Organotin compounds, polyfunctional

We have examined some of these materials in the prior section, but here we will focus on additional examples. Organotin catalysts for use in polyurethane systems have been produced using reactions of R2Sn and R2SnCl2 in the presence of polyfunctional molecules such as in structure 33. These products are presumably crosslinked because of the trifunctional nature of the nonorganotin reactant. The products are used in cationic electrodepositable polyurethane compounds. 

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