| http://www.w3.org/ns/prov#value | - Some examples of suitable catalysts for preparation of the formed PU of this invention include, but are not limited to, tin and tertiary amine compounds or combinations thereof such as dibutyl tin dilaurate, and tin or mixed tin catalysts including those available under the tradenames ???Cotin 222???, ???Formrez UL-22???(Witco), ???DABCO??? (a triethylene diamine), stannous octanoate, trimethyl am
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