| abstract |
The invention relates to aqueous solutions of proteins with a molecular weight above 8500 daltons, characterized by a content of a compound of formula 1, in which Xn is a chain of n links of the formulas II or III in any order, n is 2 to 200 and R 'is hydrogen, methyl or ethyl, where the radicals R' can be the same or different, but at least half of the chain links R '= hydrogen and R 2 and R 3 are the same or are different and represent hydrogen or an organic radical, processes for their preparation and their use. The invention further relates to the use of compounds of the formula I for the pretreatment of hydrophobic surfaces to avoid the adsorption or denaturation of proteins. |