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The corresponding amine oxide of the above ethoxylated PEI can also be prepared following synthesis Example 4. 

To a 500 ml erlenmeyer flask equipped with a magnetic stirring bar is added poly( ethyleneimine ), MW 1200 ethoxy- lated to a degree of 7 (248.4 g, 0.707 mol nitrogen, prepared as in Synthesis Example 5) and acetonitrile (Baker, 200 mL). Dimethyl sulfate (Aldrich, 8.48 g, 0.067 mol) is added all at once to the rapidly stirring solution, which is then stoppered and stirred at room temperature overnight. The acetonitrile is evaporated on the rotary evaporator at -60° C., followed by a Kugelrohr apparatus (Aldrich) at -80° C. to afford -220 g of the desired material as a dark brown viscous liquid. A $^{13}$C-NMR (D$_{2}$ 0) spectrum shows the absence of a peak at -58 ppm corresponding to dimethyl sulfate. A $^{1}$H-NMR (D$_{2}$0) spectrum shows the partial shifting of the peak at 2.5 ppm (methylenes attached to unquaternized nitrogens) to -3.0 ppm. 

4.7% Oxidation of 9.5% Quaternized PEI 1200 E7 

To a 500 ml erlenmeyer flask equipped with a magnetic stirring bar is added poly(ethyleneimine), MW 1200 which has been ethoxylated to a degree of 7, and -9.5% quater- nized with dimethyl sulfate (144 g, -0.37 mol oxidizeable nitrogen, prepared as in Example 6), hydrogen peroxide (Aldrich, 35.4 g of a 50 wt% solution in water, 0.52 mol), and water (100 g). The flask is stoppered, and after an initial exotherm the solution is stirred at room temperature over- night. A $^{1}$H-NMR (D$_{2}$ 0) spectrum shows the total shifting of the methylene peaks at 2.5-3.0 ppm to -3.5 ppm. To the solution is added just enough sodium bisulfite as a 40% water solution to bring the residual peroxide level down to 1-5 ppm. The sodium sulfate which forms causes an aque- ous phase to separate which contains salts, but little or no organics. The aqueous salt phase is removed and the desired oxidized polyethyleneimine derivative is obtained and stored as a 52% solution in water. 

The following compositions are in accordance with the present invention 

<img src='content_image/938520.jpg'>

Synthesis Example 6 

9.7% Quaternization of PEI 1200 E7 

Synthesis Example 7 

## EXAMPLE 1 

<img src='content_image/938521.jpg'>

The following compositions for use as dryer-added sheets are in accordance with the invention 

<img src='content_image/938519.jpg'>

The following detergent formulations, are in accordance with the present invention: 

-continued 

## EXAMPLE 2 

## EXAMPLE 3 

