Method for the preparation of an aqueous emulsion of poly(silses

Compositions – Preservative agents – Anti-corrosion

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252314, 10628714, B01J 1302

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047786248

ABSTRACT:
The invention provides a method for the preparation of a stable aqueous emulsion of a poly(silsesquioxane) without formation of gelled particles. In the method, a trialkoxysilane compound as the starting material is first emulsified in an aqueous medium containing a cationic surface active agent and a non-ionic surface active agent having a specified HLB value in the range from 16 to 20 in combination followed by the addition of an alkali catalyst and heating to effect hydrolysis and polycondensation of the trialkoxysilane.

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patent: 4648904 (1987-03-01), De Pasquale et al.
patent: 4670299 (1987-06-01), Fukuyama et al.

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