| 摘要 |
<p>1307382 Aqueous coating compositions CIBA-GEIGY AG 14 Jan 1970 [15 Jan 1969] 1859/70 Heading C4A [Also in Divisions C3 and D2] Coating compositions used in a pressuresensitive copying system (see Division D2) comprise: (Example 1) anatase ground in a ball mill with a solution of polyinyl alcohol or of gum arabic in water; dyestuff, formaldehydenaphthalenesulphonic acid condensate and water are also ground together in a ball mill, and the two products mixed, and (Examples 6 and 8) dyestuff and polymetaphosphate ground together with water in a ball mill and starch is added.</p> |
