Dendritic and highly branched polyurethanes

Details Dendritic and highly branched polyurethanes Dendritic and highly branched polyurethanes

C - Chemistry, Metallurgy

08

G

C08G 18/72 (2006.01) C08G 18/32 (2006.01) C08G 83/00 (2006.01)

Patent

CA 2297640

In a process for preparing dendritic or highly branched polyurethanes by reacting diisocyanates and/or polyisocyanates with compounds containing at least two groups which are reactive toward isocyanates, at least one of the reactants contains functional groups having a different reactivity compared to the other reactant and the reaction conditions are selected so that only certain reactive groups react with one another in each reaction step.

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