12 *; | Type: | Patent literature | Publication No.: | JPS4810445B
[Y] ; | Type: | Non-patent literature | Publication information: | [Y] - DATABASE WPI, 1, Derwent World Patents Index, Database accession no. 73-19462U, XP002017293 & JPS4810445B B1 00000000 (NIPPON KAYAKU KK) [Y] 1 * abstract * | Type: | Non-patent literature | Publication information: | [Y] - GUYOT ET AL., "Action of concentrated sulfuric acid on methyl alcohol", CHEMICAL ABSTRACTS, (1920), vol. 14, no. 10, Database accession no. 403, page 403, XP002017291 [Y] 1 * abstract * | Type: | Non-patent literature | Publication information: | [Y] - GUYOT ET AL., "Action of sulfuric anhydride and oleum on methyl alcohol. Preparation of dimethyl sulfate", CHEMICAL ABSTRACTS, (1920), vol. 14, no. 10, Database accession no. 539, page 539, XP002017292 [Y] 1 * abstract * |