| 摘要 |
Aqueous polyethylene dispersions, suitable for improving the surface characteristics of glass, are disclosed. The dispersions contain 40 to 100 percent by weight, based on the polyethylene, of a mixture of (a) amine oxides of the general formula <IMAGE> I wherein R1 is alkyl with 7 to 17 carbon atoms; n is 2 or 3 and (b) the salt of an amine of the general formula R2N[(C2H4O)mH]2 II with a physiological safe carboxylic acid, wherein R2 is alkyl with 8 to 18 carbon atoms and the sum of the units m is 20 to 100, the components (a) and (b) being present in a ratio by weight of 4:1 to 1:1. The dispersions may be obtained by stirring a melt of the polyethylene, which contains component (b), into water, which contains component (a). |
