| 摘要 |
Polymeric alkoxysilanes which comprise a polymer network of the average formula <IMAGE> WHEREIN EACH R is an independently selected hydrocarbon or hydrocarbon ether radical, each R' is an independently selected hydrocarbon radical, all of said radicals being free of aliphatic unsaturation, a has a value from 1 to 3; and b has a value from 0.0001 to 1.0. These polymers are made by reacting an alkoxysilane of the formula <IMAGE> WITH WATER AND WITH AN ORGANOSULFONIC ACID OF THE FORMULA R1 SO3H. These polymers are useful in zinc-rich paints and in binders for investment castings.
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