| http://www.w3.org/ns/prov#value | - During preparation of the polyurethane emulsion, in order to suppress a side reaction between water and the isocyanate group, and to promote the reaction between the isocyanate group and the polyamino compound, a compound such as phosphoric acid, hydrochloric acid, benzoyl chloride, or a similar compound can be added to the emulsion.
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