| 摘要 |
1,259,057. Printing inks. FARBWERKE HOECHST A.G. 14 May, 1970 [14 May, 1969], No. 23475/70. Heading C4A. Printing inks comprise 0À5-3À0% by wt. of polyethylene particles of molecular weight 10,000 to 30,000, at least 90% of which have a diameter less than 50 microns. |
