A particularly preferred embodiment features 100 percent ethylene oxide.The polyalkoxylated alcohol of Formula II above is reacted with a bis(trialkoxysiloxy) alkylhalosilane of the formula: ##STR6## wherein R and R' are as defined above in Formula I, and X is a halogen selected from F, Cl, Br and I. Preferably, X isCl, Br or I; Cl is most preferred.The compounds of Formula III are disclosed in co